Pancakes in the HMI library has 25 reported results for lead, cadmium, total arsenic, total mercury, nickel, chromium, aluminium and uranium from 6 sources.1GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →2FY2018-FY2020 TDS Elements Analytical ResultsFDA Total Diet StudyRead source →3Assessment of cadmium and lead concentrations in different types of cosmetics products consumed in IranNational Journal of Physiology, Pharmacy and Pharmacology 8(8):1200-1204Read source →4Infants’ and young children’s dietary exposures to lead and cadmium: FDA total diet study 2018-2020Food Additives & Contaminants: Part ARead source →5Survey of total mercury in total diet food composites and an estimation of the dietary intake of mercury by adults and children from two Canadian cities, 1998-2000Food Additives & ContaminantsRead source →6Survey of Aluminium Content of Processed Food Using Baking Powder (2015–2016)Shokuhin Eiseigaku Zasshi (Food Hygiene and Safety Science)Read source →
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Metals measured:
Lead, cadmium, total arsenic, total mercury, nickel and chromium and others, in 25 results from 6 sources.1GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →2FY2018-FY2020 TDS Elements Analytical ResultsFDA Total Diet StudyRead source →3Assessment of cadmium and lead concentrations in different types of cosmetics products consumed in IranNational Journal of Physiology, Pharmacy and Pharmacology 8(8):1200-1204Read source →4Infants’ and young children’s dietary exposures to lead and cadmium: FDA total diet study 2018-2020Food Additives & Contaminants: Part ARead source →
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Main drivers:
Form, basis and where the pancakes was sampled; reporting limits decide how many results are non-detects.1GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →2FY2018-FY2020 TDS Elements Analytical ResultsFDA Total Diet StudyRead source →3Assessment of cadmium and lead concentrations in different types of cosmetics products consumed in IranNational Journal of Physiology, Pharmacy and Pharmacology 8(8):1200-1204Read source →4Infants’ and young children’s dietary exposures to lead and cadmium: FDA total diet study 2018-2020Food Additives & Contaminants: Part ARead source →
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Practical framing:
Ask for lot results with a quantification limit well below the limit that applies in the destination market.1GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →2FY2018-FY2020 TDS Elements Analytical ResultsFDA Total Diet StudyRead source →3Assessment of cadmium and lead concentrations in different types of cosmetics products consumed in IranNational Journal of Physiology, Pharmacy and Pharmacology 8(8):1200-1204Read source →4Infants’ and young children’s dietary exposures to lead and cadmium: FDA total diet study 2018-2020Food Additives & Contaminants: Part ARead source →
Pancakes overview
Pancakes in the HMI library has 25 reported results for lead, cadmium, total arsenic, total mercury, nickel, chromium, aluminium and uranium from 6 sources.1GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →2FY2018-FY2020 TDS Elements Analytical ResultsFDA Total Diet StudyRead source →3Assessment of cadmium and lead concentrations in different types of cosmetics products consumed in IranNational Journal of Physiology, Pharmacy and Pharmacology 8(8):1200-1204Read source →4Infants’ and young children’s dietary exposures to lead and cadmium: FDA total diet study 2018-2020Food Additives & Contaminants: Part ARead source →5Survey of total mercury in total diet food composites and an estimation of the dietary intake of mercury by adults and children from two Canadian cities, 1998-2000Food Additives & ContaminantsRead source →6Survey of Aluminium Content of Processed Food Using Baking Powder (2015–2016)Shokuhin Eiseigaku Zasshi (Food Hygiene and Safety Science)Read source → WHO GEMS/Food submissions reported lead in pancakes, as sold from 26 results in 1 reporting region, with subgroup medians below 10 µg/kg, mostly non-detects.1GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source → In the US Total Diet Study, pancakes, frozen had a median lead result below 4 µg/kg across 3 composites from 2018–2020.2FY2018-FY2020 TDS Elements Analytical ResultsFDA Total Diet StudyRead source →
Zafarzadeh et al. 2018 reported lead at 4,830 µg/kg (mean) in pancakes, as sold from produced in Iran.3Assessment of cadmium and lead concentrations in different types of cosmetics products consumed in IranNational Journal of Physiology, Pharmacy and Pharmacology 8(8):1200-1204Read source → Across 2 other studies of ordinary farms and markets, reported cadmium means and medians on an as-sold or fresh-weight basis ranged from 13 µg/kg (Spungen et al. 2024) to 1,120 µg/kg (Zafarzadeh et al. 2018).3Assessment of cadmium and lead concentrations in different types of cosmetics products consumed in IranNational Journal of Physiology, Pharmacy and Pharmacology 8(8):1200-1204Read source →4Infants’ and young children’s dietary exposures to lead and cadmium: FDA total diet study 2018-2020Food Additives & Contaminants: Part ARead source →
For a buyer the practical points are the form bought, the basis a result is reported on, where the pancakes came from and the laboratory’s reporting limit. Testing finds contamination but does not remove it.
What counts as pancakes
This page covers pancakes in 3 forms kept separate in every comparison: pancakes, as sold (11 results), pancakes, frozen (9 results) and pancakes, cooked (5 results).1GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →2FY2018-FY2020 TDS Elements Analytical ResultsFDA Total Diet StudyRead source →3Assessment of cadmium and lead concentrations in different types of cosmetics products consumed in IranNational Journal of Physiology, Pharmacy and Pharmacology 8(8):1200-1204Read source →4Infants’ and young children’s dietary exposures to lead and cadmium: FDA total diet study 2018-2020Food Additives & Contaminants: Part ARead source →5Survey of total mercury in total diet food composites and an estimation of the dietary intake of mercury by adults and children from two Canadian cities, 1998-2000Food Additives & ContaminantsRead source →6Survey of Aluminium Content of Processed Food Using Baking Powder (2015–2016)Shokuhin Eiseigaku Zasshi (Food Hygiene and Safety Science)Read source → Foods made from pancakes that have their own pages, such as pancake syrup, are covered there.
Results stay on the basis each source reports: as sold or fresh weight, dry weight, or unstated. Dry-weight, as-sold and unstated results are never pooled, and no moisture conversion is applied.
Heavy metal contamination profile of pancakes
The table holds every extracted pancakes result: one row for each statistic a source reports for a form, group and metal, 25 rows in all, grouped by metal and form; percentiles, ranges and maxima for the same samples as a mean or median are shown on that row.1GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →2FY2018-FY2020 TDS Elements Analytical ResultsFDA Total Diet StudyRead source →3Assessment of cadmium and lead concentrations in different types of cosmetics products consumed in IranNational Journal of Physiology, Pharmacy and Pharmacology 8(8):1200-1204Read source →4Infants’ and young children’s dietary exposures to lead and cadmium: FDA total diet study 2018-2020Food Additives & Contaminants: Part ARead source →5Survey of total mercury in total diet food composites and an estimation of the dietary intake of mercury by adults and children from two Canadian cities, 1998-2000Food Additives & ContaminantsRead source →6Survey of Aluminium Content of Processed Food Using Baking Powder (2015–2016)Shokuhin Eiseigaku Zasshi (Food Hygiene and Safety Science)Read source → Monitoring medians are HMI calculations from individual submissions; non-detects remain intervals between zero and the reporting limit and are never read as zero.1GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →
4 rows can be rated against an HMI reference for the same form and basis, 0 rows have a direct same-study comparison, and the rest stay unrated with the reason recorded.
Comparison methods and scope
Each row is one statistic a source reports for one form of pancakes, group and metal; percentiles, ranges and maxima reported for the same samples as a mean or median are shown on that row. Different forms and preparation states are kept apart, and dry-weight results never share a reference with as-sold or fresh-weight results. Ratings place a result against an HMI reference built from monitoring results and ordinary-setting medians for the same form and basis. Same-study contrasts compare a contaminated or treated site with its control, targeted with random sampling, a prepared form with the unprocessed one, or one group of a study with the median of its other groups. Held rows failed a check against their own source and are shown but not compared.
First displayed analyte: Lead: 6 findings from 4 sources. Each row retains its statistic and measurement basis.
Filter findings
25 of 25 findings · 8 analytes
About this table
| Food form | Collection scope | Finding (µg/kg) | Comparison | Evidence |
|---|---|---|---|---|
3 findings · 2 studies | ||||
| Pancakes, as soldWHO GEMS/Food | PAHO2012–2017 | median. | ||
| Pancakes, as soldZafarzadeh et al. 2018 | produced in Iran2016–2017 | mean. | ||
| Pancakes, as soldZafarzadeh et al. 2018 | produced in Turkey2016–2017 | mean. | ||
2 findings · 2 studies | ||||
| Pancakes, frozenFDA Total Diet Study | 1 collection regions2018–2020 | median. | ||
| Pancakes, frozenSpungen et al. 2024 | all samples2018–2020 | not detected. | ||
1 finding · 1 study | ||||
| Pancakes, cookedWHO GEMS/Food | EURO2018 | median. | ||
4 findings · 2 studies | ||||
| Pancakes, as soldWHO GEMS/Food | EMRO2019 | median. | ||
| Pancakes, as soldWHO GEMS/Food | PAHO2011–2017 | median. | ||
| Pancakes, as soldZafarzadeh et al. 2018 | produced in Iran2016–2017 | mean. | ||
| Pancakes, as soldZafarzadeh et al. 2018 | produced in Turkey2016–2017 | mean. | ||
2 findings · 2 studies | ||||
| Pancakes, frozenFDA Total Diet Study | 1 collection regions2018–2020 | median. | ||
| Pancakes, frozenSpungen et al. 2024 | all samples2018–2020 | mean. | ||
3 findings · 1 study | ||||
| Pancakes, cookedWHO GEMS/Food | EURO2004 | median. | ||
| Pancakes, cookedWHO GEMS/Food | EURO2003 | median. | ||
| Pancakes, cookedWHO GEMS/Food | EURO2018 | median. | ||
1 finding · 1 study | ||||
| Pancakes, as soldWHO GEMS/Food | EURO2018 | median. | ||
1 finding · 1 study | ||||
| Pancakes, frozenFDA Total Diet Study | 1 collection regions2018–2020 | median. | ||
1 finding · 1 study | ||||
| Pancakes, cookedWHO GEMS/Food | EURO2007–2008 | median. | ||
2 findings · 1 study | ||||
| Pancakes, as soldDabeka et al. 2003 | Ottawa composite (retail Oct-Nov 2000)1998–2000 | sample value. | ||
| Pancakes, as soldDabeka et al. 2003 | Whitehorse composite (retail Jan-Feb 1998)1998–2000 | not detected. | ||
1 finding · 1 study | ||||
| Pancakes, frozenFDA Total Diet Study | 1 collection regions2018–2020 | median. | ||
1 finding · 1 study | ||||
| Pancakes, frozenFDA Total Diet Study | 1 collection regions2018–2020 | median. | ||
1 finding · 1 study | ||||
| Pancakes, frozenFDA Total Diet Study | 1 collection regions2018–2020 | median. | ||
1 finding · 1 study | ||||
| Pancakes, as soldTakanashi et al. 2018 | Pancake2015–2016Basis not stated | not detected. | ||
1 finding · 1 study | ||||
| Pancakes, frozenFDA Total Diet Study | 1 collection regions2018–2020 | median. | ||
Shared dataset methods and interpretation
Source summaries retain their original statistic, material, basis and censoring. Each source drawer identifies methods and overlapping samples. No matched reference or pooled distribution is inferred.
HMI pancakes Pb reference · Pancakes, as sold
Reference and scope
HMI pancakes Pb reference · Pancakes, as sold. Pancakes, as sold; As sold, as eaten or fresh weight, µg/kg; no moisture conversion. Distribution of subgroup median concentration values.
| Reference (µg/kg) | Q1 | Median | Q3 |
|---|---|---|---|
| Primary HMI reference | ≤3 | ≤10 | ≤1500 |
| Alternative weighting | ≤3 | ≤10 | ≤1500 |
6 reference units; 1 sampling family. Counts describe evidence units, not independent studies or certainty.
| Contributing family | Reference units | Weight |
|---|---|---|
| WHO GEMS/Food | 6 | 100% |
Methods
HMI pools subgroup medians for pancakes, as sold on a as sold, as eaten or fresh weight basis: monitoring results summarized as one median per reporting region, sampling type and collection year, total diet composites and printed sample values as single observations, and printed subgroup medians from ordinary farms or markets. Each sampling family has equal total weight. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations. Other forms, other bases, targeted sampling and results from mining, industrial, wastewater-affected, experimental, fertiliser or manufacturer settings are kept out of this reference.
Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1–Q3 spread are required. This is a display eligibility rule, not statistical validation.
Limitations
WHO GEMS/Food is the only compatible sampling family for pancakes, as sold on this basis in the completed pancakes ledger, so this single-family reference cannot represent other markets. Reporting regions and purchase markets are not growing areas. Non-detects with differing limits widen the bounds. A position is descriptive concentration, not a safety or compliance judgment.
Admitted source families
Reference version and interpretation
Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.
hmi-pooled-reference-v2:pancakes-d0b519aa435e:fd1d5ff5c1e5
The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.
HMI pancakes Pb reference · Pancakes, frozen
Reference and scope
HMI pancakes Pb reference · Pancakes, frozen. Pancakes, frozen; As sold, as eaten or fresh weight, µg/kg; no moisture conversion. Distribution of subgroup median concentration values.
| Reference (µg/kg) | Q1 | Median | Q3 |
|---|---|---|---|
| Primary HMI reference | ≤4 | ≤4 | ≤4 |
| Alternative weighting | ≤4 | ≤4 | ≤4 |
4 reference units; 2 sampling families. Counts describe evidence units, not independent studies or certainty.
| Contributing family | Reference units | Weight |
|---|---|---|
| FDA Total Diet Study | 3 | 50% |
| Spungen et al. 2024 | 1 | 50% |
Methods
HMI pools subgroup medians for pancakes, frozen on a as sold, as eaten or fresh weight basis: monitoring results summarized as one median per reporting region, sampling type and collection year, total diet composites and printed sample values as single observations, and printed subgroup medians from ordinary farms or markets. Each sampling family has equal total weight. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations. Other forms, other bases, targeted sampling and results from mining, industrial, wastewater-affected, experimental, fertiliser or manufacturer settings are kept out of this reference.
Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1–Q3 spread are required. This is a display eligibility rule, not statistical validation.
Limitations
2 sampling families with different designs; none is a probability sample of world supply. Reporting regions and purchase markets are not growing areas. Non-detects with differing limits widen the bounds. A position is descriptive concentration, not a safety or compliance judgment.
Admitted source families
Reference version and interpretation
Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.
hmi-pooled-reference-v2:pancakes-7357f5974d78:4827ed90f551
The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.
HMI pancakes Pb reference · Pancakes, cooked
Reference and scope
HMI pancakes Pb reference · Pancakes, cooked. Pancakes, cooked; As sold, as eaten or fresh weight, µg/kg; no moisture conversion. Distribution of subgroup median concentration values.
| Reference (µg/kg) | Q1 | Median | Q3 |
|---|---|---|---|
| Primary HMI reference | ≤10 | ≤10 | ≤10 |
| Alternative weighting | ≤10 | ≤10 | ≤10 |
1 reference units; 1 sampling family. Counts describe evidence units, not independent studies or certainty.
| Contributing family | Reference units | Weight |
|---|---|---|
| WHO GEMS/Food | 1 | 100% |
Methods
HMI pools subgroup medians for pancakes, cooked on a as sold, as eaten or fresh weight basis: monitoring results summarized as one median per reporting region, sampling type and collection year, total diet composites and printed sample values as single observations, and printed subgroup medians from ordinary farms or markets. Each sampling family has equal total weight. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations. Other forms, other bases, targeted sampling and results from mining, industrial, wastewater-affected, experimental, fertiliser or manufacturer settings are kept out of this reference.
Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1–Q3 spread are required. This is a display eligibility rule, not statistical validation.
Limitations
WHO GEMS/Food is the only compatible sampling family for pancakes, cooked on this basis in the completed pancakes ledger, so this single-family reference cannot represent other markets. Reporting regions and purchase markets are not growing areas. Non-detects with differing limits widen the bounds. A position is descriptive concentration, not a safety or compliance judgment.
Admitted source families
Reference version and interpretation
Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.
hmi-pooled-reference-v2:pancakes-cb0c2f9366b8:33fa4d3f16c5
The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.
HMI pancakes Cd reference · Pancakes, as sold
Reference and scope
HMI pancakes Cd reference · Pancakes, as sold. Pancakes, as sold; As sold, as eaten or fresh weight, µg/kg; no moisture conversion. Distribution of subgroup median concentration values.
| Reference (µg/kg) | Q1 | Median | Q3 |
|---|---|---|---|
| Primary HMI reference | 9.75 | 12.3 | 14 |
| Alternative weighting | 9.75 | 12.3 | 14 |
8 reference units; 1 sampling family. Counts describe evidence units, not independent studies or certainty.
| Contributing family | Reference units | Weight |
|---|---|---|
| WHO GEMS/Food | 8 | 100% |
Methods
HMI pools subgroup medians for pancakes, as sold on a as sold, as eaten or fresh weight basis: monitoring results summarized as one median per reporting region, sampling type and collection year, total diet composites and printed sample values as single observations, and printed subgroup medians from ordinary farms or markets. Each sampling family has equal total weight. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations. Other forms, other bases, targeted sampling and results from mining, industrial, wastewater-affected, experimental, fertiliser or manufacturer settings are kept out of this reference.
Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1–Q3 spread are required. This is a display eligibility rule, not statistical validation.
Limitations
WHO GEMS/Food is the only compatible sampling family for pancakes, as sold on this basis in the completed pancakes ledger, so this single-family reference cannot represent other markets. Reporting regions and purchase markets are not growing areas. Non-detects with differing limits widen the bounds. A position is descriptive concentration, not a safety or compliance judgment.
Admitted source families
Reference version and interpretation
Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.
hmi-pooled-reference-v2:pancakes-a96142162ccd:b1a5fae927e4
The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.
HMI pancakes Cd reference · Pancakes, frozen
Reference and scope
HMI pancakes Cd reference · Pancakes, frozen. Pancakes, frozen; As sold, as eaten or fresh weight, µg/kg; no moisture conversion. Distribution of subgroup median concentration values.
| Reference (µg/kg) | Q1 | Median | Q3 |
|---|---|---|---|
| Primary HMI reference | 12 | 12 | 16 |
| Alternative weighting | 12 | 12 | 16 |
3 reference units; 1 sampling family. Counts describe evidence units, not independent studies or certainty.
| Contributing family | Reference units | Weight |
|---|---|---|
| FDA Total Diet Study | 3 | 100% |
Methods
HMI pools subgroup medians for pancakes, frozen on a as sold, as eaten or fresh weight basis: monitoring results summarized as one median per reporting region, sampling type and collection year, total diet composites and printed sample values as single observations, and printed subgroup medians from ordinary farms or markets. Each sampling family has equal total weight. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations. Other forms, other bases, targeted sampling and results from mining, industrial, wastewater-affected, experimental, fertiliser or manufacturer settings are kept out of this reference.
Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1–Q3 spread are required. This is a display eligibility rule, not statistical validation.
Limitations
FDA Total Diet Study is the only compatible sampling family for pancakes, frozen on this basis in the completed pancakes ledger, so this single-family reference cannot represent other markets. Reporting regions and purchase markets are not growing areas. Non-detects with differing limits widen the bounds. A position is descriptive concentration, not a safety or compliance judgment.
Admitted source families
Reference version and interpretation
Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.
hmi-pooled-reference-v2:pancakes-f64fbc724853:464dc9973e5c
The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.
HMI pancakes Cd reference · Pancakes, cooked
Reference and scope
HMI pancakes Cd reference · Pancakes, cooked. Pancakes, cooked; As sold, as eaten or fresh weight, µg/kg; no moisture conversion. Distribution of subgroup median concentration values.
| Reference (µg/kg) | Q1 | Median | Q3 |
|---|---|---|---|
| Primary HMI reference | ≤3 | ≤5.4 | 5.4–10 (bounded) |
| Alternative weighting | ≤3 | ≤5.4 | 5.4–10 (bounded) |
3 reference units; 1 sampling family. Counts describe evidence units, not independent studies or certainty.
| Contributing family | Reference units | Weight |
|---|---|---|
| WHO GEMS/Food | 3 | 100% |
Methods
HMI pools subgroup medians for pancakes, cooked on a as sold, as eaten or fresh weight basis: monitoring results summarized as one median per reporting region, sampling type and collection year, total diet composites and printed sample values as single observations, and printed subgroup medians from ordinary farms or markets. Each sampling family has equal total weight. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations. Other forms, other bases, targeted sampling and results from mining, industrial, wastewater-affected, experimental, fertiliser or manufacturer settings are kept out of this reference.
Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1–Q3 spread are required. This is a display eligibility rule, not statistical validation.
Limitations
WHO GEMS/Food is the only compatible sampling family for pancakes, cooked on this basis in the completed pancakes ledger, so this single-family reference cannot represent other markets. Reporting regions and purchase markets are not growing areas. Non-detects with differing limits widen the bounds. A position is descriptive concentration, not a safety or compliance judgment.
Admitted source families
Reference version and interpretation
Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.
hmi-pooled-reference-v2:pancakes-e2e2e3e11940:f80fff7bd8c5
The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.
HMI pancakes tAs reference · Pancakes, as sold
Reference and scope
HMI pancakes tAs reference · Pancakes, as sold. Pancakes, as sold; As sold, as eaten or fresh weight, µg/kg; no moisture conversion. Distribution of subgroup median concentration values.
| Reference (µg/kg) | Q1 | Median | Q3 |
|---|---|---|---|
| Primary HMI reference | ≤50 | ≤50 | ≤50 |
| Alternative weighting | ≤50 | ≤50 | ≤50 |
1 reference units; 1 sampling family. Counts describe evidence units, not independent studies or certainty.
| Contributing family | Reference units | Weight |
|---|---|---|
| WHO GEMS/Food | 1 | 100% |
Methods
HMI pools subgroup medians for pancakes, as sold on a as sold, as eaten or fresh weight basis: monitoring results summarized as one median per reporting region, sampling type and collection year, total diet composites and printed sample values as single observations, and printed subgroup medians from ordinary farms or markets. Each sampling family has equal total weight. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations. Other forms, other bases, targeted sampling and results from mining, industrial, wastewater-affected, experimental, fertiliser or manufacturer settings are kept out of this reference.
Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1–Q3 spread are required. This is a display eligibility rule, not statistical validation.
Limitations
WHO GEMS/Food is the only compatible sampling family for pancakes, as sold on this basis in the completed pancakes ledger, so this single-family reference cannot represent other markets. Reporting regions and purchase markets are not growing areas. Non-detects with differing limits widen the bounds. A position is descriptive concentration, not a safety or compliance judgment.
Admitted source families
Reference version and interpretation
Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.
hmi-pooled-reference-v2:pancakes-8927e3216875:269e26ba0848
The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.
HMI pancakes tAs reference · Pancakes, frozen
Reference and scope
HMI pancakes tAs reference · Pancakes, frozen. Pancakes, frozen; As sold, as eaten or fresh weight, µg/kg; no moisture conversion. Distribution of subgroup median concentration values.
| Reference (µg/kg) | Q1 | Median | Q3 |
|---|---|---|---|
| Primary HMI reference | ≤3 | ≤3 | 4.2 |
| Alternative weighting | ≤3 | ≤3 | 4.2 |
3 reference units; 1 sampling family. Counts describe evidence units, not independent studies or certainty.
| Contributing family | Reference units | Weight |
|---|---|---|
| FDA Total Diet Study | 3 | 100% |
Methods
HMI pools subgroup medians for pancakes, frozen on a as sold, as eaten or fresh weight basis: monitoring results summarized as one median per reporting region, sampling type and collection year, total diet composites and printed sample values as single observations, and printed subgroup medians from ordinary farms or markets. Each sampling family has equal total weight. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations. Other forms, other bases, targeted sampling and results from mining, industrial, wastewater-affected, experimental, fertiliser or manufacturer settings are kept out of this reference.
Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1–Q3 spread are required. This is a display eligibility rule, not statistical validation.
Limitations
FDA Total Diet Study is the only compatible sampling family for pancakes, frozen on this basis in the completed pancakes ledger, so this single-family reference cannot represent other markets. Reporting regions and purchase markets are not growing areas. Non-detects with differing limits widen the bounds. A position is descriptive concentration, not a safety or compliance judgment.
Admitted source families
Reference version and interpretation
Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.
hmi-pooled-reference-v2:pancakes-3c8545a85224:7dafea24dd39
The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.
HMI pancakes tAs reference · Pancakes, cooked
Reference and scope
HMI pancakes tAs reference · Pancakes, cooked. Pancakes, cooked; As sold, as eaten or fresh weight, µg/kg; no moisture conversion. Distribution of subgroup median concentration values.
| Reference (µg/kg) | Q1 | Median | Q3 |
|---|---|---|---|
| Primary HMI reference | 20.9 | 21.6 | 22.3 |
| Alternative weighting | 20.9 | 21.6 | 22.3 |
2 reference units; 1 sampling family. Counts describe evidence units, not independent studies or certainty.
| Contributing family | Reference units | Weight |
|---|---|---|
| WHO GEMS/Food | 2 | 100% |
Methods
HMI pools subgroup medians for pancakes, cooked on a as sold, as eaten or fresh weight basis: monitoring results summarized as one median per reporting region, sampling type and collection year, total diet composites and printed sample values as single observations, and printed subgroup medians from ordinary farms or markets. Each sampling family has equal total weight. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations. Other forms, other bases, targeted sampling and results from mining, industrial, wastewater-affected, experimental, fertiliser or manufacturer settings are kept out of this reference.
Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1–Q3 spread are required. This is a display eligibility rule, not statistical validation.
Limitations
WHO GEMS/Food is the only compatible sampling family for pancakes, cooked on this basis in the completed pancakes ledger, so this single-family reference cannot represent other markets. Reporting regions and purchase markets are not growing areas. Non-detects with differing limits widen the bounds. A position is descriptive concentration, not a safety or compliance judgment.
Admitted source families
Reference version and interpretation
Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.
hmi-pooled-reference-v2:pancakes-1b3f600fb9c8:af626aaa4de7
The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.
HMI pancakes tHg reference · Pancakes, as sold
Reference and scope
HMI pancakes tHg reference · Pancakes, as sold. Pancakes, as sold; As sold, as eaten or fresh weight, µg/kg; no moisture conversion. Distribution of subgroup median concentration values.
| Reference (µg/kg) | Q1 | Median | Q3 |
|---|---|---|---|
| Primary HMI reference | ≤0.35 | 0.225–0.4 (bounded) | 0.45 |
| Alternative weighting | ≤0.35 | 0.225–0.4 (bounded) | 0.45 |
2 reference units; 1 sampling family. Counts describe evidence units, not independent studies or certainty.
| Contributing family | Reference units | Weight |
|---|---|---|
| Dabeka et al. 2003 | 2 | 100% |
Methods
HMI pools subgroup medians for pancakes, as sold on a as sold, as eaten or fresh weight basis: monitoring results summarized as one median per reporting region, sampling type and collection year, total diet composites and printed sample values as single observations, and printed subgroup medians from ordinary farms or markets. Each sampling family has equal total weight. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations. Other forms, other bases, targeted sampling and results from mining, industrial, wastewater-affected, experimental, fertiliser or manufacturer settings are kept out of this reference.
Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1–Q3 spread are required. This is a display eligibility rule, not statistical validation.
Limitations
Dabeka et al. 2003 is the only compatible sampling family for pancakes, as sold on this basis in the completed pancakes ledger, so this single-family reference cannot represent other markets. Reporting regions and purchase markets are not growing areas. Non-detects with differing limits widen the bounds. A position is descriptive concentration, not a safety or compliance judgment.
Admitted source families
Reference version and interpretation
Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.
hmi-pooled-reference-v2:pancakes-3b744dd604a2:98978569249a
The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.
HMI pancakes tHg reference · Pancakes, frozen
Reference and scope
HMI pancakes tHg reference · Pancakes, frozen. Pancakes, frozen; As sold, as eaten or fresh weight, µg/kg; no moisture conversion. Distribution of subgroup median concentration values.
| Reference (µg/kg) | Q1 | Median | Q3 |
|---|---|---|---|
| Primary HMI reference | ≤1 | ≤1 | ≤1 |
| Alternative weighting | ≤1 | ≤1 | ≤1 |
3 reference units; 1 sampling family. Counts describe evidence units, not independent studies or certainty.
| Contributing family | Reference units | Weight |
|---|---|---|
| FDA Total Diet Study | 3 | 100% |
Methods
HMI pools subgroup medians for pancakes, frozen on a as sold, as eaten or fresh weight basis: monitoring results summarized as one median per reporting region, sampling type and collection year, total diet composites and printed sample values as single observations, and printed subgroup medians from ordinary farms or markets. Each sampling family has equal total weight. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations. Other forms, other bases, targeted sampling and results from mining, industrial, wastewater-affected, experimental, fertiliser or manufacturer settings are kept out of this reference.
Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1–Q3 spread are required. This is a display eligibility rule, not statistical validation.
Limitations
FDA Total Diet Study is the only compatible sampling family for pancakes, frozen on this basis in the completed pancakes ledger, so this single-family reference cannot represent other markets. Reporting regions and purchase markets are not growing areas. Non-detects with differing limits widen the bounds. A position is descriptive concentration, not a safety or compliance judgment.
Admitted source families
Reference version and interpretation
Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.
hmi-pooled-reference-v2:pancakes-4ebf3ce1b1d2:5cb9842d269e
The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.
HMI pancakes Ni reference · Pancakes, frozen
Reference and scope
HMI pancakes Ni reference · Pancakes, frozen. Pancakes, frozen; As sold, as eaten or fresh weight, µg/kg; no moisture conversion. Distribution of subgroup median concentration values.
| Reference (µg/kg) | Q1 | Median | Q3 |
|---|---|---|---|
| Primary HMI reference | ≤40 | ≤40 | 51 |
| Alternative weighting | ≤40 | ≤40 | 51 |
3 reference units; 1 sampling family. Counts describe evidence units, not independent studies or certainty.
| Contributing family | Reference units | Weight |
|---|---|---|
| FDA Total Diet Study | 3 | 100% |
Methods
HMI pools subgroup medians for pancakes, frozen on a as sold, as eaten or fresh weight basis: monitoring results summarized as one median per reporting region, sampling type and collection year, total diet composites and printed sample values as single observations, and printed subgroup medians from ordinary farms or markets. Each sampling family has equal total weight. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations. Other forms, other bases, targeted sampling and results from mining, industrial, wastewater-affected, experimental, fertiliser or manufacturer settings are kept out of this reference.
Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1–Q3 spread are required. This is a display eligibility rule, not statistical validation.
Limitations
FDA Total Diet Study is the only compatible sampling family for pancakes, frozen on this basis in the completed pancakes ledger, so this single-family reference cannot represent other markets. Reporting regions and purchase markets are not growing areas. Non-detects with differing limits widen the bounds. A position is descriptive concentration, not a safety or compliance judgment.
Admitted source families
Reference version and interpretation
Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.
hmi-pooled-reference-v2:pancakes-aa1313684fb0:ee4c86c9a07d
The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.
HMI pancakes Cr reference · Pancakes, frozen
Reference and scope
HMI pancakes Cr reference · Pancakes, frozen. Pancakes, frozen; As sold, as eaten or fresh weight, µg/kg; no moisture conversion. Distribution of subgroup median concentration values.
| Reference (µg/kg) | Q1 | Median | Q3 |
|---|---|---|---|
| Primary HMI reference | ≤50 | ≤50 | ≤50 |
| Alternative weighting | ≤50 | ≤50 | ≤50 |
3 reference units; 1 sampling family. Counts describe evidence units, not independent studies or certainty.
| Contributing family | Reference units | Weight |
|---|---|---|
| FDA Total Diet Study | 3 | 100% |
Methods
HMI pools subgroup medians for pancakes, frozen on a as sold, as eaten or fresh weight basis: monitoring results summarized as one median per reporting region, sampling type and collection year, total diet composites and printed sample values as single observations, and printed subgroup medians from ordinary farms or markets. Each sampling family has equal total weight. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations. Other forms, other bases, targeted sampling and results from mining, industrial, wastewater-affected, experimental, fertiliser or manufacturer settings are kept out of this reference.
Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1–Q3 spread are required. This is a display eligibility rule, not statistical validation.
Limitations
FDA Total Diet Study is the only compatible sampling family for pancakes, frozen on this basis in the completed pancakes ledger, so this single-family reference cannot represent other markets. Reporting regions and purchase markets are not growing areas. Non-detects with differing limits widen the bounds. A position is descriptive concentration, not a safety or compliance judgment.
Admitted source families
Reference version and interpretation
Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.
hmi-pooled-reference-v2:pancakes-83f95e0870de:aacc92134128
The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.
HMI pancakes U reference · Pancakes, frozen
Reference and scope
HMI pancakes U reference · Pancakes, frozen. Pancakes, frozen; As sold, as eaten or fresh weight, µg/kg; no moisture conversion. Distribution of subgroup median concentration values.
| Reference (µg/kg) | Q1 | Median | Q3 |
|---|---|---|---|
| Primary HMI reference | ≤1 | 1.7 | 2.6 |
| Alternative weighting | ≤1 | 1.7 | 2.6 |
3 reference units; 1 sampling family. Counts describe evidence units, not independent studies or certainty.
| Contributing family | Reference units | Weight |
|---|---|---|
| FDA Total Diet Study | 3 | 100% |
Methods
HMI pools subgroup medians for pancakes, frozen on a as sold, as eaten or fresh weight basis: monitoring results summarized as one median per reporting region, sampling type and collection year, total diet composites and printed sample values as single observations, and printed subgroup medians from ordinary farms or markets. Each sampling family has equal total weight. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations. Other forms, other bases, targeted sampling and results from mining, industrial, wastewater-affected, experimental, fertiliser or manufacturer settings are kept out of this reference.
Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1–Q3 spread are required. This is a display eligibility rule, not statistical validation.
Limitations
FDA Total Diet Study is the only compatible sampling family for pancakes, frozen on this basis in the completed pancakes ledger, so this single-family reference cannot represent other markets. Reporting regions and purchase markets are not growing areas. Non-detects with differing limits widen the bounds. A position is descriptive concentration, not a safety or compliance judgment.
Admitted source families
Reference version and interpretation
Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.
hmi-pooled-reference-v2:pancakes-1c06ca99ebf8:f4fecf4d5982
The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.
The result is below a reporting limit, and the range from zero to that limit crosses more than one band.
The HMI reference for this form has fewer than four units or no measurable spread, below the display minimum.
The result is on a basis (dry weight, or not stated) that no HMI reference for this form uses, so it cannot be placed.
No findings match these filters. Change the selection or reset to show all source findings.
How metals reach pancakes
No study in the library compared pancakes from contaminated and ordinary settings, so the routes by which metals reach it are not measured here.
Which forms and regions measured lower
The HMI reference for lead in pancakes, frozen pools 4 subgroup units from 2 sampling families, with a median of below 4 µg/kg and a middle half spanning below 4 (lower quartile) and below 4 µg/kg (upper quartile).2FY2018-FY2020 TDS Elements Analytical ResultsFDA Total Diet StudyRead source →4Infants’ and young children’s dietary exposures to lead and cadmium: FDA total diet study 2018-2020Food Additives & Contaminants: Part ARead source → For lead in pancakes, as sold, the reference median was below 10 µg/kg, with a middle half from below 3 to below 1,500 µg/kg across 6 units.1GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source → For cadmium in pancakes, as sold, the reference median was 12.3 µg/kg, with a middle half from 9.75 to 14 µg/kg across 8 units.1GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →
Among GEMS/Food reporting regions, pancakes, as sold had the lowest cadmium subgroup median in PAHO (12 µg/kg) and the highest in EMRO (21 µg/kg); reporting regions are markets, not growing areas.1GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →
Processing, cooking and preparation
No study in the library measured the same pancakes before and after washing, peeling, drying or cooking for metals, so no processing effect can be stated. Heat does not destroy metals; cooking or drying changes a concentration by moving water or metal, not by removing the element.
Mitigation for pancakes
No control for metals in pancakes was measured in the library; lot testing against the applicable limit remains the verifiable step.
No study in this library has yet measured a way to lower heavy metals in pancakes; the results above show the levels measured, and lot testing against the applicable limit remains the verifiable check.
Trade-offs and limits of controls
Metals do not move together, so a lot that passes a lead limit says little about cadmium, arsenic or nickel unless those are tested as well.
Testing pancakes for metals
Results depend on the method and its reporting limit. Reporting limits for lead ranged from 4 µg/kg (FDA Total Diet Study) to 3,000 µg/kg (WHO GEMS/Food), so a non-detect from a less sensitive method says much less.1GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →2FY2018-FY2020 TDS Elements Analytical ResultsFDA Total Diet StudyRead source → Reporting limits for cadmium ranged from 1 µg/kg (FDA Total Diet Study) to 12 µg/kg (WHO GEMS/Food), so a non-detect from a less sensitive method says much less.1GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →2FY2018-FY2020 TDS Elements Analytical ResultsFDA Total Diet StudyRead source → Reporting limits for total arsenic ranged from 3 µg/kg (FDA Total Diet Study) to 50 µg/kg (WHO GEMS/Food), so a non-detect from a less sensitive method says much less.1GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →2FY2018-FY2020 TDS Elements Analytical ResultsFDA Total Diet StudyRead source →
A useful lot result names the form, the basis and a quantification limit well below the limit that applies.
Buying and verifying pancakes
No maximum level for metals in pancakes was verified from primary text for this page; buyers should confirm the limit that applies in the destination market.
Exposure from pancakes
No source in the library converted pancakes concentrations into a verified estimate of intake for a defined population. Concentrations describe the food, not individual risk.
Evidence review and remaining gaps
Every source record that names pancakes was decided on its content: 6 occurrence extracted, 6 records in all. The occurrence table renders every extracted result; held values remain visible with their reason.
References identify the sources used in these answers. The Sources index preserves additional discovery links; inclusion there does not mean a source has been reviewed for this assessment. Corrections, completed searches, new direct evidence and changes in requirements should reopen the relevant answer.
Pancakes FAQs
What heavy metals are found in pancakes?
The library reports lead, cadmium, total arsenic, total mercury, nickel, chromium, aluminium and uranium in pancakes, most often lead, cadmium and total arsenic.1GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →2FY2018-FY2020 TDS Elements Analytical ResultsFDA Total Diet StudyRead source →3Assessment of cadmium and lead concentrations in different types of cosmetics products consumed in IranNational Journal of Physiology, Pharmacy and Pharmacology 8(8):1200-1204Read source →4Infants’ and young children’s dietary exposures to lead and cadmium: FDA total diet study 2018-2020Food Additives & Contaminants: Part ARead source → WHO GEMS/Food submissions reported lead in pancakes, as sold from 26 results in 1 reporting region, with subgroup medians below 10 µg/kg, mostly non-detects.1GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →
Which regions report the lowest levels in pancakes?
Among GEMS/Food reporting regions, pancakes, as sold had the lowest cadmium subgroup median in PAHO (12 µg/kg) and the highest in EMRO (21 µg/kg); reporting regions are markets, not growing areas.1GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →
References
Works cited on this page, in citation-number order. See Sources for this page’s source inventory. Each title links to a source record with bibliographic details, reported findings, and document provenance.
- GEMS/Food Contaminants database heavy-metal exportsDataset
- FY2018-FY2020 TDS Elements Analytical ResultsDataset
- Assessment of cadmium and lead concentrations in different types of cosmetics products consumed in IranPeer-reviewed
- Infants’ and young children’s dietary exposures to lead and cadmium: FDA total diet study 2018-2020Peer-reviewed
- Survey of total mercury in total diet food composites and an estimation of the dietary intake of mercury by adults and children from two Canadian cities, 1998-2000Peer-reviewed
- Survey of Aluminium Content of Processed Food Using Baking Powder (2015–2016)Peer-reviewed
Sources
Browse Pancakes Sources for sources cited on this page and additional discovery candidates. The searchable index distinguishes verified citation use from discovery relationships whose relevance has not been established.
Update history
22 October 2026: Rebuilt from every pancakes record in the library: 6 occurrence sources, references by form and basis, same-study contrasts.
