Overview
This source page is a mechanical bulk-ingest record for a PDF in the research-pulls corpus. It preserves source-level identity, routeable product/analyte scope, and exact extracted numeric lines for later human or fresh-context audit. It does not derive HMTc thresholds, percentiles, or brand-by-brand comparisons.
Key numbers
The worker extracted the full PDF text with layout preservation twice and compared extraction hashes before commit. The following lines are copied from numeric/table-bearing regions of the PDF and retain the source units and wording where legible:
- Many agencies recommend air sampling (Table 1), specifically for volatile organic
- spectroscopy (GC/MS). A limit of detection (LOD) of 0.05 μg/sample was
- μg/sample was achieved in scan mode. The LOD was 0.07 μg/wipe, and the limit
- of quantitation (LOQ) was 0.22 μg/wipe for methamphetamine (25).
- methamphetamine wipe samples. The LOD was 0.05 μg/sample and the LOQ
- (>90%). Flat painted drywall has acceptable recovery (51%). However, fabric showed only a
- which were analyzed by EPA Method 8270 for semivolatile organic chemicals. Overall, 59%
- • Anhydrous ammonia concentrations ranged from 4 to 3,348 parts per million
- (ppm). As time weighted averages, the concentrations ranged from 130 ppm to
- • Anhydrous ammonia concentrations ranged from < 66 to 410 ppm.
- • Total airborne methamphetamine concentrations ranged from 99 to 760 μg/m3.
- The concentrations ranged from 0.03 to 771 μg/100 cm2 (42). VanDyke et al. quantified
- • Total airborne methamphetamine concentrations ranged from 70 to 210 μg/m3.
- • Night stand: 5,600%
- • Microwave: 4,800%
- states also have standards for VOCs in air (less than 1 ppm), pH on surfaces (6–8), lead on
- (range: 0.01–59 μg/100 cm2) (42). The department stated that additional decontamination is
- deposition, and could recover at least 50 – 60% of the methamphetamine still present after 2
- concentrations ranged from 0.1 to 37 μg/100 cm2. Washing the different surfaces
- on drywall ranged from 15.3 to 20.2 μg/100 cm2. Washing with different
- concentrations on plywood and drywall panels ranged from 16.4 to 34.6 μg/100
- decontaminated. The original mean concentrations were 5.2 μg/100 cm2 (washed
- 2.5 and 5.5 μg/100 cm2, respectively. In a second experiment, the original mean
- • Pre-cleaning methamphetamine concentrations ranged from 273 to 1,487 μg/ft2
- • Post-cleaning methamphetamine concentrations ranged from 23.8 to 196.5 μg/ft2
- methamphetamine concentrations ranged from < 0.02 to 32.22 μg/100 cm2. All
- concentrations ranged from < 0.02 to 5.29 μg/100 cm2. All samples were less
- • Case study #3. Prior to treatment, methamphetamine concentrations ranged from
-
- and more than half of the contact point wipe samples (58% at Site 1, 100% at Site 2, and
- 63% at Site 3) exceeded the state of Washington standard. The authors concluded that all
- • EasyDECON (hydrogen peroxide/quaternary ammonia complex) was 100%
- • Clorox Clean-Up (hypochlorite solution) was the least effective (57–64%
- easily cleaned using a single washing with the detergent (100% reduction). Surfaces that
- were more porous (plywood and drywall) were not as easily cleaned. More than 50% of the
- washes were able to remove another 30%, indicating a maximum reduction of
- approximately 80% for porous materials (29). NJMRC determined the decontamination
- methamphetamine. A 100% reduction was observed for both. Almost all the
- there was still 100% reduction on the painted plywood.
- methamphetamine. An 80% reduction was observed.
- to 80% over time (18). The Agency for Toxic Substances and Disease Registry (ATSDR)
- three times with household cleaning products will reduce meth lab contamination by 80%
- concentrations in the denim and cotton were reduced by 95% after a single wash and
Methods (brief)
- through an analysis of routinely collected data sources. There were numerous peer reviewed
- • Collect available information relating to the methods used to sample, identify,
- identifying documents with relevant information, all pertinent information was collected and
- • Having the samples quantified by a certified laboratory.
- sampled at sites where the P2P method was used to produce methamphetamine.
- In several NJMRC studies, air samples were collected for VOCs, general hydrocarbons,
- • Airborne methamphetamine, iodine, and inorganic acid samples were collected
- • VOCs were collected using SUMMA canisters.
- • Hydrocarbons were collected using vacuum canister collection and thermal
- • Metal samples were collected using 37 mm sampling cassettes and 0.8 mm
- A certified lab analyzed the NJMRC samples using the following methods:
- method was used. Both discrete and composite samples are used. Wipe samples can be
- collected from nonporous surfaces, including floors, walls, ceilings, fixtures, furniture,
- methanol for a methamphetamine sample, to enhance collection efficiency. Agencies
- Some agencies also recommend collecting vacuum samples from carpets, upholstered
- sampling by submitting wipe samples with known concentrations of methamphetamine to
- • Developing a proficiency testing sample.
- gauze wipe samples. Backup Data Reports are provided (24-26).
Implications
This page makes the source discoverable for category-level evidence routing. Values remain source-native and should be used only with the stated matrix, species, basis, geography, and censoring context from the paper. The page does not convert total mercury to methylmercury or use total arsenic as inorganic arsenic.
Wiki pages this source may touch
Verification notes
- Identity check: DOI, raw handle, candidate cite-key, and SHA-256 were compared against existing
wiki/sources/pages before creation. - Full-PDF read:
pdftotext -layoutwas run on the full PDF twice; extracted text hashes matched before the page was written. - Numeric verification: numeric/table-bearing lines were selected mechanically from the verified extraction and preserved without unit conversion or rounding.
- Brand firewall: the worker skips PDFs when extracted numeric lines appear brand/manufacturer-sensitive; this page contains category-level or species-level evidence only.
- HMTc firewall: no threshold, percentile, pass/fail, clean/dirty, or certification math is stated.
Update history
The five most recent substantive edits to this page, classified major (evidence or structure moved), correction (a published value or statement was wrong and has been fixed), or minor (narrative rewritten without changing the underlying evidence). Each description is derived from what the edit did to this page; the linked commit is the authoritative record, routine regeneration passes are excluded, and the full version history lives in git. When DOI minting comes online (see schema docs), each entry below will also link to a version-pinned DataCite DOI.