Schinus molle L. using organic amendments to the phytoremediation of total chromium in the mid-zone

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:

• Rodríguez-Salazar, O.; Tupayachy- the species studied all exceeded 30%. The samples without compost showed a lower percentage of
• The Buddleja species demonstrated a 39.01% chromium bioaccumulation with compost compared to
• 37.99% without it. Likewise, Schinus molle L. achieved 33.99% chromium accumulation with compost
• and 31.84% without it. These findings emphasize the superior ability of these species to bioaccumulate
• materials (1). The considerable demand has led to a notable increase in the generation of
• of 1 t of processed leather requires 500 kg of chemical inputs, of which 85% are directly
• the environmental impact of production (5). However, only 50% of the leather produced
• nationally comes from formal companies, with the remaining 50% resulting from informal
• Table 1 presents the laboratory results of the physicochemical parameter analysis of
• Table 1. Physicochemical parameters of soil.
• Concentration of Total Chromium 2323 mg/kg
• Organic Matter 0.17 %
• Wilting Point 1.88 %
• tration in the soil was quantified at 2323 mg/kg. This value significantly exceeds the
• 400 mg/kg for Category 2 (Residential/Park Soil) and 1000 mg/kg for Category 3 (Com-
• The field capacity was 9.20%, the wilting point was 1.88%, and the irrigation require-
• The initial pH of the sample was 7.3, which falls within the neutral range. At the end
• range, Cr (III) adsorption is above 60% (15).
• The initial pH of the sample was 7.3, which falls within the neutral range. At the end
• conductivity ranged from 4.46 mmho/cm to 5.78 mmho/cm and was classified as slightly
• was in the range of 0.67 mmho/cm to 1.79 mmho/cm and considered non-saline and
• this pH range, Cr (III) adsorption is above 60% (15).
• cal conductivity ranged from 4.46 mmho/cm to 5.78 mmho/cm and was classified as
• molle L. was in the range of 0.67 mmho/cm to 1.79 mmho/cm and considered non-saline
• a value of 45.1%, soil samples
• Table 2. Analysis of variance (ANOVA) for pH and conductivity.
• Table 2. Analysis of variance (ANOVA) for pH and conductivity.
• on soil conductivity, and as for eta squared, it had a value of 98.3%, which is an extremely
• Finally, according to Table 5, it can be seen that the significance value of the ‘Species’
• Table 6 shows the concentration of the contaminated soil analyzed at 60, 120, and
• was determined that the values found at 60 days for the Buddleja species were 2217 mg/kg
• 1784.44 mg/kg to 1042.89 mg/kg over 90 days. Additionally, it should be noted that
• of over 80% in heavy metals such as antimony, arsenic, cadmium, copper, silver, and lead.
• Similarly, Schinus molle L. exhibited reduction percentages of up to 67.8% for heavy metals
• Table 6. Total chromium concentration in soil samples with and without compost.
• accumulate up to 3675 mg/kg of lead (Pb) in their shoots over 6 months, i.e., 180 days.
• According to Table 7, the significance value of the ‘Concentration*Species’ interaction
• that differences between species explain 6% of the total variability in the soil chromium
• Table 7. Analysis of variance (ANOVA) for interactions between total chromium concentration and
• Table 8. Total chromium concentration in plants with and without compost.
• exceeded 30%,indicating
• techniques. The highest value was for the Buddleja species, with 39.01% bioaccumulation

Methods (brief)

• morphological changes in plants with and without organic matter. Samples of the Buddleja species
• Rodríguez-Salazar, O.; Tupayachy- the species studied all exceeded 30%. The samples without compost showed a lower percentage of
• Quispe, D.; Romero-Mariscal, G.; total chromium bioaccumulation in plants compared to the samples with the organic amendment.
• eters of soil samples from this section of the ravine at the beginning, during, and at the end
• mixed, and a single representative sample per sample per sampling point was obtained. Soil samples
• point, and these samples were homogenized
• obtain representative samplesample per per sampling
• A sample of of approximately
• kg of soil was collected from the sampling point, point, and
• laboratory for initial analysis. Then, the samplessamples were
• The studied population consisted of two plant species,nursery. The sample includedspecies
• molle L, which were germinated in a nursery. The sample included 26 seedlings of the were used in the experimental
• The samples comprised
• samples to beto be analyzed,
• was determined by oven-drying samples at 105 ◦ C, while soil texture was classified by the
• 2.4. Evaluation of the Total Chromium Concentration in Soil Samples
• sample extracted from the sampling point. Subsequently, representative samples were
• Acid Digestion of Sediments, Sludges, and Soils, which is a protocol aimed at determining

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

• Fish — marine, non-predatory (sardines, anchovies, salmon, cod)
• Cadmium
• Lead
• Arsenic
• Chromium

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 -layout was 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.