Lead Extraction Using Three Soil Fertility Tests and Environmental Protection Agency Method 3050

Hamel, Stephanie C.; Heckman, Joseph R.; Shilke‐Gartley, Karen L.; Hoskins, Bruce R.

doi:10.1081/css-120025211

Cited by 9 publications

(15 citation statements)

References 16 publications

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“…Conversely, MM extracted Pb with the least efficiency, but provided the most reliable estimate of total Pb of the three methods tested by Hamel et al (2003). In our study, excluding the industrial-site soils, MM extracted a much smaller fraction of total Pb than measured by Hamel et al (2003), and the r 2 for the correlation of MM-Pb to total Pb was only 0.302, clearly too low for using MM extraction to predict soil total Pb.…”

Section: Resultscontrasting

confidence: 64%

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Chemical Extractability of Lead in Field-Contaminated Soils: Implications for Estimating Total Lead

McBride

Mathur

Baker

2011

Communications in Soil Science and Plant Analysis

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Lead (Pb) is frequently present in urban soils at concentrations of concern for human health. Regulations for this metal are based on total soil concentrations as determined by acid digestion, but a less expensive screening test for Pb would be useful in facilitating more thorough soil testing of urban areas if it could be shown to correlate strongly to total soil Pb. In this study, three extractants (0.1 M citrate, Modified Morgan, 1 M nitric acid) were evaluated for their ability to estimate the total Pb in contaminated soils. Nitric acid not only extracted a greater fraction of total soil Pb, but also produced the strongest correlation to total Pb and is concluded to be the superior extractant for a soil Pb screening test. As the spatial distribution of Pb was observed in selected soils to be highly heterogeneous on the micron scale, thorough soil homogenization prior to testing is recommended.

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Section: Resultscontrasting

confidence: 64%

“…A study by Hamel et al (2003) is highly relevant to the present evaluation of soil tests for Pb. That study compared three extraction methods, Modified Morgan (MM), Mehlich-1 (M1) and Mehlich-3 (M3), for their ability to estimate total soil Pb as determined by EPA Method 3050.…”

Section: Resultsmentioning

confidence: 99%

Chemical Extractability of Lead in Field-Contaminated Soils: Implications for Estimating Total Lead

McBride

Mathur

Baker

2011

Communications in Soil Science and Plant Analysis

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“…However, over all soil Pb concentrations, the extractability of Pb for the unamended soils averaged 3.28%, substantially higher than the 1.61% measured for the compost-amended soils. The average efficiency of extraction of the compost-amended soils by MM is also substantially lower than that reported by McBride et al (2011) and Hamel et al (2003) for Pb-contaminated soils having various sources of contamination. In fact, unamended soils collected earlier from the same orchard site used in this study had an average efficiency of Pb extraction by MM of 5.3%, somewhat higher than the 3.28% reported here for unamended orchard soil, and much higher than that measured here for the compost-amended soils..…”

Section: Resultscontrasting

confidence: 62%

Extractability and bioavailability of Pb and As in historically contaminated orchard soil: Effects of compost amendments

Fleming

Tai

Zhuang

et al. 2013

Environmental Pollution

102

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The availability of Pb and As in an historically contaminated orchard soil, after amendment with compost and aging in the field, was determined by single-step chemical extraction with 1.0 M ammonium acetate at pH 4.8, sequential extraction using the modified BCR test, and a redworm bioassay in the laboratory. The efficiency of soil Pb extraction by ammonium acetate was greater at higher total soil Pb but was reduced by compost amendment. Conversely, the extraction efficiency of total soil As increased with compost amendment, but was not sensitive to total soil As. The redworm bioassay indicated Pb (but not As) bioavailability to be reduced by soil amendment with compost, a result consistent with the ammonium acetate extraction test but not reflected in modified BCR test. Electron microprobe studies of the orchard soil revealed Pb and As to be spatially associated in discrete particles along with phosphorus and iron.

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“…In all cases, the high variability of metals in soil analysis did not show a uniform and statistically significant increase in metal concentration vs. rate of biosolids applied. Due to the relatively low metal concentrations of the biosolids (Table 1), low application rates and metal loading relative to background metal concentrations, and operational difficulty in thoroughly mixing biosolids with soil such small changes in biosolid-amended soils compared to the control soil are not completely unexpected (Hamel et al 2003). The treatment that best followed the predicted increase in soil As was the 10 Mg ha −1 application rate; all other treatments resulted in a lower observed change than expected except in the case of Cd (Table 2).…”

Section: Addition Of Trace Metals To Soilmentioning

confidence: 94%

“…It has been noted in other studies that EPA 3051 sometimes does not extract all of total soil Pb (Hamel et al 2003).…”

Section: Addition Of Trace Metals To Soilmentioning

confidence: 96%

The Impact of Biosolid Application on Soil and Native Plants in a Degraded Brazilian Atlantic Rainforest Soil

Sampaio

Guerrini

Otero

et al. 2015

Water Air Soil Pollut

101

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We conducted a field experiment to determine whether application of biosolids (municipal sewage sludge) to degraded areas of the Brazilian Atlantic rainforest had the potential to contaminate native forest species with trace metals in the sandy soils of the region. Treatments consisted of 0, 2.5, 5, 10, 15, and 20 dry Mg biosolids ha −1 , with nine native pioneer, secondary, and climax tree species assessed for metal uptake: capixingui, aroeira-pimenteria, canafístula, cedro-rosa, mutamba, angico-vermelho, copaíba, jatobá, and jequitibá. Biosolid application did not have a statistically significant effect on metal concentrations in soil, and Cd was the only metal with increased availability. No increased metal uptake was seen in tree foliage sampled at 6 and 12 months after application. Additional longerterm study is recommended; however, the results of this study indicate biosolids could be used in Atlantic rainforest reclamation in degraded sandy soils with little impact on soil accumulation and tree uptake of trace metals.

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Lead Extraction Using Three Soil Fertility Tests and Environmental Protection Agency Method 3050

Cited by 9 publications

References 16 publications

Chemical Extractability of Lead in Field-Contaminated Soils: Implications for Estimating Total Lead

Chemical Extractability of Lead in Field-Contaminated Soils: Implications for Estimating Total Lead

Extractability and bioavailability of Pb and As in historically contaminated orchard soil: Effects of compost amendments

The Impact of Biosolid Application on Soil and Native Plants in a Degraded Brazilian Atlantic Rainforest Soil

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