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Predicting arsenic solubility in contaminated soils using isotopic dilution techniques.

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Predicting arsenic solubility in contaminated soils using isotopic dilution techniques. / Tye, A. M.; Young, S. D.; Crout, N. M. J. et al.
In: Environmental Science and Technology, Vol. 36, No. 5, 01.03.2002, p. 982-988.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Tye, AM, Young, SD, Crout, NMJ, Zhang, H, Preston, S, Bailey, EH, Davison, W, Mcgrath, SP, Paton, GI & Kilham, K 2002, 'Predicting arsenic solubility in contaminated soils using isotopic dilution techniques.', Environmental Science and Technology, vol. 36, no. 5, pp. 982-988. https://doi.org/10.1021/es0101633

APA

Tye, A. M., Young, S. D., Crout, N. M. J., Zhang, H., Preston, S., Bailey, E. H., Davison, W., Mcgrath, S. P., Paton, G. I., & Kilham, K. (2002). Predicting arsenic solubility in contaminated soils using isotopic dilution techniques. Environmental Science and Technology, 36(5), 982-988. https://doi.org/10.1021/es0101633

Vancouver

Tye AM, Young SD, Crout NMJ, Zhang H, Preston S, Bailey EH et al. Predicting arsenic solubility in contaminated soils using isotopic dilution techniques. Environmental Science and Technology. 2002 Mar 1;36(5):982-988. doi: 10.1021/es0101633

Author

Tye, A. M. ; Young, S. D. ; Crout, N. M. J. et al. / Predicting arsenic solubility in contaminated soils using isotopic dilution techniques. In: Environmental Science and Technology. 2002 ; Vol. 36, No. 5. pp. 982-988.

Bibtex

@article{a709b6b5af544386a76eaa6cdbe89049,
title = "Predicting arsenic solubility in contaminated soils using isotopic dilution techniques.",
abstract = "An isotopic dilution assay was developed to measure radiolabile As concentration in a diverse range of soils (pH 3.30−7.62; % C = 1.00−6.55). Soils amended with 50 mg of As kg-1 (as Na2HAsO4·7H2O) were incubated for over 800 d in an aerated “microcosm” experiment. After 818 d, radiolabile As ranged from 27 to 57% of total applied As and showed a pH-dependent increase above pH 6. The radiolabile assay was also applied to three sets of soils historically contaminated with sewage sludge or mine-spoil. Results reflected the various geochemical forms in which the arsenic was present. On soils from a sewage disposal facility, radiolabile arsenate ranged from 3 to 60% of total As; mean lability was lower than in the equivalent pH range of the microcosm soils, suggesting occlusion of As into calcium phosphate compounds in the sludge-amended soils. In soils from mining areas in the U.K. and Malaysia, radiolabile As accounted for 0.44−19% of total As. The lowest levels of lability were associated with extremely large As concentrations, up to 17 000 mg kg-1, from arsenopyrite. Soil pore water was extracted from the microcosm experiment and speciated using “GEOCHEM”. The solidsolution equilibria of As in the microcosm soils was described by a simple model based on competition between HAsO42- and HPO42- for “labile” adsorption sites.",
author = "Tye, {A. M.} and Young, {S. D.} and Crout, {N. M. J.} and Hao Zhang and S. Preston and Bailey, {E. H.} and William Davison and Mcgrath, {S. P.} and Paton, {G. I.} and K. Kilham",
year = "2002",
month = mar,
day = "1",
doi = "10.1021/es0101633",
language = "English",
volume = "36",
pages = "982--988",
journal = "Environmental Science and Technology",
issn = "0013-936X",
publisher = "American Chemical Society",
number = "5",

}

RIS

TY - JOUR

T1 - Predicting arsenic solubility in contaminated soils using isotopic dilution techniques.

AU - Tye, A. M.

AU - Young, S. D.

AU - Crout, N. M. J.

AU - Zhang, Hao

AU - Preston, S.

AU - Bailey, E. H.

AU - Davison, William

AU - Mcgrath, S. P.

AU - Paton, G. I.

AU - Kilham, K.

PY - 2002/3/1

Y1 - 2002/3/1

N2 - An isotopic dilution assay was developed to measure radiolabile As concentration in a diverse range of soils (pH 3.30−7.62; % C = 1.00−6.55). Soils amended with 50 mg of As kg-1 (as Na2HAsO4·7H2O) were incubated for over 800 d in an aerated “microcosm” experiment. After 818 d, radiolabile As ranged from 27 to 57% of total applied As and showed a pH-dependent increase above pH 6. The radiolabile assay was also applied to three sets of soils historically contaminated with sewage sludge or mine-spoil. Results reflected the various geochemical forms in which the arsenic was present. On soils from a sewage disposal facility, radiolabile arsenate ranged from 3 to 60% of total As; mean lability was lower than in the equivalent pH range of the microcosm soils, suggesting occlusion of As into calcium phosphate compounds in the sludge-amended soils. In soils from mining areas in the U.K. and Malaysia, radiolabile As accounted for 0.44−19% of total As. The lowest levels of lability were associated with extremely large As concentrations, up to 17 000 mg kg-1, from arsenopyrite. Soil pore water was extracted from the microcosm experiment and speciated using “GEOCHEM”. The solidsolution equilibria of As in the microcosm soils was described by a simple model based on competition between HAsO42- and HPO42- for “labile” adsorption sites.

AB - An isotopic dilution assay was developed to measure radiolabile As concentration in a diverse range of soils (pH 3.30−7.62; % C = 1.00−6.55). Soils amended with 50 mg of As kg-1 (as Na2HAsO4·7H2O) were incubated for over 800 d in an aerated “microcosm” experiment. After 818 d, radiolabile As ranged from 27 to 57% of total applied As and showed a pH-dependent increase above pH 6. The radiolabile assay was also applied to three sets of soils historically contaminated with sewage sludge or mine-spoil. Results reflected the various geochemical forms in which the arsenic was present. On soils from a sewage disposal facility, radiolabile arsenate ranged from 3 to 60% of total As; mean lability was lower than in the equivalent pH range of the microcosm soils, suggesting occlusion of As into calcium phosphate compounds in the sludge-amended soils. In soils from mining areas in the U.K. and Malaysia, radiolabile As accounted for 0.44−19% of total As. The lowest levels of lability were associated with extremely large As concentrations, up to 17 000 mg kg-1, from arsenopyrite. Soil pore water was extracted from the microcosm experiment and speciated using “GEOCHEM”. The solidsolution equilibria of As in the microcosm soils was described by a simple model based on competition between HAsO42- and HPO42- for “labile” adsorption sites.

U2 - 10.1021/es0101633

DO - 10.1021/es0101633

M3 - Journal article

VL - 36

SP - 982

EP - 988

JO - Environmental Science and Technology

JF - Environmental Science and Technology

SN - 0013-936X

IS - 5

ER -