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Organic matter-solid phase interactions are critical for predicting arsenic release and plant uptake in Bangladesh paddy soils

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Organic matter-solid phase interactions are critical for predicting arsenic release and plant uptake in Bangladesh paddy soils. / Williams, Paul N; Zhang, Hao; Davison, William et al.
In: Environmental Science and Technology, Vol. 45, No. 14, 2011, p. 6080-6087.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Williams, PN, Zhang, H, Davison, W, Meharg, AA, Hossain, M, Norton, GJ, Brammer, H & Islam, MR 2011, 'Organic matter-solid phase interactions are critical for predicting arsenic release and plant uptake in Bangladesh paddy soils', Environmental Science and Technology, vol. 45, no. 14, pp. 6080-6087. https://doi.org/10.1021/es2003765

APA

Williams, P. N., Zhang, H., Davison, W., Meharg, A. A., Hossain, M., Norton, G. J., Brammer, H., & Islam, M. R. (2011). Organic matter-solid phase interactions are critical for predicting arsenic release and plant uptake in Bangladesh paddy soils. Environmental Science and Technology, 45(14), 6080-6087. https://doi.org/10.1021/es2003765

Vancouver

Williams PN, Zhang H, Davison W, Meharg AA, Hossain M, Norton GJ et al. Organic matter-solid phase interactions are critical for predicting arsenic release and plant uptake in Bangladesh paddy soils. Environmental Science and Technology. 2011;45(14):6080-6087. doi: 10.1021/es2003765

Author

Williams, Paul N ; Zhang, Hao ; Davison, William et al. / Organic matter-solid phase interactions are critical for predicting arsenic release and plant uptake in Bangladesh paddy soils. In: Environmental Science and Technology. 2011 ; Vol. 45, No. 14. pp. 6080-6087.

Bibtex

@article{557200db3ad64871a0c8d6f22b3315ff,
title = "Organic matter-solid phase interactions are critical for predicting arsenic release and plant uptake in Bangladesh paddy soils",
abstract = "Agroecological zones within Bangladesh with low levels of arsenic in groundwater and soils produce rice that is high in arsenic with respect to other producing regions of the globe. Little is known about arsenic cycling in these soils and the labile fractions relevant for plant uptake when flooded. Soil porewater dynamics of field soils (n = 39) were recreated under standardized laboratory conditions to investigate the mobility and interplay of arsenic, Fe, Si, C, and other elements, in relation to rice grain element composition, using the dynamic sampling technique diffusive gradients in thin films (DGT). Based on a simple model using only labile DGT measured arsenic and dissolved organic carbon (DOC), concentrations of arsenic in Aman (Monsoon season) rice grain were predicted reliably. DOC was the strongest determinant of arsenic solid-solution phase partitioning, while arsenic release to the soil porewater was shown to be decoupled from that of Fe. This study demonstrates the dual importance of organic matter (OM), in terms of enhancing arsenic release from soils, while reducing bioavailability by sequestering arsenic in solution.",
author = "Williams, {Paul N} and Hao Zhang and William Davison and Meharg, {Andrew A} and Mahmud Hossain and Norton, {Gareth J} and Hugh Brammer and Islam, {M Rafiqul}",
year = "2011",
doi = "10.1021/es2003765",
language = "English",
volume = "45",
pages = "6080--6087",
journal = "Environmental Science and Technology",
issn = "1520-5851",
publisher = "American Chemical Society",
number = "14",

}

RIS

TY - JOUR

T1 - Organic matter-solid phase interactions are critical for predicting arsenic release and plant uptake in Bangladesh paddy soils

AU - Williams, Paul N

AU - Zhang, Hao

AU - Davison, William

AU - Meharg, Andrew A

AU - Hossain, Mahmud

AU - Norton, Gareth J

AU - Brammer, Hugh

AU - Islam, M Rafiqul

PY - 2011

Y1 - 2011

N2 - Agroecological zones within Bangladesh with low levels of arsenic in groundwater and soils produce rice that is high in arsenic with respect to other producing regions of the globe. Little is known about arsenic cycling in these soils and the labile fractions relevant for plant uptake when flooded. Soil porewater dynamics of field soils (n = 39) were recreated under standardized laboratory conditions to investigate the mobility and interplay of arsenic, Fe, Si, C, and other elements, in relation to rice grain element composition, using the dynamic sampling technique diffusive gradients in thin films (DGT). Based on a simple model using only labile DGT measured arsenic and dissolved organic carbon (DOC), concentrations of arsenic in Aman (Monsoon season) rice grain were predicted reliably. DOC was the strongest determinant of arsenic solid-solution phase partitioning, while arsenic release to the soil porewater was shown to be decoupled from that of Fe. This study demonstrates the dual importance of organic matter (OM), in terms of enhancing arsenic release from soils, while reducing bioavailability by sequestering arsenic in solution.

AB - Agroecological zones within Bangladesh with low levels of arsenic in groundwater and soils produce rice that is high in arsenic with respect to other producing regions of the globe. Little is known about arsenic cycling in these soils and the labile fractions relevant for plant uptake when flooded. Soil porewater dynamics of field soils (n = 39) were recreated under standardized laboratory conditions to investigate the mobility and interplay of arsenic, Fe, Si, C, and other elements, in relation to rice grain element composition, using the dynamic sampling technique diffusive gradients in thin films (DGT). Based on a simple model using only labile DGT measured arsenic and dissolved organic carbon (DOC), concentrations of arsenic in Aman (Monsoon season) rice grain were predicted reliably. DOC was the strongest determinant of arsenic solid-solution phase partitioning, while arsenic release to the soil porewater was shown to be decoupled from that of Fe. This study demonstrates the dual importance of organic matter (OM), in terms of enhancing arsenic release from soils, while reducing bioavailability by sequestering arsenic in solution.

UR - http://www.scopus.com/inward/record.url?scp=79960536117&partnerID=8YFLogxK

U2 - 10.1021/es2003765

DO - 10.1021/es2003765

M3 - Journal article

C2 - 21692537

VL - 45

SP - 6080

EP - 6087

JO - Environmental Science and Technology

JF - Environmental Science and Technology

SN - 1520-5851

IS - 14

ER -