Abstract
Arsenic (As) accumulation in rice grains is a threat to human health and marketability of rice products. in an effort to minimize as uptake by rice grains, field experiments were conducted to investigate as accumulation in rice grains of three cultivars in monosodium methane arsonate-treated soil under saturated and flooded water management practices. Results indicated that as concentrations in rice grains were cultivar-dependent and influenced by water management. Soil flooding would substantially enhance the as accumulation with a great variation among cultivars. Extractable as in the soil was positively correlated with sodium dithionite-sodium citrate-sodium bicarbonate solution-extractable Fe, suggesting a strong association of as with ferric (hydr)oxide. Additional laboratory studies showed a strong affinity of synthetic ferric (hydr)oxide with monosodium methane arsonate. This study demonstrated that selection of less As-responsive rice cultivars and use of saturated water management in paddy fields could be an effective means to minimize as accumulation in rice grains. © 2011 Mary Ann Liebert, Inc.
Recommended Citation
B. Hua et al., "Arsenic Accumulation in Rice Grains: Effects of Cultivars and Water Management Practices," Environmental Engineering Science, vol. 28, no. 8, pp. 591 - 596, Mary Ann Liebert, Aug 2011.
The definitive version is available at https://doi.org/10.1089/ees.2010.0481
Department(s)
Civil, Architectural and Environmental Engineering
Publication Status
Free Access
Keywords and Phrases
arsenic accumulation; phytoavailability; rice grain; water management
International Standard Serial Number (ISSN)
1557-9018; 1092-8758
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Mary Ann Liebert, All rights reserved.
Publication Date
01 Aug 2011
