Assessment of the Bioavailability of Mercury Sulfides in Paddy Soils Using Sodium Thiosulfate Extraction - Results from Microcosm Experiments

Autor: Hong Li, Yunyun Li, Wenli Tang, Huan Zhong, Jiating Zhao, Xu Bai, Shengnan Sha, Diandou Xu, Pei Lei, Yuxi Gao
Rok vydání: 2022
Předmět:
Zdroj: Bulletin of Environmental Contamination and Toxicology. 109:764-770
ISSN: 1432-0800
0007-4861
DOI: 10.1007/s00128-022-03483-w
Popis: Mercury sulfides (HgS), one of the largest Hg sinks in the lithosphere, has long been considered to be highly inert. Recently, several HgS speciation (e.g., nano- or micro-sized HgS particles) in paddy soils have been found to be reactive and bioavailable, increasing the possibility of methylation and bioaccumulation and posing a potential risk to humans. However, a simple and uniform method for investigating HgS bioavailability is still lacking. To address this issue, we extracted dissolved Hg from HgS particles by sodium thiosulfate (Na
Databáze: OpenAIRE
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