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Temperature and Dissolved Oxygen Drive Arsenic Mobility at the Sediment-Water Interface in the Lake Taihu.
Zeng, Liqing; Yang, Fan; Chen, Yuyan; Chen, Songmei; Xu, Mei; Gu, Chongyu.
Afiliação
  • Zeng L; Department of Public Health and Medical Technology, Xiamen Medical College, Xiamen 361021, China.
  • Yang F; Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China.
  • Chen Y; Department of Public Health and Medical Technology, Xiamen Medical College, Xiamen 361021, China.
  • Chen S; Department of Public Health and Medical Technology, Xiamen Medical College, Xiamen 361021, China.
  • Xu M; Department of Public Health and Medical Technology, Xiamen Medical College, Xiamen 361021, China.
  • Gu C; Department of Public Health and Medical Technology, Xiamen Medical College, Xiamen 361021, China.
Toxics ; 12(7)2024 Jun 29.
Article em En | MEDLINE | ID: mdl-39058123
ABSTRACT
In this study examining the effects of temperature and dissolved oxygen (DO) on arsenic (As) release at the sediment-water interface (SWI), it was found that an increase in temperature promoted the formation of an anaerobic environment and the reduction and desorption of As fractions within the sediments. A temperature of 32 °C was the most favorable condition for As release at the SWI, and low DO conditions aggravated this process. Even under high DO conditions, the release of sediment As was significantly accelerated under high-temperature conditions, allowing dissolved As to rapidly migrate to the overlying water. In this process, the release of As from sediments was a consequence of the transformation of As fractions in the sediments.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Toxics Ano de publicação: 2024 Tipo de documento: Article País de afiliação: China País de publicação: Suíça
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Toxics Ano de publicação: 2024 Tipo de documento: Article País de afiliação: China País de publicação: Suíça