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Heavy metal pollution in agricultural soils from surrounding industries with low emissions: Assessing contamination levels and sources.
Yao, Cong; Yang, Yidan; Li, Caixia; Shen, Zhijie; Li, Jieqin; Mei, Nan; Luo, Chengzhong; Wang, Yongmin; Zhang, Cheng; Wang, Dingyong.
Afiliación
  • Yao C; College of Resources and Environment, Southwest University, Chongqing 400715, China.
  • Yang Y; College of Resources and Environment, Southwest University, Chongqing 400715, China.
  • Li C; College of Resources and Environment, Southwest University, Chongqing 400715, China.
  • Shen Z; China Merchants Ecological Environmental Protection Technology Co., LTD, Chongqing 400067, China.
  • Li J; College of Resources and Environment, Southwest University, Chongqing 400715, China.
  • Mei N; Chongqing Municipal Solid Waste Management Center, Chongqing 401147, China.
  • Luo C; Chongqing Municipal Solid Waste Management Center, Chongqing 401147, China.
  • Wang Y; College of Resources and Environment, Southwest University, Chongqing 400715, China.
  • Zhang C; College of Resources and Environment, Southwest University, Chongqing 400715, China. Electronic address: zhcheng@126.com.
  • Wang D; College of Resources and Environment, Southwest University, Chongqing 400715, China.
Sci Total Environ ; 917: 170610, 2024 Mar 20.
Article en En | MEDLINE | ID: mdl-38307271
ABSTRACT
The potential for heavy metal (HM) pollution in agricultural soils adjacent to industries with elevated HM emissions has long been recognized. However, industries with relatively lower levels of HM emissions, such as alumina smelting and glass production, may still contribute to the pollution of surrounding agricultural soils through continuous, albeit low-level, emissions. Despite this, this issue has not garnered adequate attention thus far. Therefore, this study aimed to assess the extent of HM pollution in agricultural soils adjacent to an alumina smelting and a glass production factory, identifying contamination levels and potential sources through the analysis of input fluxes, isotope fingerprints, and receptor models. Results showed moderate cadmium (Cd) contamination in surface soil, exceeding standards at a rate of 86.36 %. Further analysis revealed that atmospheric deposition was the primary route for Cd input in both paddy fields (89.20 %) and dryland soils (91.61 %). Additionally, the δ114/110Cd values in surface soils indicated that dust played a role in influencing Cd levels in distant surface soils, while raw materials and slags were identified as primary sources near the factory. Industrial sources were considered the primary contributors of Cd in soil accounting for approximately 73.38 % and 82.67 %, respectively, according to the positive matrix factorization model (PMF) and absolute principal component scores-multiple linear regression model (APCS-MLR). Overall, this study underscores the importance of monitoring HMs from industries with relatively low emissions and provides a scientific basis for effectively managing HMs pollution in agricultural soils, ensuring the preservation of agricultural soil quality.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: Sci Total Environ Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: Sci Total Environ Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos