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Legacy and emerging per- and polyfluoroalkyl substances (PFASs) in agricultural soils affected by fluorochemical manufacturing facilities, North China: Occurrence, region-specific distribution, substitution trend and source appointment.
Xing, Ziao; Wang, Guoguang; Liu, Shuaihao; Chen, Haiyue; Dong, Xu; Wang, Haixia; Liu, Yu.
Afiliación
  • Xing Z; College of Environmental Science and Engineering, Dalian Maritime University, No. 1 Linghai Road, Dalian 116026, PR China.
  • Wang G; College of Environmental Science and Engineering, Dalian Maritime University, No. 1 Linghai Road, Dalian 116026, PR China. Electronic address: guoguangwang@dlmu.edu.cn.
  • Liu S; College of Environmental Science and Engineering, Dalian Maritime University, No. 1 Linghai Road, Dalian 116026, PR China.
  • Chen H; College of Environmental Science and Engineering, Dalian Maritime University, No. 1 Linghai Road, Dalian 116026, PR China.
  • Dong X; College of Environmental Science and Engineering, Dalian Maritime University, No. 1 Linghai Road, Dalian 116026, PR China.
  • Wang H; Navigation College, Dalian Maritime University, No.1 Linghai Road, Dalian 116026, PR China.
  • Liu Y; College of Environmental Science and Engineering, Dalian Maritime University, No. 1 Linghai Road, Dalian 116026, PR China.
J Hazard Mater ; 474: 134770, 2024 Aug 05.
Article en En | MEDLINE | ID: mdl-38838522
ABSTRACT
Accompanied with restriction of legacy per- and polyfluoroalkyl substances (PFASs), numbers of emerging PFASs are widely detected in the environment. However, information on environmental occurrences and behaviors of emerging PFASs were scarce in agricultural soils. In this study, the spatial distributions, sources, substitution trends and ecological risk assessment of 31 legacy and emerging PFASs were investigated in 69 agricultural soils from Fuxin, North China. The 26 out of 31 PFASs were detected with concentrations of 57.36 - 1271.06 pg/g dry weight. Perfluorooctanoic acid (PFOA) and hexafluoropropylene oxide dimer acid (HFPO-DA) were predominant in legacy and emerging PFASs, respectively. Based on principal component and dual carbon-nitrogen stable isotope analysis, atmosphere, fluorochemical activities and river irrigation were main sources of PFASs. Substitution trends indicated HFPO-DA and short chain perfluoroalkyl carboxylic acids (C4 - C7) as main alternatives of PFOA, and 62 fluorotelomer sulfonic acid (62 FTSA) and sodium p-perfluorous nonenoxybenzene sulfonate (OBS) as major substitutes to perfluorooctanesulfonic acid (PFOS). The calculated risk quotient values (< 0.006) only indicated potential low ecological risk of 7 target PFASs in agricultural soils. The results of this study broadened out the information of PFAS contamination in agricultural soils, which were significant for PFAS supervision in China.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Hazard Mater Asunto de la revista: SAUDE AMBIENTAL Año: 2024 Tipo del documento: Article 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 Idioma: En Revista: J Hazard Mater Asunto de la revista: SAUDE AMBIENTAL Año: 2024 Tipo del documento: Article Pais de publicación: Países Bajos