Occurrence, potential sources, and ecological risks of traditional and novel organophosphate esters in facility agriculture soils: A case study in Beijing, China
文献类型: 外文期刊
第一作者: Zhao, Fang
作者: Zhao, Fang;Ping, Hua;Liu, Jing;Zhao, Tianyu;Wang, Yingjun;Ma, Zhihong;Li, Cheng;Zhao, Fang;Ping, Hua;Liu, Jing;Zhao, Tianyu;Wang, Yingjun;Ma, Zhihong;Li, Cheng;Cui, Guanglu;Ha, Xuejiao
作者机构:
关键词: Organophosphate ester; Farmland soil; Mulch film; Risk assessment
期刊名称:SCIENCE OF THE TOTAL ENVIRONMENT ( 影响因子:9.8; 五年影响因子:9.6 )
ISSN: 0048-9697
年卷期: 2024 年 923 卷
页码:
收录情况: SCI
摘要: Although traditional organophosphate esters (OPEs) in soils have attracted widespread interest, there is little information on novel OPEs (NOPEs), especially in facility agriculture soils. In this work, we surveyed 11 traditional OPEs, four NOPEs, and four corresponding organophosphite antioxidant precursors (OPAs) for the NOPEs in soil samples collected from facility greenhouses and open fields. The median summed concentrations of traditional OPEs and NOPEs were 14.1 mu g/kg (range: 5.38 - 115 mu g/kg) and 702 mu g/kg (range: 348 - 1952 mu g/kg), respectively, in film -mulched soils from greenhouses. These concentrations were much higher than those in soils without mulch films, which suggests that OPEs in soils are associated with plastic mulch films. Tris(2,4-di- tert - butylphenyl) phosphate, which is a NOPE produced by oxidation of (2,4-di- tert -butylphenyl) phosphite, was the predominant congener in farmland soils, with concentrations several orders of magnitude greater than those of traditional OPEs. Comparisons of OPEs in different mulch films and the corresponding mulched soils revealed that degradable and black films caused more severe pollution than polyethylene and white films. Traditional OPEs, including tris(2-ethylhexyl) phosphate and tricresyl phosphate, exhibited moderate risks in farmland soils, especially in film -mulched soils. NOPEs, including trisnonylphenol phosphate, posed high ecological risks to the terrestrial ecosystem. Risk evaluations should be conducted for a broad range of NOPEs in the environment.
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