Organophosphate Diesters (Di-OPEs) Play a Critical Role in Understanding Global Organophosphate Esters (OPEs) in Fishmeal.
Organophosphate Diesters (Di-OPEs) Play a Critical Role in Understanding Global Organophosphate Esters (OPEs) in Fishmeal.
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DOI：
10.1021/acs.est.0c03274
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发表时间：
2020-09
影响因子：
11.4
通讯作者：
Xiaomin Li;Nannan Zhao;Jie Fu;Yifei Liu;Wei Zhang;Shujun Dong;Peilong Wang;X. Su;Jianjie Fu
中科院分区：
文献类型：
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作者：
Xiaomin Li;Nannan Zhao;Jie Fu;Yifei Liu;Wei Zhang;Shujun Dong;Peilong Wang;X. Su;Jianjie Fu
有机磷酸三酯（tri-OPEs）最近已被广泛确定在水生生态系统中，但其有机磷酸二酯（di-OPE）代谢物的信息很少。在此，在地球仪（美国，中国、欧洲、南美和东南亚）。对16种具有代表性的三种有机污染物和8种二种有机污染物进行了调查，以揭示工业生产、代谢、环境持久性或理化性质是否是影响其环境负荷和分布的关键因素。在鱼粉中100%检测到三-OPEs和二-OPEs，首次在海洋动物中检测到明显水平的双（2-氯乙基）磷酸氢盐（BCEP）和双（1，3-二氯-2-丙基）磷酸盐（BDCIPP）。二-OPEs的平均浓度（49.6 ± 27.5 ng/g dw）与三-OPEs的平均浓度（59.3 ± 92.2 ng/g dw）处于同一数量级。磷酸三（2-氯乙基）酯（TCEP）、磷酸三（2-氯异丙基）酯（TCIPP）、磷酸三苯酯（TPhP）、磷酸三（2-丁氧基乙基）酯（TBOEP）和磷酸2-乙基己基二苯基酯（EHDPP）的地理特异性分布具有统计学显著性（p < 0.05）。平均浓度比范围从BCEP-TCEP对的0.087至磷酸二甲酯（DMP）-磷酸三甲酯（TMP）对的507。只有TPhP -磷酸二苯酯（DPhP）对呈现强正线性相关性（r = 0.731; p < 0.01），DPhP被证明是降解来源。商业来源对DMP-TMP和磷酸三丁酯（TnBP）对的分布模式具有显著的总体影响，而生物转化和非生物稳定性深刻地影响了双（2-乙基己基）磷酸（BEHP）-三（2-乙基己基）磷酸（TEHP），双（1-氯-2-丙基）磷酸（BCIPP）- TCIPP和BCEP - TCEP对。海洋生物中的双有机污染物是了解海洋生物中三有机污染物环境行为的关键。
Organophosphate triesters (tri-OPEs) have recently been widely identified in aquatic ecosystems, but information on their organophosphate diester (di-OPE) metabolites is sparsely available. Herein, uniform fishmeal products were collected across the globe (the U.S., China, Europe, South America, and Southeast Asia). Sixteen representative tri-OPEs and eight di-OPEs were investigated to reveal whether industrial production, metabolism, environmental persistence, or physicochemical properties are the key factors influencing their environmental burden and distribution. Tri-OPEs and di-OPEs were 100% detected in fishmeal, with bis(2-chloroethyl) hydrogen phosphate (BCEP) and bis(1,3-dichloro-2-propyl) phosphate (BDCIPP) at discernible levels in marine fauna for the first time. Average concentration of di-OPEs (49.6 ± 27.5 ng/g dw) was of the same order of magnitude as that of tri-OPEs (59.3 ± 92.2 ng/g dw). Geographical-specific distributions of tris(2-chloroethyl) phosphate (TCEP), tris(2-chloroisopropyl) phosphate (TCIPP), triphenyl phosphate (TPhP), tris(2-butoxyethyl) phosphate (TBOEP), and 2-Ethylhexyl diphenyl phosphate (EHDPP) were statistically significant (p < 0.05). Mean concentration ratios ranged from 0.087 for the BCEP-TCEP pair to 507 for the dimethyl phosphate (DMP) - trimethyl phosphate (TMP) pair. Only the TPhP - diphenyl phosphate (DPhP) pair presented a strong positive linear correlation (r = 0.731; p < 0.01), and DPhP was proved a degradation origin. Commercial sources had a significant overall impact on distribution patterns of the DMP-TMP and the dibutyl phosphate (DnBP) - tri-n-butyl phosphate (TnBP) pairs, whereas biotic transformation and abiotic stability profoundly influenced the bis(2-ethylhexyl) phosphate (BEHP) - tris(2-ethylhexyl) phosphate (TEHP), the bis(1-chloro-2-propyl) phosphate (BCIPP) - TCIPP, and the BCEP - TCEP pairs. Di-OPEs are critical to understand environmental behavior of tri-OPEs in marine fauna.