State Environmental Protection Key Laboratory of Coastal Ecosystem, National Marine Environmental Monitoring Center, Dalian 116023, China.
State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
Mar Pollut Bull. 2021 Feb;163:112013. doi: 10.1016/j.marpolbul.2021.112013. Epub 2021 Jan 14.
This study investigated the occurrence and profile of 14 organophosphate esters (OPEs) in surface water and sediment of the whole Bohai Sea. A total of 53 pairs of surface water and sediment samples were collected and the contained OPEs were quantified using a gas chromatography-mass spectrometry (GC-MS). The average concentrations of OPEs in surface water and sediment were in the range of 0-92.9 ng/L and 0.001-8.58 ng/g dry weight (dw), respectively, with tri (2-chloroethyl) phosphate (TCEP) as the predominant congener in both compartments. The total concentrations of 14 OPEs (∑OPEs) in surface water and sediment were in the range of 10.9-516.4 ng/L and 1.42-52.9 ng/g dw, respectively. The inventories of ∑OPEs were calculated to be 179.3 tons in the water and 101.5 tons in the sediment. Based on the risk quotients (RQs), the ecological risks of OPEs to the aquatic organisms in the Bohai Sea were considered to be negligible.
本研究调查了整个渤海海域地表水和沉积物中 14 种有机磷酸酯（OPEs）的发生情况和特征。共采集了 53 对地表水和沉积物样品，并用气相色谱-质谱法（GC-MS）对其中含有的 OPEs 进行了定量分析。OPEs 在地表水和沉积物中的平均浓度范围分别为 0-92.9ng/L 和 0.001-8.58ng/g 干重（dw），其中三（2-氯乙基）磷酸酯（TCEP）是这两个隔室中主要的同系物。地表水和沉积物中 14 种 OPEs 的总浓度（∑OPEs）范围分别为 10.9-516.4ng/L 和 1.42-52.9ng/g dw。根据风险商数（RQs），OPEs 对渤海海域水生生物的生态风险被认为是可以忽略不计的。
