中国松花江表层沉积物中多环芳烃和邻苯二甲酸酯的分布、组成及生态风险评估。
Distributions, compositions, and ecological risk assessment of polycyclic aromatic hydrocarbons and phthalic acid esters in surface sediment of Songhua river, China.
机构信息
State Key Laboratory of Environmental Criteria And Risk Assessment, Chinese Research Academy of Environmental Sciences, No. 8 Da Yang Fang, Anwai, Chaoyang District, Beijing 100012, PR China; Lanzhou University, Lanzhou 730000, PR China; Xinjiang Agricultural University, Urumqi 830052, PR China.
State Key Laboratory of Environmental Criteria And Risk Assessment, Chinese Research Academy of Environmental Sciences, No. 8 Da Yang Fang, Anwai, Chaoyang District, Beijing 100012, PR China; Research Center for Environmental Pollution Control Engineering, Chinese Research Academy of Environmental Sciences, Beijing 100012, PR China.
出版信息
Mar Pollut Bull. 2020 Mar;152:110923. doi: 10.1016/j.marpolbul.2020.110923. Epub 2020 Feb 17.
The distribution, composition, and ecological risk of 16 types of polycyclic aromatic hydrocarbons (PAHs) and 6 types of phthalic acid esters (PAEs) in the surface sediment of Songhua river, northeast China, were investigated. The total weight of the PAHs (∑PAHs) varied from 226.70 to 7086.62 ng/g dry weight (dw), whereas that of the PAEs (∑PAEs) ranged from 819.44 to 24,035.39 ng/g dw. The dominant PAHs were four-membered ring PAHs, which varied from 18.65% to 78.10% of the total PAHs. The most abundant PAEs was di-2-ethylhexyl phthalate ester (DEHP), which accounted for 65.02-99.07% of the total PAEs, followed by di-n-butyl phthalate ranging from 1.50 to 55.43%. Pyrolytic origin was the dominant PAH source. Approximately 12.70% target PAHs in the Songhua river sediment exhibited moderate ecological risk with 23.49-1404.09 ng/g carcinogenic toxicity equivalent. DEHP in 80.95% of the sediment samples exceeded the effects range low, indicating its potential harmfulness to the aquatic environment.
调查了中国东北松花江表层沉积物中 16 种多环芳烃（PAHs）和 6 种邻苯二甲酸酯（PAEs）的分布、组成和生态风险。∑PAHs 总重量范围为 226.70 至 7086.62ng/g 干重（dw），∑PAEs 总重量范围为 819.44 至 24035.39ng/g dw。优势 PAHs 为四环 PAHs，占总 PAHs 的 18.65%至 78.10%。最丰富的 PAE 是邻苯二甲酸二（2-乙基己基）酯（DEHP），占总 PAEs 的 65.02%至 99.07%，其次是邻苯二甲酸二丁酯，占 1.50%至 55.43%。热解来源是主要的 PAH 来源。松花江沉积物中约 12.70%的目标 PAHs 具有中等生态风险，致癌毒性当量为 23.49-1404.09ng/g。80.95%的沉积物样品中的 DEHP 超过了效应范围低值，表明其对水生态环境具有潜在危害。
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