Key Lab of Water and Sediment Science of the Ministry of Education, School of Environment, Beijing Normal University, Beijing, 100875, China; State Key Laboratory of Petroleum Resource and Prospecting, College of Geosciences, China Petroleum University, Beijing, 102249, China.
State Key Laboratory of Petroleum Resource and Prospecting, College of Geosciences, China Petroleum University, Beijing, 102249, China.
Ecotoxicol Environ Saf. 2020 Apr 1;192:110262. doi: 10.1016/j.ecoenv.2020.110262. Epub 2020 Feb 13.
From the perspective of ecological risk, this study uses a multisource data method to search for global data, uses the acute and chronic ratio method to process the data, uses the species-sensitive distribution method to evaluate the ecological risk that petroleum hydrocarbons pose to aquatic organisms, and evaluates the ecological risk of the water environment in five Chinese water bodies. The results are as follows. First, in an aquatic ecosystem, the toxicological effects of petroleum hydrocarbons were found to be more obvious on consumers, and the sensitivity of fish was found to be higher than that of crustaceans. Second, the acutely lethal effects of petroleum hydrocarbons, fluorene, and benzo [a] pyrene on aquatic ecosystems were fitted by using the documentary method of multisource data collection and a Log-logistic curve. Third, in the case study evaluation of five Chinese water bodies, the ecological risks of polycyclic aromatic hydrocarbons were ranked (from low to high) as fluorene < benzo [a] pyrene. The ecological risk values of benzo [a] pyrene were all greater than 1. These risks should not be underestimated, and prevention and control work should be performed.
从生态风险的角度出发，本研究采用多源数据方法搜索全球数据，利用急性和慢性比值法处理数据，利用物种敏感分布法评估石油烃对水生生物的生态风险，并评估了中国五个水体的水环境生态风险。结果表明：首先，在水生生态系统中，石油烃的毒理学效应在消费者中更为明显，并且发现鱼类的敏感性高于甲壳类动物；其次，利用多源数据收集的文献方法和 Log-logistic 曲线拟合了石油烃、荧蒽和苯并[a]芘对水生生态系统的急性致死效应；第三，在对中国五个水体的案例研究评估中，多环芳烃的生态风险（从低到高）排列为：荧蒽<苯并[a]芘。苯并[a]芘的生态风险值均大于 1，这些风险不容忽视，应开展防控工作。
