| 我国七大流域水体多环芳烃的分布特征及风险评价 |
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| 引用本文： | 范博,王晓南,黄云,李霁,高祥云,李雯雯,刘征涛.我国七大流域水体多环芳烃的分布特征及风险评价[J].环境科学,2019,40(5):2101-2114. |
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| 作者姓名： | 范博 王晓南 黄云 李霁 高祥云 李雯雯 刘征涛 |
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| 作者单位： | 南昌大学资源环境与化工学院,鄱阳湖环境与资源利用教育部重点实验室,南昌330031;中国环境科学研究院环境基准与风险评估国家重点实验室,国家环境保护化学品生态效应与风险评估重点实验室,北京 100012 |
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| 基金项目： | 国家水体污染控制与治理科技重大专项（2017ZX07301-002）；国家自然科学基金项目（41521003）；环境基准与风险评估国家重点实验室自由探索基金项目 |
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| 摘 要： | 对我国七大流域水体中16种美国环保署(US EPA)优控多环芳烃(polycyclic aromatic hydrocarbons,PAHs)的质量浓度及其空间分布特征进行了系统地分析和总结,应用物种敏感度分布法(species sensitivity distribution,SSD)评价了8种单体PAHs对水生生物的急性生态风险,分别应用浓度加和模型与效应加和模型评价了ΣPAH_8混合物对水生生物的急性联合生态风险,利用人体暴露风险系数法对PAHs饮水途径健康风险进行评价.结果表明,我国七大流域水体中4环以下的PAHs浓度较高,ΣPAH_(16)浓度均值为2596. 25 ng·L~(-1),高于国外绝大多数水体中ΣPAHs浓度水平;国内外水体中PAHs的组成特征和来源相似;北方水体中ΣPAH_(16)污染比南方水体严重.七大流域水体中萘、苊、芴、菲、荧蒽、芘、蒽对水生生物的潜在影响比例(potential affected fraction,PAF)小于4%.除海河、长江流域外,其它几大流域水体中苯并(a)芘对水生生物的PAF值已超过5%,表明苯并(a)芘对水生生物具有较高的急性生态风险.浓度加和模型不适用于PAHs的水生态风险评价,应用效应加和模型进行的风险评价结果显示,除海河流域外,其它几大流域水体中ΣPAH_8混合物对水生生物的累计潜在影响比例(multisubstance PAF,ms PAF)均高于5%,说明ΣPAH_8混合物对水生生物存在较高的急性联合生态风险.七大流域水体中致癌类PAHs的饮水途径健康风险处于10~(-5)水平,高于US EPA推荐的对致癌物质最大可接受风险水平(10~(-6)),非致癌类PAHs的饮水途径健康风险处于10~(-9)水平,远低于US EPA规定的阈值1,表明我国七大流域水体中PAHs可通过饮水对人体健康产生潜在的致癌风险.
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| 关 键 词： | 多环芳烃(PAHs) 七大流域 物种敏感度分布(SSD) 生态风险 健康风险 |
| 收稿时间： | 2018/9/4 0:00:00 |
| 修稿时间： | 2018/11/23 0:00:00 |
Distribution and Risk Assessment of Polycyclic Aromatic Hydrocarbons in Water Bodies in Seven Basins of China |
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| FAN Bo,WANG Xiao-nan,HUANG Yun,LI Ji,GAO Xiang-yun,LI Wen-wen and LIU Zheng-tao.Distribution and Risk Assessment of Polycyclic Aromatic Hydrocarbons in Water Bodies in Seven Basins of China[J].Chinese Journal of Environmental Science,2019,40(5):2101-2114. |
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| Authors: | FAN Bo WANG Xiao-nan HUANG Yun LI Ji GAO Xiang-yun LI Wen-wen and LIU Zheng-tao |
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| Institution: | Key Laboratory of Poyang Lake Environment and Resources Utilization, Ministry of Education, School of Resources Environment & Chemical Engineering, Nanchang University, Nanchang 330031, China,State Key Laboratory of Environmental Criteria and Risk Assessment, State Environmental Protection Key Laboratory of Ecological Effects and Risk Assessment of Chemicals, Chinese Research Academy of Environmental Sciences, Beijing 100012, China,Key Laboratory of Poyang Lake Environment and Resources Utilization, Ministry of Education, School of Resources Environment & Chemical Engineering, Nanchang University, Nanchang 330031, China,State Key Laboratory of Environmental Criteria and Risk Assessment, State Environmental Protection Key Laboratory of Ecological Effects and Risk Assessment of Chemicals, Chinese Research Academy of Environmental Sciences, Beijing 100012, China,State Key Laboratory of Environmental Criteria and Risk Assessment, State Environmental Protection Key Laboratory of Ecological Effects and Risk Assessment of Chemicals, Chinese Research Academy of Environmental Sciences, Beijing 100012, China,Key Laboratory of Poyang Lake Environment and Resources Utilization, Ministry of Education, School of Resources Environment & Chemical Engineering, Nanchang University, Nanchang 330031, China and State Key Laboratory of Environmental Criteria and Risk Assessment, State Environmental Protection Key Laboratory of Ecological Effects and Risk Assessment of Chemicals, Chinese Research Academy of Environmental Sciences, Beijing 100012, China |
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| Abstract: | |
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| Keywords: | polycyclic aromatic hydrocarbons(PAHs) seven basins species sensitivity distribution(SSD) ecological risk health risk |
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