张铃松;王业耀;刘方;金小伟;孟凡生;马广文;陈平;李俊龙;丁页;李曌;刘喜惠;

• 1: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
• 2:中国环境监测总站

摘要(Abstract)：

为了解我国近岸海域重金属污染现状,以镉为目标污染物,选择北部湾、渤海湾、杭州湾、辽东湾、闽江口、珠江口、长江口、黄河口等8个典型海湾、河口区域作为评估目标区域进行水生态风险评估。研究结果显示:北部湾、渤海湾、杭州湾、闽江口、长江口、珠江口、黄河口等7个海域水体中镉的暴露水平较低,从2005至2013年其急、慢性暴露的最高潜在影响比例均低于5%,且整体呈下降趋势。辽东湾水体中镉从2005至2013年对水生生物的最高潜在影响比例为28.67%(95%置信区间26.29%~30.06%),5%、10%、15%、20%超过率对应的潜在影响比例分别为18.95%(17.84%~20.23%)、12.51%(11.65%~13.61%)、8.26%(7.40%~9.15%)、5.45%(4.62%~6.16%),其在2005—2010年间呈现略微上升趋势,2010—2013年间呈现下降趋势。水体中镉暴露水平主要受入海河流污染物输入的影响,其中五里河、大凌河影响最强。

关键词(KeyWords)： 镉;近岸海域;水生态风险;物种敏感度分布

Abstract:

Keywords:

基金项目(Foundation): 国家水体污染控制与治理科技重大专项(2014ZX07502002);; 国家自然科学基金(21307165);; 环保公益项目(201309008)

作者(Author): 张铃松;王业耀;刘方;金小伟;孟凡生;马广文;陈平;李俊龙;丁页;李曌;刘喜惠;

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