青岛市典型海岸带表层沉积物中邻苯二甲酸酯的组成、分布特征及生态风险评价

发布时间：2018-08-20 11:29

【摘要】：在青岛市典型海岸带区域采集25个表层沉积物样品,对美国环境保护署(USEPA)优先控制的6种邻苯二甲酸酯(PAEs)化合物含量进行测定,并对其分布特征、污染水平进行研究,同时展开了生态风险评价。青岛周边典型海岸带表层沉积物中6种PAEs中仅测定出邻苯二甲酸二甲酯(DMP)、邻苯二甲酸二丁酯(DBP)、邻苯二甲酸二(2-乙基己基)酯(DEHP)3种,3种PAEs总量为17.10×10-9~3446.49×10-9,各检出物质含量范围由高到低依次为:DEHP(ND~3209.83×10-9),DBP(ND~2744.35×10-9),DMP(1.70×10-9~95.45×10-9)。其中个别海岸带样品中PAEs污染较严重,但与国内外海洋沉积物中PAEs含量水平相比处于中等偏低水平。生态风险评价显示,除少数站点外,青岛市典型海岸带表层沉积物中PAEs污染物对环境危害较低。
[Abstract]:25 surface sediment samples were collected in typical coastal zone of Qingdao. The contents of 6 phthalate (PAEs) compounds controlled by (USEPA) were determined, and their distribution characteristics and pollution level were studied. At the same time, ecological risk assessment is carried out. Only dimethyl phthalate, (DMP), dibutyl phthalate, (DBP), dibutyl phthalate, (DEHP), 3,446.49 脳 10 ~ (-9) PAEs were determined in the surface sediments of typical coastal zone around Qingdao. The contents of each detected substance were 17.10 脳 10 ~ (-9) ~ 3446.49 脳 10 ~ (-9) 脳 10 ~ (-9). The total amount of PAEs was 17.10 脳 10 ~ (-9) ~ 3446.49 脳 10 ~ (-9). The range from high to low is: DEHP (ND~3209.83 脳 10-9) (ND~2744.35 脳 10-9) DMP (1.70 脳 10-9) 95.45 脳 10-9). The PAEs pollution in some coastal zone samples is more serious, but the level of PAEs content in marine sediments at home and abroad is lower than that in domestic and foreign marine sediments. Ecological risk assessment showed that PAEs pollutants in the surface sediments of typical coastal zone in Qingdao were less harmful to the environment except for a few sites.
【作者单位】：中国地质调查局滨海湿地生物地质重点实验室;青岛海洋地质研究所;中国海洋大学海洋地球科学学院;青岛大学环境科学与工程学院;
【基金】：国家自然科学基金资助项目(41306064) 国土资源部公益性行业基金项目(201411072) 中国地质调查局地质调查工作项目(GZH201100203;12120113015400) 国家科技基础性工作专项(2013FY112200)
【分类号】：X55;X826

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