盘龙江水及沉积物中酚类EDCs的污染特征及源解析认领

Analysis of the sources of phenolic pollution in- situ and features with endocrine disrupting compounds in Panlong River

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摘要研究了云贵高原城市河流盘龙江水及沉积物中酚类内分泌干扰物（Endocrine Disrupting Chemicals,EDCs）的污染特征及源解析,阐明了酚类EDCs的含量水平、分布特征、季节变化及污染来源,并估算了其排放到滇池的量。结果表明,盘龙江水及沉积物中普遍检出了酚类EDCs,其含量沿程变化呈现倒＂W＂型,枯水期的残留水平高于丰水期。除松华坝水库外,盘龙江水中的∑EDCs质量浓度为70~429 ng/L,沉积物中质量比为16~813 ng/g dw（干重）,每年输入滇池的量约为43 kg/a,NP2EO、NP1EO和BPA是主要的酚类EDCs。NP2EO、NP1EO、4-NP、BPA、4-CP和4-tOP在水中的质量浓度分别达到202 ng/L、154 ng/L、17 ng/L、79 ng/L、3.3ng/L和4.7 ng/L,在沉积物中质量比分别达到352 ng/g dw、316 ng/g dw、18 ng/g dw、124 ng/g dw、5.5 ng/g dw和14 ng/g dw。酚类EDCs在水和沉积物中的含量具有较好的相关性,水体自净过程对污染起到了一定的缓解作用。与其他地区河流相比,盘龙江中酚类EDCs的残留处于中等偏下水平。酚类EDCs在市区河段含量明显高于郊区段,对该区域内的水生生物构成了潜在危害。 The paper takes it as its objectives to trace and track the pollution characteristic features and sources of the phenolic endocrine disrupting chemicals （EDCs） in the water and sediment of an urban fiver known as Panlong River in Yunnan-Guizhou Plateau. In so do- ing, we would like to identify and determine the contamination de- gree, the distribution particularities, the seasonal variations of the pollution sources so as to find the ubiquitous regularity of the aquatic environment contamination by phenolic EDC and produce an evalua- tion for their emissions through the river, which finally merges into Lake Dianehi, Kunming. As a result of our investigation, the distri- bution of phenolic EDC in the water and sediment tends to assume a shape like an inverted letter ＂ W＂. The phenolic EDC emission de- grees in the water and sediment can be described mostly in a de- scending order as follows： NP2EO 〉 NP1EO 〉 BPA 〉 4 - NP 〉 4 - t - OP 〉 4 - CP. The content rates of phenolic EDCs in the two matri- ces in the dry seasons have been found higher than those in the wet seasons, with the exception of Songhuaba Reservoir, whose concen- tration rates of ~ EDCs in the water and sediment account for 70 - 429 ng/L and 16 - 813 ng/g dw, respectively, whereas the total amount of phenolic EDCs in the river current works out at about 43 kg/a. Furthermore, we have also determined that NP1EO, NP2EO and BPA are the three dominant compounds in the plateau river, with the content rates of NP2EO, NP1EO, 4 - NP, BPA, 4 - CP and 4 - t - OP accounting for 202 ng/L, 154 ng/L, 17 ng/L, 79 ng/L, 3.3 ng/L and 4.7 ng/L in the water, and up to 352 ng/g dw, 316 ng/g dw, 18 ng/g dw, 124 ng/g dw, 5.5 ng/g dw and 14 ng/g dw in the sediment, respectively. Thus, it can be seen that the distribution features of phenolic EDCs in the river water turn to be very much similar to those with the sediment. On the other hand, we have also noticed that, to a certain extent, the river also enjoys the power for self-purification potentiality, w

作者王彬董发勤谌书白英臣朱静平代群威谭江月付新梅 WANG Bin, DONG Fa-qin, CHEN Shu, BAI Ying-chen ZHU Jing-ping, DAI Qun-wei, TAN Jiang-yue, FU Xin-mei （ 1 School of Environmem and Resource, Southwest University of Sci- ence and Technology, Mianyang 621010, Sichuan, China; 2 Key Laboratory of Solid Waste Treatment and Resource Recycle of Min- istry of Education, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China ; 3 State Key Laboratory of Envi- ronmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Science, Beijing 100012, China）

机构地区西南科技大学环境与资源学院西南科技大学固体废物处理与资源化教育部重点实验室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

出处《安全与环境学报》 CAS CSCD 北大核心 2016年第1期288-294,共7页 Journal of Safety and Environment

基金国家自然科学基金项目（41403081）四川省应用基础研究计划项目（2015JY0168）西南科技大学高端引进人才项目（13zx7126）绵阳市科技计划项目（15S-02-1）

关键词环境学盘龙江内分泌干扰物污染特征源解析 environmentalology Fanlong River endocnne disrupting chemicals pollution characteristics source apportion-ment

分类号 X832 [环境科学与工程—环境工程] X142 [环境科学与工程—环境科学]

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