京津冀重要饮用水源地潘大水库水体污染特征分析

潘家口、大黑汀水库(简称"潘大水库")位于滦河干流上,是天津市、唐山市的重要饮用水水源地,研究其水体污染特征对两库的供水安全具有重要意义。本研究基于2006~2014年潘大水库水环境因子的调查,采用综合水质标识指数法对潘大水库水质状况进行分析评价。结果表明:潘大水库污染严重,远高于国内其它饮用水源地。在空间上,处于上游的潘家口水库呈现出从上游到下游污染程度逐渐降低的趋势,而大黑汀水库则表现出从上游到下游污染逐渐加重的趋势,表明大黑汀水库来自于水库内部的污染对其污染程度有较大的贡献。

Panjiakou and Daheiting reservoirs,located on the main stream of Luanhe River,are the important drinking water sources in Tianjin and Tangshan Cities.It is of great significance to study the water pollution characteristics of the two reservoirs.Based on the investigation of water environmental factors in Pan-Da Reservoir from 2006 to 2014,the water quality of Pan-Da Reservoir was analyzed and evaluated by comprehensive water quality marker index method.The results show that the pollution of Pan-Da Reservoir is serious,which is much higher than that of other drinking water sources in China.In space,the Panjiakou Reservoir,which is located in the upper reaches,shows a trend of decreasing pollution from the upstream to the downstream,while the Daheiting Reservoir shows a trend of increasing pollution from the upstream to the downstream.It shows that the pollution of Daheiting Reservoir from inside of the reservoir has great contribution to its pollution degree.