【摘要】 本研究选取合肥市南淝河为研究对象,通过实测数据反映南淝河上覆水体中烷基汞的整体含量水平和分布特点,以期为南淝河水质调查与污染控制填补数据空白。结果表明,南淝河上覆水体中甲基汞含量总体水平远低于《地表水环境质量标准》(GB3838—2002)中所规定的集中式生活饮用水地表水源地的甲基汞浓度限值1.0 ng/L,与国内其他自然环境水体相比处于较低水平,乙基汞未检出。不同监测断面甲基汞的浓度水平差异较大,在空间上表现为中游断面>下游断面>上游断面,在时间上表现为:丰水期>平水期>枯水期。更多还原

【Abstract】 This study selects Nanfei River as the research object. Based on the measured data,the overall content and distribution characteristics of alkylmercury in Nanfei River are reflected. In order to provide data support for water quality investigation and pollution control of Nanfei River. The results show that the overall level of methylmercury in the overlying water of Nanfei River is far lower than the limit value of 1.0 ng/L for methylmercury concentration in the surface water source of centralized drinking water as specified in Environmental Quality Standards for Surface Water( GB3838—2002),which is lower than that of other natural waters in China; ethylmercury is not detected. The concentration levels of methylmercury in different monitoring sections are quite different, and the spatial representation is: midstream section > downstream section > upstream section. The methylmercuryconcentration level in time showed: wet season> temperate season> dry season.更多还原