某江河流域水体中重金属污染监测分析与研究  

Monitoring, Analysis and Research on Heavy Metal Pollution in Water Bodies of a Certain River Basin

作　　者：吴鹏程 Wu Pengcheng(YunceTechnology(Shenzhen)Co.,Ltd.,Shenzhen Guangdong 518000,China)

机构地区：[1]云测检测技术(深圳)有限公司,广东深圳518000

出　　处：《山西化工》2024年第9期213-215,223,共4页Shanxi Chemical Industry

摘　　要：某江河流域属于珠江流域的重点水系之一,富含大量矿产资源,这导致流域水体中的重金属会存在超标的现象。本文以该流域上下游为采样点,对水体中的重金属污染进行监测,对水体的基本水质进行分析,重点研究重金属的空间分布、时空分布以及重金属的水期变化特征。结果表明:水体的水温、pH、电导率以及溶解氧都出现了明显的季节性波动,这主要与降水量有关,而溶解氧随着水温的变化而变化。重金属的空间分布呈现出锌﹥铜﹥铅﹥镉,上游和下游分布一致,而四种重金属的浓度随时间以及水汽的变化各不相同。该流域重金属浓度达到GB 3838—2002《地表水环境质量标准》规定的Ⅱ类限值,符合世界卫生组织《饮用水水质准则》,可作为该区域饮用水的补充水源。A river basin belongs to one of the key water systems of the the Pearl River basin,which is rich in a large number of mineral resources,which leads to the phenomenon that the heavy metals in the water body of the basin will exceed the standard.This article takes the upstream and downstream of the watershed as sampling points to monitor heavy metal pollution in the water body,analyze the basic water quality of the water body,and focus on the spatial and temporal distribution of heavy metals,as well as the water period variation characteristics of heavy metals.The results showed that there were significant seasonal fluctuations in water temperature,pH,conductivity,and dissolved oxygen,which were mainly related to precipitation,while dissolved oxygen varied with changes in water temperature.The spatial distribution of heavy metals shows zinc>copper>lead>cadmium,with consistent upstream and downstream distribution,while the concentrations of the four heavy metals vary with time and changes in water vapor.The concentration of heavy metals in this watershed has reached the Class Ⅱ limit specified in GB 3838-2002 Environmental Quality Standards for Surface Water,which complies with the World Health Organization's Guidelines for Drinking Water Quality and can be used as a supplementary water source for drinking water in the region.

关 键 词：江河流域水体 重金属 监测 

分 类 号：X522[环境科学与工程—环境工程]