江西省2021年地下水水质现状分析评价

根据2021年收集到的江西省47口地下水监测井的实测数据，利用地下水单项组分和综合评价法，进行了地下水水质现状的评价，确定了水质类别和级别，评价为V类水和极差水占比均达到了50%以上。另选用内梅罗综合污染指数法进行地下水污染程度分析，确定了其主要污染因子为铁、锰、氨氮、挥发性酚，统计出全省有80%的地下水监测井受到了不同程度的污染，分布于省内各地区，同时提出了相应的防治对策。

Analysis and evaluation of the current situation of groundwater quality in Jiangxi province in 2021

Based on the measured data of 47 groundwater monitoring wells in Jiangxi province collected in 2021,the present situation of groundwater quality was evaluated by using the method of single component and comprehensive evaluation,and the category and grade of water quality were determined,more than 50% of the samples were rated as class V or very poor.The main pollution factors were determined as iron,manganese,ammonia nitrogen and volatile phenol.Statistics show that 80% of the monitoring wells of the whole province have been polluted in different degrees,distributed in various regions of the province,and the corresponding control countermeasures are put forward.