Research basis and application advance on identifying pollution sources of water NO3-
The NO3-pollution has become one of the main issues in the water environment research area worldwide.Identifying the pollution sources of surface water and groundwater NO3-facili-tates the prevention and control of NO3-pollution.Therefore,this study summarized the main analysis bases regarding the evaluation of pollution sources of water NO3-,including the envi-ronmental isotopes,microorganisms,and isotopic mixing models.Furthermore,the application sta-tus of these research bases was presented.This study is aimed to provide scientific basis for the quantitative contributions of NO3-pollution sources in water.