多种环境示踪剂在识别地下水硝酸盐来源方面的应用

Application of Various Environmental Tracers in Identifying Nitrate Sources of Groundwater

地下水硝酸盐污染是世界各地区普遍存在的环境问题。为防控地下水硝酸盐污染,准确识别污染源和从源头控制污染排放是其防控的重要措施。在介绍硝酸盐氮、氧双同位素法(^(15)N,^(18)O)的同时,系统梳理了其它3种环境示踪剂(^(11)B^(3)H,Cl^(-))在识别地下水硝酸盐来源方面的应用。相比单一环境示踪剂而言,多种不同环境示踪剂(^(15)N,^(18)O,^(11)B,^(3)H,Cl^(-))的联合使用能够使地下水硝酸盐污染溯源准确性大幅提升,可更准确地为地下水污染防治和环境保护提供依据。

Nitrate pollution of groundwater is a common environmental problem in all parts of the world.In order to prevent and control nitrate pollution of groundwater,accurate identification of pollution sources and control of pollution discharge from the source are important measures.This paper introduces the nitrate nitrogen-oxygen double isotope method(^(15)N,^(18)O),and systematically combs the application of other three environmental tracers(^(11)B,^(3)H,Cl^(-))in identifying the source of nitrate in groundwater.Compared with a single environmental tracer,the combined use of a variety of different environmental tracers(^(15)N,^(18)O,^(11)B,^(3)H,Cl^(-))can greatly increase the accuracy of tracing the source of nitrate pollution in groundwater,which can provide a more accurate basis for groundwater pollution prevention and environmental protection.