环境空气和废气中非甲烷总烃监测技术探究

Exploration of Nonmethane Hydrocarbons Monitoring Technology in Ambient Air and Exhaust Gas

许多国家、地方和行业标准都采用非甲烷总烃指示挥发性有机物的排放情况。在环境监测领域,非甲烷总烃的监测技术主要有实验室人工监测、现场便携式仪器监测和在线连续监测三种。实验室人工监测具有检出限低、技术成熟等优点;现场便携式仪器监测具有分析周期短、使用灵活便捷、应用场景广泛等优点;在线连续监测具有实时高效、数据精确、操作简便等优点。

Many national,local and industrial standards adopt NMHC to indicate the emission of VOCs.In the field of environmental monitoring,there are mainly three types of NMHC monitoring techniques:laboratory manual monitoring,on-site portable instrumentation monitoring and on-line continuous monitoring.Laboratory manual monitoring has the advantages of low detection limit and mature technology;on-site portable instrument monitoring has the advantages of short analysis cycle,flexible and convenient use,and wide range of application scenarios;and on-line continuous monitoring has the advantages of real-time efficiency,accurate data,and easy operation.