美国EPA推荐最新气体排放监测的新方法，采用光学遥测方法监测。

重点推荐了OP-FTIR的RPM（Radial Plume Mapping）方法，监测挥发性有机物VOCs、多环芳香烃PAHs、烟气和温室气体排放。

This protocol provides the user with methodologies for characterizing gaseous emissions from non-point pollutant sources. These methodologies use an open-path, Path-Integrated Optical Remote Sensing (PI-ORS) system in multiple beam configurations to directly identify “hot spots” and measure emission fluxes. Basic knowledge of a PI-ORS system and the ability to obtain quality path-integrated concentration (PIC) data is assumed. The user must be capable of using commercial software to utilize the procedures and algorithms explained in this protocol. The methodologies in this protocol have been well developed, evaluated, demonstrated,
validated, and peer-reviewed