New Monitoring Method and Application of Solar Vehicular FTIR in Air Pollution Emission Distribution

A new method of real-time monitoring air pollution emission column concentration distribution was put forward in chemical plant by self-developed vehicular FTIR system. The method and model about background reference spectra, measured spectra and how to get closed loop atmospheric transmittance surrounding pollution area were introduced. The column concentration on specific measured position was inversed with fitting spectra based on standard spectral database, the atmospheric transmittance in each measured location and nonlinear least squares fitting algorithm (NLLS). With this system and method, remote sensing emission distribution of ethylene column concentration for the chemical industrial zone was done in Shanghai. The measured results were consistent with the emission distribution of industrial pollution sources. Comparing with other environmental monitoring methods, the characteristics of regional monitoring ability, simple operation, maneuverability were obvious. There were great application prospects on controlling pollution emissions and environment contingency monitoring.