Optical Environmental Monitoring in Industry

Robert L. Spellicy

Title I of the Clean Air Act (CAA) amendments of 1990 imposes upon industry and government the responsibility to gather data vital to the development of appropriate control strategies as well as to demonstrate compliance with the National Ambient Air Quality Standards (NAAQS). Title III of the Act requires ongoing programs to assess, reduce, and control hazardous air pollutants, while Title V requires the reduction, control, and monitoring of gases contributing to acidic aerosol production. One of the significant aspects of the CAA is its attention to multiple hazardous air pollutants (HAPS) rather than the more traditional focus on a limited number of so-called criteria pollutants. The Act imposes challenging air monitoring requirements, and it appears that traditional technologies may not be adequate to meet them.

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