ABSTRACT

The original Clean Air Act responded to that public need by setting certain emissions standards that were deemed to be protective of the general population’s health. Particulate emissions standards based upon production rates, or those that resulted in acceptable ground emissions concentrations were adopted. Some of these requirements were generated through health risk assessments, dispersion models, and other statistical methods to define the levels to which potential pollution sources had to reduce their emissions. Many processes currently in use in the United States were designed without serious concern for environmental issues. This chapter focuses on Wet Scrubbers, in the interest of completeness, hybrid type systems should be mentioned. It summarizes the application of modern technology for some of the key elements of the new Clean Air Act.