Why Particulate Matters

摘要

Greenhouse gases (GHGs) may be the newest pollutant regulated by EPA, but since there are no National Ambient Air Quality Standards (NAAQS) for GHGs, a facility is much more likely to be affected by particulate matter restrictions. Dispersion modeling of the various subsets of particulate matter, each with their own distinctly different makeups, often leads to changes in the design of a new facility or retrofits of existing equipment. This is especially true for the smallest size of particulate matter, PM_(2.5), since the background air quality for PM_(2.5) is often over 80 percent of the NAAQS. This leaves very little room for emissions from your facility. Therefore, it is important to understand the different types of particulate.