Examination of 1982-1983 Particulate Matter Ratios and Their Use in the Estimation of PM10 (10 Micrometers) NAAQS (National Ambient Air Quality Standards) Attainment Status

摘要

The U. S. Environmental Protection Agency is proposing new short- and long-term National Ambient Air Quality Standards (NAAQS) for particulate matter having an aerodynamic diameter of less than 10 micrometers (PM(sub 10)). The current NAAQS for particulate matter refers to total suspended particulate matter (TSP) concentrations without a size specification. Until (PM(sub 10)) data are more widely available, TSP monitoring data must be used to estimate the likelihood of attainment of the (PM(sub 10)) NAAQS. Pace and Frank (1984) have developed a method for estimating that likelihood. Their approach relies on the distributions of particulate matter ratios.