Elemental Composition of Airborne Particulates And Source Identification: Data Analysis Techniques

Elemental Composition of Airborne Particulate Matter from Santiago City, Chile, 1976

“…Our values are smaller than Neustadter et al 9 due to the presence in Santiago of only one coal-fired power plant (Zn, As, Sb, Cl), and the existence of only a small number of Al smelting works (Cl). Br is probably emitted from gasoline motor vehicles.…”

Study of air pollution scavenging. Fifteenth progress report. [Air pollution over St. Louis, Missouri and rural Illinois]

“…Many studies of the chemical composition of urban aerosols have identified soil-derived aerosols as an important component (Dams et al, 1971;John et al, 1973;Hammerle and Pierson, 1975;Neustadter et al, 1976;Perone et al, 1976;. This component typically includes Al, Si, K, Ca, Sc, Ti, Mn, Fe, and some rare earths (La, Ce, Sm, Eu, Th).…”

Sources of Environmentally Important Metals in the Atmosphere

“…Efforts were made to compare the airborne trace element profile with the trace element profiles of various sources, assuming that each type of source emits a characteristic distribution of a set of elements. Using a combination of pair-wise correlation statistics, cluster analysis algorithms, enrichment factors, and pollutant concentra tion sources, Neustadter et al (60) were able to identify many of the specific sources of environmentally important metals in Cleveland: earth's crust (titanium, vanadium, and tin), automotive exhaust (lead), metal lurgy (iron and chromium), and specific industries (antimony and mer cury). Friedlander (61) found that greater than 72% of the aerosol in Pasadena air originated from sea salt, soil, auto exhaust, fuel oil, fly ash, and cement dust.…”