Climate and Atmospheric Science - Toxic Air Pollutants, Illinois State Water Survey

Climate and Atmospheric Science

Toxic Air Pollutants

Clyde Sweet
Toxic Air Pollutants

Beginning in 1985, measurements of toxic air pollutants have been made at the Bondville Environmental and Atmospheric Research Site (BEARS) as part of several regional and national monitoring programs. Concentrations of a variety of toxic chemicals both in precipitation (rain and snow) as well as in the gas phase and bound to airborne particles have been measured at BEARS as part of many different projects. Target chemical species include toxic trace elements (copper, chromium, zinc, manganese, vanadium, nickel, lead, arsenic, selenium, cadmium, mercury).

Currently, Bondville is a site in the National Atmospheric Deposition Program Mercury Deposition Network (MDN). Organic pollutants that have been measured at Bondville include volatile organic chemicals (VOCs) such as benzene, toluene, xylene, dichloroethylene, methylchloroform, perchloroethylene, and other chlorinated VOCs. Atrazine and other agricultural herbicides have been measured in air and rain at Bondville. The list of analytes also includes a wide variety of persistent toxic organic pollutants such as polychlorinated biphenyls (PCBs), DDT, dieldrin, lindane, chlordanes, and other chlorinated pesticides, and polyaromatic hydrocarbons (PAHs). At the present time, a project is underway at BEARS to monitor and characterize the chemical species in airborne fine particles (PM-2.5). Data from past projects is available in several reports and publications listed in the BEARS Web page bibliography.

Also See: Air Quality and Chemistry

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