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BATTERY POWERED PM-10 INDOOR AIR SAMPLERS APPLIED TO UNVENTED THIRD WORLD RESIDENTIAL COMBUSTION SOURCES
Citation:
Harris, D., R. Chapman, AND J. Mumford. BATTERY POWERED PM-10 INDOOR AIR SAMPLERS APPLIED TO UNVENTED THIRD WORLD RESIDENTIAL COMBUSTION SOURCES. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/A-94/131 (NTIS PB94190998).
Description:
The paper discusses a battery-powered PM-10 indoor air sampler applied to unvented Third World residential combustion sources. (NOTE: Specialized PM-10 sampling systems have been developed and used in support of a joint U.S. EPA/People's Republic of China Institute of Environmental Health and Engineering etiologic study of lung cancer in a rural Chinese county.) The limited availability of reliable electric power away from the main towns meant that battery-powered systems were needed to collect integrated samples of the actual indoor exposure. he samplers incorporate horizontal elutriator PM-10 inlets and 8 by 10 in. (20 by 25 cm) filters for large sample capacity at low system pressure drop. equirement for an integrated 24-hour sample meant that the usual Ni-Cd battery of the 4 L/min personal sampling pump was replaced by a Pb-acid gelled-electrolyte unit. hese samplers, which have been used to develop emissions chemical and bioassay data for coals from several mines as well as emissions variability within each coal type, are described and typical data collected are presented. ew version using a 12 L/min pumping system is also described.