PM-10 exhaust samples collected during IM-240 dynamometer tests of in-service vehicles in Nevada

Article Abstract:

Evaluation of polynuclear aromatic hydrocarbons (PAH) contained in vehicle emissions were done on twenty-three light-duty gasoline in-use vehicles in Nevada during the 1994 Clark and Washoe Remote Sensing Study. The Environmental Protection Agency (EPA) estimates vehicle emissions to account for only 3% of the national total of emissions of particulate matters with an aerodynamic diameter of 10 micrometers or less (PM-10). The EPA sets the annual arithmetic mean of PM-10 emissions at 50 micrograms per cubic meter. However, results of the loaded-mode IM240 cycle testing utilizing a transportable dynamometer show total PAH emissions of the twenty-three light-duty vehicles to be at the range of 10-200 mg/mi.

Research and Development in the Physical, Engineering, and Life Sciences, Air Pollution Control R&D, Air pollution research, Pollution control research, Polycyclic aromatic compounds, Air quality

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Chemical mass balance source apportionment of lead in house dust

Article Abstract:

Crustal materials, deposited airborne particulates and other exterior, as well as interior sources contribute to the amount of lead present in house dust. About two-thirds of house dust lead present in urban homes is being attributed to exterior proximate sources. One-third of house dust lead present in urban homes, meanwhile, comes from interior lead-based paint sources.

Primary nonferrous metals, not elsewhere classified, Lead, Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum), Lead products, Environmental aspects, Lead based paint, Lead based paints, Dust

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Fine particle and gaseous emission rates from residential wood combustion

Article Abstract:

Researchers from the Desert Research Institute, Reno, Nevada conducted and analyzed source tests on the combustion of residential wood and quantified the mass emission and composite emission rates and profiles of more than 350 elements, inorganic and organic compounds.

United States, Science & research, Logging, Fuelwood, Research, Forest products industry, Desert Research Institute

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