The aim was to evaluate whenever the location of air inlet has influence on the formation of
particulate matter.
* When fine
particulate matter levels are high, take steps to keep indoor air as clean as possible through measures such as avoiding tobacco smoke, keeping windows closed, using room air cleaners and filters, turning on the air conditioning, and refraining from vacuuming and using fireplaces, candles, and even gas appliances, if possible.
Additional details on
particulate matter, including testing information, can be found at the NEA Health Information Network Web site: www.neahin.org.
Conventional filter bags are the most commonly accepted method used to capture fine
particulate matter for air pollution control.
Fine
particulate matter emitted from diesel fuel has a diameter of less than 2.5 micrometers, and is commonly referred to as PM 2.5.
Diesel
Particulate Matter Sampling Methods: Statistical Comparison.
For small passenger cars, permitted emissions will be reduced by 62 percent for
particulate matter to 0.005 gram per kilometer and 43 percent for nitrogen oxides to 0.08 gram per km.
Natural gas heaters are very efficient and produce less than 1 gram of
particulate matter per hour.
Environmental Protection Agency to improve air quality monitoring and better determine how airborne
particulate matter may affect human health.
Biological pollutants including molds, bacteria dust mites, and animal dander are sources of
particulate matter that promote poor indoor air quality.
The air quality in Japan improved last year in terms of the amount of suspended
particulate matter and nitrogen dioxide but scientists believe the improvement was merely the result of weather factors, the Environment Agency said Friday.
The EPA has announced a two-stage strategy to reduce by more than 90 percent the smog-causing nitrogen oxides and
particulate matter from heavy-duty trucks and the largest sport utility vehicles.