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
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.