WHAT IS condensable particulate matter?
Condensable particulate matter; that matter which exists as a vapor at stack conditions but exists as a liquid or a solid after exiting the stack and being cooled by ambient conditions.
What is PM 2.5 pollutant?
PM 2.5 refers to a category of particulate pollutant that is 2.5 microns or smaller in size. The average cross-section of a human hair is 50 microns.
What is PM 2.5 and how is it formed?
PM2.5 material is primarily formed from chemical reactions in the atmosphere and through fuel combustion. Major sources of PM2.5 include motor vehicles, smelters, power plants, industrial facilities, residential fireplaces and wood stoves, agricultural burning and forest fires.
Can PM2 5 be greater than PM10?
5 concentrations are often higher than pm10 concentrations. Aren’t PM smaller than 2.5 micro included in PM smaller than 10 micro? Severine’s question is totally correct: PM2.5 are, by definition, particulates smaller than 2.5 micrometers, so indeed, they should also be included as smaller than 10 micrometers.
How do you calculate particulate matter emissions?
For PM/PM10/PM2. 5 and particulate HAPs, use the following equation: Emission Rate [lb/hr] = maximum pollutant content [lb/gal] x maximum coating application rate [gal/hour] x (1-transfer efficiency)
How long does PM 2.5 stay in the body?
5 particles can travel? The smaller particles are lighter and they stay in the air longer and travel farther. PM10 (big) particles can stay in the air for minutes or hours while PM2. 5 (small) particles can stay in the air for days or weeks.
How does a PM 2.5 filter compare to N95?
The 2.5 in PM2. 5 refers to the size of the pollutant in microns. N95 masks filter 95 % of all particulates with a size of approximately 0.3 microns. So a N95 mask can offer a better fit and filter much better than a PM2.