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{{Wikipedia}} | |||
==Definition== | ==Definition== | ||
Particulates are little particles that float around in the atmosphere. They can either be solid or semi-solid. We usually see this in terms of haze or smog. | Particulates are little particles that float around in the atmosphere. They can either be solid or semi-solid. We usually see this in terms of haze or smog. | ||
Revision as of 15:02, 18 October 2007
Definition
Particulates are little particles that float around in the atmosphere. They can either be solid or semi-solid. We usually see this in terms of haze or smog.
Where Do They Come From?
*wind blown dust particles from roads, fields and construction *coal dust, fly ash, and combustion from various combustion sources *automobile exhaust
Particle Size
- less than 0.1 micrometer up to 45 micrometers: total suspended particles
- larger particles seem to not remain suspended in the air
Is it Bad for You?
- The nose filters out roughly 99% of particulate matter
- Can cause respiratory problems as well as Lung Cancer
--Pmthomas99 13:51, 10 October 2007 (PDT)