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.
In water, particulates are referred to as suspended solids.
Origin[edit | edit source]
- wind blown dust particles from roads, fields and construction
- coal dust, fly ash, and combustion from various combustion sources
- automobile exhaust
Particle size[edit | edit source]
- less than 0.1 micrometer up to 45 micrometers: total suspended particles
- larger particles seem to not remain suspended in the air
Effects on health[edit | edit source]
- The nose filters out roughly 99% of particulate matter
- Can cause respiratory problems as well as Lung Cancer
