- suspended particulate matter
- tiny particles
- solid
- liquid
- tendency to remain afloat
- includes:
- dust, pollens
- fumes(s) , mist(l)
- micro-organisms (bacteria & viruses)
- cause airborne
- Aerosol
- tendency ➡️ remain suspended
- 0.5 µm - 500µm
Classification
PM 10
- <10µm
- respiratory disorders
PM 2.5
- <2.5µm
- cardiovascular disorders
PM 1
- <1µm
- most dangerous
- body can’t filter
- neurological & cardiovascular disorders
- Teratogen Disorders