Air Quality
Sources of Airborne Particulate Matter
Sources from Natural Processes
- Dust and soil
- Sea salt
- Forest fire smoke
- Pollen, spores, mold
- Livestock
Sources from Human Activities
- Automobiles
- Buses
- Boats
- Trucks
- Airplanes
- Construction Equipment
- Lawn mowers, snow blowers
- Heating furnaces
- Factories
- Incinerators
- Power plants
- Mining
- Tobacco smoke
- Cooking smoke
