Comparison of particulate matter types and health effects.
Definition: Ultra-fine particles (<1 micron)
Sources:
Combustion, wildfire smoke, industrial emissions
Health Effects:
Can penetrate deep into lungs and bloodstream. Linked to systemic inflammation.
Definition: Fine inhalable particles
Sources:
Vehicles, power plants, burning fuel
Health Effects:
Asthma, reduced lung function, cardiovascular strain
Definition: Coarse particles (<10 microns)
Sources:
Dust, pollen, construction sites
Health Effects:
Nose/throat irritation, respiratory discomfort