Open burning
Cigarettes
Forest fires
Construction sites
Asbestos factories
Limestone quarries
Agriculture and plantation activities
Air-conditioners
Refrigerators
Aerosol sprays
Electronic factories
Nuclear power plants
Exhaust of vehicles
Factories
Smoke, soot, dust, carbon monoxide
Health
Buildings and infrastructures
Plants and animals
Climate
Law enforcement
Education
Science and Technology
Get your homework done with live tutors’ help