Indoor Air Pollution Sources

This chart lists the most common pollutants found in homes and buildings today.

Category	Pollutants	Sources
Particulate	Dust	Humans, drapes, outdoor air
Particulate	Pollen	Clothing, outdoor air, pets
Particulate	Tobacco Smoke, Hydrocarbons	Smokers
Particulate	Dander	Humans, pets
Microbial	Mold Spores	HVAC ducts, carpets, outdoor air
Microbial	Bacteria	Waste containers, toilets, humans, A/C coils & ducts
Microbial	Fungi	Pets, foods, outdoor air, waste containers
Gas	Methyl mercaptan	Plastic, natural gas and propane additive
Gas	Carbon disulfide	Solvents
Gas	Butyl acetate	Lacquer, industrial chemicals
Gas	Methyl mthacrylate	Solvents
Gas	MEK	Solvents
Gas	d-limonene	Solvents
Gas	Toluene	Solvents
Gas	Hydrogen sulfide	Toilet vents, water

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