Image
School buses and cars in traffic with exhaust visibly escaping their vehicles
Hazard

Air Quality

Air quality reflects the abundance of pollution present in air. Pollution is a mix of hazardous substances from both human-made and natural sources. Primary sources of human-made air pollution include vehicle emissions, fuel oils and natural gas to heat homes, by-products of manufacturing and power generation—particularly coal-fueled power plants—and fumes from chemical production.

Read Full Summary
Image
""
  • Photo attributed to Lazy Lightning. Incorporated here under the Creative Commons Attribution 2.0 Generic license. No endorsement by licensor implied.

  • Image
  •   The Milwaukee Skyline in Smog, by Jeramey Jannene, via Flickr. Used via Creative Commons License CC BY 2.0.