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The Integrated Atmospheric Deposition Network (IADN)

Ozone/Criteria Pollutants

The six criteria pollutants ozone, carbon monoxide, nitrogen dioxide, sulfur dioxide, particulate matter and lead can make it hard to breathe and damage lungs, cause other health problems, contribute to the formation of ground-level ozone, reduce visibility in national parks and wilderness areas, and cause acid rain.

Region 5 Air Quality Page

The U.S. EPA Region 5 Air and Radiation Division, along with State, local and Tribal partners, is responsible for helping to achieve and maintain clean and breathable air in the Great Lakes area.

State of the Lakes Ecosystem Conference (SOLEC)

The Air Quality Indicator (#4176) can be found in SOLEC reports from 1999 to the present.

What Are the Six Common Air Pollutants?  (EPA Headquarters Criteria Pollutant Page)

The Clean Air Act directs the U.S. EPA to establish National Ambient Air Quality Standards for 6 common air pollutants, otherwise known as “criteria pollutants”.

U.S. EPA’s Visibility Page

In 1999, the U.S. Environmental Protection Agency announced a major effort to improve air quality in national parks and wilderness areas. The Regional Haze Rule calls for state and federal agencies to work together to improve visibility in 156 national parks and wilderness areas such as the Grand Canyon, Yosemite, the Smoky Mountains and Shenandoah. The rule requires the states, in coordination with the U.S. EPA, the National Park Service, U.S. Fish and Wildlife Service, the U.S. Forest Service, and other interested parties, to develop and implement air quality protection plans to reduce the pollution that causes visibility impairment.

Ontario Ministry of the Environment Air Quality Page

Ontario’s Ministry of the Environment (MOE) has been protecting Ontario’s air quality for over 30 years. Using stringent regulations, targeted enforcement and a variety of innovative air quality initiatives, the ministry continues to address air pollution that has local, regional and/or global effects.