Air pollution refers to the introduction of chemicals, particulate matter, or biological materials to the air which have the potential of causing harm or discomfort to humans or other living beings, or of causing damage to the natural environment.
Recommended Resources
AIRNow was developed by the Environmental Protection Agency, the National Oceanic and Atmospheric Administration, the National Park Service, and various tribal, state and local agencies, as a means of providing the public with access to national air quality information. Its site offers AQI forecasts as well as real-time AQI conditions for cities across the United States.
http://airnow.gov/
Sponsored and maintained by the National Association of Clean Air Agencies, this site features information about air pollution, including news and facts about significant air topics and links to government air pollution control agencies throughout the world.
http://www.cleanairworld.org/
Sponsored by a number of hiking and mountain clubs, the purpose of this organization is to promote awareness and support among the hiking community in the United States for legislation and regulatory initiatives aimed at a reduction of air pollutants such as sulfur dioxides and nitrogen oxides in order to protect the hiking experience and protect the environment. Its issues and advocacy activities are discussed.
http://www.hikersforcleanair.org/
UK National Air Quality Archive
Air quality resources for the United Kingdom available here include a summary of the latest air pollution levels, with bulletins updated hourly, along with forecasts, an annual air pollution report and other data.
http://www.airquality.co.uk/
