Air Pollution
   Air Pollution links from About.com
   http://weather.about.com/cs/acidrain/index.htm

Air Quality Forecasts- USA
   Ozone, Wildfire, Air Stagnation
   http://www.arl.noaa.gov/ready/aq.html

National Allergy Bureau
   Get the latest pollen/spore counts.
   http://www.aaaai.org/nab/

Personal Allergy Forecast
   Pollen.com's Personal Allergy Alert Forecast provides vast amounts of information on pollen and allergies for sufferers. Get a daily allergy forecast emailed to you.
   http://www.pollen.com/

WeatherSmith
   Air quality forecasts and related information for the southwestern United States
   http://www.weathersmith.com/Index.html