Florida Department of Environmental Protection
http://www.dep.state.fl.us/air/
Clean Air Florida
http://www.dep.state.fl.us/air/cleanair.htm
Air Quality Guide for Ozone
http://airnow.gov/index.cfm?action=static.consumer
Foundation for Clean Air Progress
http://www.cleanairprogress.org/index.asp
Nitrogen Oxides (NOx), Why and How They Are Controlled
http://www.epa.gov/ttncatc1/dir1/fnoxdoc.pdf
How nitrogen oxides affect the way we live and breathe
http://www.epa.gov/oar/noxfldr.pdf
Health and Environmental Impact of Nox
http://www.epa.gov/air/urbanair/nox/hlth.html
EPA's Efforts to Reduce Nitrogen Oxides
http://www.epa.gov/air/urbanair/nox/effrt.html
The Plain English Guide to the Clean Air Act
http://www.epa.gov/air/oaqps/peg_caa/pegcaain.html
http://www.epa.gov/iris/subst/0080.htm
