Ontario Medical Association, Health Effects of Ground-Level Ozone, Acid Aerosols & Particulate Matter (Toronto, May 1998). page 5.
  Ontario Medical Association, Health Effects of Ground-Level Ozone, Acid Aerosols & Particulate Matter (Toronto, May 1998)
  Environics International, Presentation to Toronto Environmental Task Force, 1998
  Ontario Inhalable Particulates/Respiratory Particulates Workgroup, 1996 Bulletin on inhalable and respirable particulates (IP & RP), IP/RP Progress Note #1, prepared for Ontario Smog Plan by IP/RP Strategy Working Group, Chair Dr. David Pengelly.
  Healthy City  Office, City of Toronto, Smog: Make It or Break It, (Toronto, April 1998)
  Ontario Medical Association, Health Effects of Ground-Level Ozone, Acid Aerosols & Particulate Matter (Toronto, May 1998)
  Toronto Sun, T.O.’s air the deadliest in Canada: Study, March 9, 1999
  CBC Television, Ontario Minister of Transportation, Tony Clement’s statement in response to the strike by Toronto Transit Commission employees., April 19, 1999.
  Toronto Sun, Clean up act, Mel tells T.O., May 11, 1999
  Ontario Medical Association, Health Effects of Ground-Level Ozone, Acid Aerosols & Particulate Matter (Toronto, May 1998)
  Associated Press, Clinton on radio say new rules can clean air at modest cost, May 2, 1999
  Natural Resources Defense Council, Exhausted by Diesel: How America’s Dependence on Diesel Threatens Our Heath, (New York & Sante Fe Springs, CA 1998)
  David Suzuki Foundation, Taking Our Breath Away The Health Effects of Air Pollution & Climate Change, (Vancouver, October 1998), p18
  Natural Resources Defense Council, Exhausted by Diesel: How America’s Dependence on Diesel Threatens Our Heath, (New York & Sante Fe Springs, CA 1998)
  Based on estimate by THC3
  United States Environmental Protection Agency, Fact Sheet: Health and Environmental Effects of Ground-Level Ozone, (Washington, D.C. July 17, 1997).
  Ontario Medical Association, Health Effects of Ground-Level Ozone, Acid Aerosols & Particulate Matter (Toronto, May 1998)
  Ontario Medical Association, Health Effects of Ground-Level Ozone, Acid Aerosols & Particulate Matter (Toronto, May 1998)
  Natural Resources Defense Council, Our Children at Risk: The Five Worst Environmental Threats to Their Health, (New York & Sante Fe Springs, CA 1998) Chapter 4.
  Natural Resources Defense Council, Our Children at Risk, Chapter 4.
  Ontario Medical Association, Health Effects of Ground-Level Ozone, Acid Aerosols & Particulate Matter (Toronto, May 1998)
  Natural Life Magazine #38, Are Smoggy Skies Affecting Your Health? , (July 1994)
  Ontario Medical Association, Health Effects of Ground-Level Ozone, Acid Aerosols & Particulate Matter (Toronto, May 1998)
  Ontario Medical Association, Health Effects of Ground-Level Ozone, Acid Aerosols & Particulate Matter (Toronto, May 1998)
  Ontario Medical Association, Health Effects of Ground-Level Ozone, Acid Aerosols & Particulate Matter (Toronto, May 1998)
  Natural Resources Defense Council, Our Children at Risk, Chapter 4.
  Globe and Mail, Main smog ingredient believed deadly at levels less than one-fifth of guideline, report says, (Toronto March 9, 1999)
  Globe and Mail, Main smog ingredient believed deadly at levels less than one-fifth of guideline, report says, (Toronto March 9, 1999)
  Toronto Sun, T.O.’s air the deadliest in Canada: Study, March 9, 1999
  Federal-Provincial Working Group on Air Quality Objectives, National Ambient Air Quality Objectives for Particulate Matter: Science Review Document, 1997
  Globe and Mail, Ontario study links early deaths to smog particles, (Toronto May 13, 1999).
  Environmental Defense Fund (EDF), Press Release, “Most Americans Face Air Cancer Risk 100 Times Higher Than Congress’ Goal,” (New York, April 20, 1999).
  Environmental Defense Fund (EDF), Press Release, “Most Americans Face Air Cancer Risk 100 Times Higher Than Congress’ Goal,” (New York, April 20, 1999).
  Natural Resources Defense Council, Exhausted by Diesel: How America’s Dependence on Diesel Threatens Our Heath, (New York & Sante Fe Springs, CA 1998)
  Natural Resources Defense Council, Exhausted by Diesel: How America’s Dependence on Diesel Threatens Our Heath, (New York & Sante Fe Springs, CA 1998)
  Natural Resources Defense Council, Exhausted by Diesel: How America’s Dependence on Diesel Threatens Our Heath, (New York & Sante Fe Springs, CA 1998)
  World Health Organization Press Release, Averting the Three Outriders of the Transport Apocalypse: Road Accidents, Air and Noise Pollution, (Geneva, Switzerland, July 31, 1998).
  Natural Resources Defense Council, Exhausted by Diesel: How America’s Dependence on Diesel Threatens Our Heath, (New York & Sante Fe Springs, CA 1998)
  Natural Resources Defense Council, Exhausted by Diesel: How America’s Dependence on Diesel Threatens Our Heath, (New York & Sante Fe Springs, CA 1998)
  Natural Resources Defense Council, Exhausted by Diesel: How America’s Dependence on Diesel Threatens Our Heath, (New York & Sante Fe Springs, CA 1998)
  Natural Resources Defense Council, Exhausted by Diesel: How America’s Dependence on Diesel Threatens Our Heath, (New York & Sante Fe Springs, CA 1998)
  Ministry Of Environment of Ontario, Ontario Smog Rover Reports, (Toronto, 1998)
  Healthy City  Office, City of Toronto, Smog: Make It or Break It, (Toronto, April 1998)
  Bergen Record, New Jersey Transit offers $2 trips on ozone alert days, May 27, 1999
  David Suzuki Foundation, Taking Our Breath Away The Health Effects of Air Pollution & Climate Change, (Vancouver, October 1998), p32
  Ontario Medical Association, Health Effects of Ground-Level Ozone, Acid Aerosols & Particulate Matter (Toronto, May 1998).
  Environmental Commissioner of Ontario, “Open Doors: 1998 Annual Report” (Toronto 1999), p23
  Environmental Commissioner of Ontario, “Open Doors: 1998 Annual Report”, (Toronto 1999) p23
  Environmental Commissioner of Ontario, “Open Doors: 1998 Annual Report”, (Toronto 1999) p87
  David Suzuki Foundation, Taking Our Breath Away The Health Effects of Air Pollution & Climate Change, (Vancouver, October 1998), p39
  Sierra Legal Defense Fund, Backgrounder for Press Release, Ontario Government Breaking its own Air Pollution Laws: The Result? 1800 unnecessary Deaths each Year, (Toronto, May 17, 1999)
  Sierra Legal Defense Fund, Backgrounder for Press Release, Ontario Government Breaking its own Air Pollution Laws: The Result? 1800 unnecessary Deaths each Year, (Toronto, May 17, 1999)
  Toronto Star Editorial, Cutting Pollution, (December 18, 1998)
  Environmental Commissioner of Ontario, “Open Doors: 1998 Annual Report” , (Toronto 1999)
  Ontario Ministry of the Environment News release, Harris Takes Tough Stand Against U.S. Polluters, (Toronto February 10, 1999).
  Toronto Star Editorial, Harris flunks own clean air test, (Toronto February 14, 1999)
  Environmental Commissioner of Ontario, “Open Doors: 1998 Annual Report”, (Toronto 1999)
  Toronto Star, Pollution bill sparks criticism, (Toronto May 12, 1999)
  David Suzuki Foundation, Taking Our Breath Away The Health Effects of Air Pollution & Climate Change, (Vancouver, October 1998), p40.
  Now Magazine Couriers Cream GM
  Ontario Medical Association, Health Effects of Ground-Level Ozone, Acid Aerosols & Particulate Matter (Toronto, May 1998)
  Environmental Commissioner of Ontario, “Open Doors: 1998 Annual Report”, (Toronto 1999) p100
  Ontario Medical Association, Health Effects of Ground-Level Ozone, Acid Aerosols & Particulate Matter (Toronto, May 1998),  page 3.