• The World Health Organization has stated that there are no safe levels of human exposure to ground-level ozone, a key component of smog.
  
  
• Increasing hospital admissions and mortality associated with acute respiratory disease has been linked to heightened levels of airborne particulate matter, especially small particulate.
  
  
• 142,000 Canadian lakes are estimated to have been damaged by acid rain since the 1970’s.
  
  
• Persistent Organic Pollutants (POPs), such as PCBs, can travel thousands of miles in the atmosphere often settling in cool environments such as the Canadian north.
  
  
• Canada is the second highest per capita emitter of greenhouse gas in the industrialized world.

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