We are estimating that with the improvement that would be generated by the targets we are putting on the table for air pollution, we would have an air quality improvement benefit estimated at $6 billion annually, and there would be reduced occurrences of illnesses across the country. We would have an estimated 1,200 fewer deaths; an estimated 172,000 fewer asthma person days; and 5,600 fewer cases of child acute bronchitis. We did an evaluation of the benefits of going ahead with substantial reductions of air pollutant emissions and the direct impact on the health of citizens of Canada.
On May 16th, 2007. See this statement in context.