Smog Advisory Days

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The number of smog advisory days is known to have a negative impact on breathing, especially for the elderly, young children and those with respiratory problems. While the number of days was low in 2003 and 2004, they reached a peak of 45 days in 2005 in Niagara and southern Ontario and were at 29 days in 2007, which is still much higher than the period prior to 2005.

 

Figure 3 Smog Days in Selected Areas 

Source: http://www.airqualityontario.com/press/smog_advisories.cfm

 

 

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