Number of days air quality reported poor or moderate

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The number of days the AQI was moderate to poor was high in 2007 at 83 days and went down in 2008 and 2009 to a low of 30 days and came back up again in 2010 slightly to 62 days.

Figure 3.9  Number of days AQI reported moderate to poor by selected geography

 

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

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