NWT Air Quality Report (2011) - Environment and Natural ...
NWT Air Quality Report (2011) - Environment and Natural ...
NWT Air Quality Report (2011) - Environment and Natural ...
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Norman Wells<strong>Air</strong> <strong>Quality</strong>The focus of the monitoring station in NormanWells is to gather baseline community air qualityinformation <strong>and</strong> to track trends <strong>and</strong> cumulativeeffects of pollutant sources over time.The station is located at the ENR compound onForestry Drive <strong>and</strong> measures PM 2.5, PM 10, SO 2, O 3,NO 2<strong>and</strong> H 2S. It has been in operation since 2003.Fine Particulate (PM 2.5)The maximum daily average concentration of PM 2.5in Norman Wells in <strong>2011</strong> was 22.1μg/m 3 <strong>and</strong> theannual average was 4.7μg/m 3 . There were noexceedances of the <strong>NWT</strong> 24-hour st<strong>and</strong>ard forPM 2.5(30μg/m 3 ). The elevated readings measured in June <strong>and</strong> July are attributed to dustyconditions in June <strong>and</strong> smoke from forest fires burning near Fort Good Hope, Délı̨ne <strong>and</strong> at25 Mile Lake in the month of July.Figure 20: <strong>2011</strong> Norman Wells BAM PM 2.58.0(μg/m 3 )25.0Monthly Average7.06.05.04.03.02.01.020.015.010.05.0Maximum Daily Average0.0J F M A M J J A S O N D0.0Monthly AverageMaximum Daily AverageFigure 20 shows the monthly averages <strong>and</strong> maximum daily averages of PM 2.5measuredfrom the BAM at the Norman Wells station in <strong>2011</strong>. The elevated readings in the summerare typical <strong>and</strong> are associated with the forest fire season.26 <strong>NWT</strong> <strong>Air</strong> <strong>Quality</strong> <strong>Report</strong> <strong>2011</strong>
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