NWT Air Quality Report (2011) - Environment and Natural ...

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Nitrogen Dioxide (NO 2)The NO 2results for Inuvik in 2011 show that the maximum 1-hour average was 88μg/m 3 ,the maximum 24-hour average was 38μg/m 3 and the overall annual average was 5μg/m 3 , allof which were within the NWT standards (400, 200, 60 μg/m 3 , respectively).Figure 16: 2011 Inuvik Nitrogen Dioxide(μg/m 3 )1009080706050403020100J F M A M J J A S O N DMonthly Average 1-hour Maximum 24-hour MaximumConcentrationFigure 16 shows the maximum hourly, maximum daily and monthly averages of NO 2in Inuvikin 2011. Average concentrations are observed to be higher in the colder months, similar toprevious years, likely as a result of idling and other combustion sources during inversions(stagnant air masses).Hydrogen Sulphide (H 2S)The data collected in 2011 continues to indicate very low H 2S concentrations in Inuvik –essentially non-detectable. Most of the readings are less than 1μg/m 3 , which is below thedetectable limits of the instrumentation and within the ‘noise’ range.The maximum recorded 1-hour average was 5μg/m 3 , while the maximum 24-hour averagewas 2μg/m 3 . There were no exceedances of the adopted Alberta guidelines (1-hour average14μg/m 3 and a 24-hour average of 4μg/m 3 ). These results are consistent with the readingscollected in previous years.22 NWT Air Quality Report 2011
fort liardAIR QUALITYThe focus of the monitoring station in Fort Liardis to gather baseline community air qualityinformation and to track trends and cumulativeeffects of pollutant sources over time.The station is located near the Fort Liard Airportand measures PM 2.5, PM 10, SO 2, O 3, NO 2andH 2S. Monitoring has been conducted for selectparameters since 2000; however, this station wasestablished in 2004. Note that the O 3analyzer wasinstalled in 2007.Fine Particulate (PM 2.5)The 2011 annual PM 2.5average concentration was4.6μg/m 3 , while the maximum daily average was 25.8μg/m 3 . There were no exceedances ofthe NWT 24-hour standard for PM 2.5(30μg/m 3 ).Figure 17: 2011 Fort Liard BAM PM 2.59.08.07.0(μg/m 3 )30.025.0Monthly Average6.05.04.03.02.01.020.015.010.05.0Maximum Daily Average0.0J F M A M J J A S O N D0.0Monthly AverageMaximum Daily AverageFigure 17 shows the monthly averages and maximum daily averages for PM 2.5measuredfrom the BAM at the Fort Liard station in 2011. The slightly elevated readings in the summermonths are typical and reflect the dusty roads and forest fire events in the region.NWT Air Quality Report 201123
Page 6: OPERATIONS (NETWORK)The NWT Air Qua
Page 10 and 11: Developmentsin 2011Many upgrades we
Page 12: NWT AirQuality StandardsThe Governm
Page 16: The graph in Figure 5 presents the
Page 20 and 21: on winter-time air quality can be i
Page 22: Coarse Particulate (PM 10)The maxim
Page 28 and 29: Norman WellsAir QualityThe focus of
Page 30 and 31: Ground Level Ozone (O 3)The maximum
Page 32 and 33: Snare RapidsSince 1989, ENR has ope
Page 34 and 35: History of Air Quality Monitoring i
Page 36 and 37: The national Canada-wide Standards
Page 38 and 39: CO affects humans and animals by in

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