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Annual AQI Trend

Air Pollutant Concentrations Trend - Central/Western

YEAR NO2 PM10 PM2.5
2016 43 32 22
2015 43 39 26
2014 46 44 28
2013 58 49 33
2012 52 46 29
2011 54 50 41
2010 54 47 NA
2009 51 47 NA
2008 52 51 NA
2007 53 53 NA
2006 54 53 NA
2005 58 54 NA
2004 58 59 NA
2003 52 53 NA
2002 46 41 NA
2001 54 54 NA
2000 53 50 NA
1999 56 53 NA
* Pollutant concentrations in micrograms per cubic metre (μg/m3)

AAQI Long Term Trend - Central/Western

YEAR NO2 PM10 PM2.5
2016 1.1 1.6 2.2
2015 1.1 2.0 2.6
2014 1.2 2.2 2.8
2013 1.5 2.5 3.3
2012 1.3 2.3 2.9
2011 1.4 2.5 4.1
2010 1.4 2.4 NA
2009 1.3 2.4 NA
2008 1.3 2.6 NA
2007 1.3 2.7 NA
2006 1.4 2.7 NA
2005 1.5 2.7 NA
2004 1.5 3.0 NA
2003 1.3 2.7 NA
2002 1.2 2.1 NA
2001 1.4 2.7 NA
2000 1.3 2.5 NA
1999 1.4 2.7 NA
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Last revision date:01:06 23-11-2017