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Annual AQI Trend

Air Pollutant Concentrations Trend - Kwun Tong

YEAR NO2 PM10 PM2.5
2016 54 37 23
2015 55 44 27
2014 54 51 31
2013 59 52 33
2012 59 43 28
2011 63 49 31
2010 59 47 NA
2009 58 48 NA
2008 59 47 NA
2007 63 53 NA
2006 61 55 NA
2005 58 56 NA
2004 66 61 NA
2003 68 54 NA
2002 NA NA NA
2001 75 56 NA
2000 69 52 NA
1999 78 52 NA
* Pollutant concentrations in micrograms per cubic metre (μg/m3)

AAQI Long Term Trend - Kwun Tong

YEAR NO2 PM10 PM2.5
2016 1.4 1.9 2.3
2015 1.4 2.2 2.7
2014 1.4 2.6 3.1
2013 1.5 2.6 3.3
2012 1.5 2.2 2.8
2011 1.6 2.5 3.1
2010 1.5 2.4 NA
2009 1.5 2.4 NA
2008 1.5 2.4 NA
2007 1.6 2.7 NA
2006 1.5 2.8 NA
2005 1.5 2.8 NA
2004 1.7 3.1 NA
2003 1.7 2.7 NA
2002 NA NA NA
2001 1.9 2.8 NA
2000 1.7 2.6 NA
1999 2.0 2.6 NA
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Last revision date:00:06 24-11-2017