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Annual AQI Trend

Air Pollutant Concentrations Trend - Kwai Chung

YEAR NO2 PM10 PM2.5
2016 59 33 22
2015 64 37 25
2014 67 41 28
2013 69 46 32
2012 64 42 29
2011 67 48 30
2010 65 45 NA
2009 64 47 NA
2008 66 52 NA
2007 61 60 NA
2006 58 58 NA
2005 63 58 NA
2004 70 62 NA
2003 70 56 NA
2002 67 48 NA
2001 69 53 NA
2000 69 51 NA
1999 72 56 NA
* Pollutant concentrations in micrograms per cubic metre (μg/m3)

AAQI Long Term Trend - Kwai Chung

YEAR NO2 PM10 PM2.5
2016 1.5 1.7 2.2
2015 1.6 1.9 2.5
2014 1.7 2.1 2.8
2013 1.7 2.3 3.2
2012 1.6 2.1 2.9
2011 1.7 2.4 3.0
2010 1.6 2.3 NA
2009 1.6 2.4 NA
2008 1.7 2.6 NA
2007 1.5 3.0 NA
2006 1.5 2.9 NA
2005 1.6 2.9 NA
2004 1.8 3.1 NA
2003 1.8 2.8 NA
2002 1.7 2.4 NA
2001 1.7 2.7 NA
2000 1.7 2.6 NA
1999 1.8 2.8 NA
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Last revision date:09:06 22-11-2017