Annual AQI Trend
Air Pollutant Concentrations Trend - Sha Tin
| YEAR | NO2 | PM10 | PM2.5 |
|---|---|---|---|
| 2021 | 32 | 25 | 14 |
| 2020 | 28 | 25 | 15 |
| 2019 | 32 | 28 | 17 |
| 2018 | 35 | 32 | 19 |
| 2017 | 34 | 31 | 21 |
| 2016 | 38 | 29 | 20 |
| 2015 | 41 | 34 | 24 |
| 2014 | 44 | 39 | 25 |
| 2013 | 47 | 42 | 29 |
| 2012 | 43 | 39 | 26 |
| 2011 | 45 | 47 | 40 |
| 2010 | 42 | 45 | NA |
| 2009 | 40 | 45 | NA |
| 2008 | 44 | 50 | NA |
| 2007 | 45 | 52 | NA |
| 2006 | 43 | 52 | NA |
| 2005 | 42 | 53 | NA |
| 2004 | 50 | 59 | NA |
| 2003 | 47 | 53 | NA |
| 2002 | 45 | 45 | NA |
| 2001 | 51 | 49 | NA |
| 2000 | 46 | 46 | NA |
| 1999 | 50 | 51 | NA |
AAQI Long Term Trend - Sha Tin
| YEAR | NO2 | PM10 | PM2.5 |
|---|---|---|---|
| 2021 | 0.8 | 1.3 | 1.4 |
| 2020 | 0.7 | 1.3 | 1.5 |
| 2019 | 0.8 | 1.4 | 1.7 |
| 2018 | 0.9 | 1.6 | 1.9 |
| 2017 | 0.9 | 1.6 | 2.1 |
| 2016 | 1.0 | 1.5 | 2.0 |
| 2015 | 1.0 | 1.7 | 2.4 |
| 2014 | 1.1 | 2.0 | 2.5 |
| 2013 | 1.2 | 2.1 | 2.9 |
| 2012 | 1.1 | 2.0 | 2.6 |
| 2011 | 1.1 | 2.4 | 4.0 |
| 2010 | 1.1 | 2.3 | NA |
| 2009 | 1.0 | 2.3 | NA |
| 2008 | 1.1 | 2.5 | NA |
| 2007 | 1.1 | 2.6 | NA |
| 2006 | 1.1 | 2.6 | NA |
| 2005 | 1.1 | 2.7 | NA |
| 2004 | 1.3 | 3.0 | NA |
| 2003 | 1.2 | 2.7 | NA |
| 2002 | 1.1 | 2.3 | NA |
| 2001 | 1.3 | 2.5 | NA |
| 2000 | 1.2 | 2.3 | NA |
| 1999 | 1.3 | 2.6 | NA |