Statistical data set
Figure 10: Annual mean hours when PM2.5 pollution was ‘Moderate’ or higher for urban background sites, 2009 to 2023
Updated 30 April 2024
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| Site Type | Year | Number of sites | Daily Air Quality Index | Mean number of hours per site |
|---|---|---|---|---|
| Urban Background | 2009 | 32 | mod_4 | 120.78125 |
| Urban Background | 2010 | 31 | mod_4 | 102.1935484 |
| Urban Background | 2011 | 30 | mod_4 | 189.4 |
| Urban Background | 2012 | 31 | mod_4 | 136.1290323 |
| Urban Background | 2013 | 31 | mod_4 | 100.516129 |
| Urban Background | 2014 | 29 | mod_4 | 97.10344828 |
| Urban Background | 2015 | 35 | mod_4 | 67.57142857 |
| Urban Background | 2016 | 35 | mod_4 | 56.57142857 |
| Urban Background | 2017 | 36 | mod_4 | 57 |
| Urban Background | 2018 | 37 | mod_4 | 31.32432432 |
| Urban Background | 2019 | 41 | mod_4 | 86.75609756 |
| Urban Background | 2020 | 42 | mod_4 | 24.14285714 |
| Urban Background | 2021 | 39 | mod_4 | 17.25641026 |
| Urban Background | 2022 | 46 | mod_4 | 39.58695652 |
| Urban Background | 2023 | 56 | mod_4 | 12.23214286 |
| Urban Background | 2009 | 32 | mod_5 | 66.28125 |
| Urban Background | 2010 | 31 | mod_5 | 55.80645161 |
| Urban Background | 2011 | 30 | mod_5 | 114.4666667 |
| Urban Background | 2012 | 31 | mod_5 | 75.64516129 |
| Urban Background | 2013 | 31 | mod_5 | 44.38709677 |
| Urban Background | 2014 | 29 | mod_5 | 52.68965517 |
| Urban Background | 2015 | 35 | mod_5 | 46.37142857 |
| Urban Background | 2016 | 35 | mod_5 | 32.82857143 |
| Urban Background | 2017 | 36 | mod_5 | 41.52777778 |
| Urban Background | 2018 | 37 | mod_5 | 14.54054054 |
| Urban Background | 2019 | 41 | mod_5 | 52.80487805 |
| Urban Background | 2020 | 42 | mod_5 | 9.095238095 |
| Urban Background | 2021 | 39 | mod_5 | 9.58974359 |
| Urban Background | 2022 | 46 | mod_5 | 17.39130435 |
| Urban Background | 2023 | 56 | mod_5 | 3.839285714 |
| Urban Background | 2009 | 32 | mod_6 | 37.9375 |
| Urban Background | 2010 | 31 | mod_6 | 27.83870968 |
| Urban Background | 2011 | 30 | mod_6 | 67.86666667 |
| Urban Background | 2012 | 31 | mod_6 | 49.03225806 |
| Urban Background | 2013 | 31 | mod_6 | 32.67741935 |
| Urban Background | 2014 | 29 | mod_6 | 31.5862069 |
| Urban Background | 2015 | 35 | mod_6 | 31.68571429 |
| Urban Background | 2016 | 35 | mod_6 | 16.51428571 |
| Urban Background | 2017 | 36 | mod_6 | 26.83333333 |
| Urban Background | 2018 | 37 | mod_6 | 8.189189189 |
| Urban Background | 2019 | 41 | mod_6 | 24.26829268 |
| Urban Background | 2020 | 42 | mod_6 | 5.261904762 |
| Urban Background | 2021 | 39 | mod_6 | 4.461538462 |
| Urban Background | 2022 | 46 | mod_6 | 7 |
| Urban Background | 2023 | 56 | mod_6 | 1.464285714 |
| Urban Background | 2009 | 32 | high_7 | 18.09375 |
| Urban Background | 2010 | 31 | high_7 | 9.838709677 |
| Urban Background | 2011 | 30 | high_7 | 34.53333333 |
| Urban Background | 2012 | 31 | high_7 | 28.96774194 |
| Urban Background | 2013 | 31 | high_7 | 20.25806452 |
| Urban Background | 2014 | 29 | high_7 | 19 |
| Urban Background | 2015 | 35 | high_7 | 13.94285714 |
| Urban Background | 2016 | 35 | high_7 | 9.685714286 |
| Urban Background | 2017 | 36 | high_7 | 7.972222222 |
| Urban Background | 2018 | 37 | high_7 | 5.378378378 |
| Urban Background | 2019 | 41 | high_7 | 7.585365854 |
| Urban Background | 2020 | 42 | high_7 | 3.380952381 |
| Urban Background | 2021 | 39 | high_7 | 0.615384615 |
| Urban Background | 2022 | 46 | high_7 | 3.195652174 |
| Urban Background | 2023 | 56 | high_7 | 0.267857143 |
| Urban Background | 2009 | 32 | high_8 | 9.625 |
| Urban Background | 2010 | 31 | high_8 | 6.225806452 |
| Urban Background | 2011 | 30 | high_8 | 28.13333333 |
| Urban Background | 2012 | 31 | high_8 | 20 |
| Urban Background | 2013 | 31 | high_8 | 13.83870968 |
| Urban Background | 2014 | 29 | high_8 | 17.10344828 |
| Urban Background | 2015 | 35 | high_8 | 6.914285714 |
| Urban Background | 2016 | 35 | high_8 | 5.628571429 |
| Urban Background | 2017 | 36 | high_8 | 3.888888889 |
| Urban Background | 2018 | 37 | high_8 | 4.918918919 |
| Urban Background | 2019 | 41 | high_8 | 2.365853659 |
| Urban Background | 2020 | 42 | high_8 | 2.047619048 |
| Urban Background | 2021 | 39 | high_8 | 0.051282051 |
| Urban Background | 2022 | 46 | high_8 | 2.804347826 |
| Urban Background | 2023 | 56 | high_8 | 0.339285714 |
| Urban Background | 2009 | 32 | high_9 | 5.25 |
| Urban Background | 2010 | 31 | high_9 | 3.129032258 |
| Urban Background | 2011 | 30 | high_9 | 14.93333333 |
| Urban Background | 2012 | 31 | high_9 | 11.67741935 |
| Urban Background | 2013 | 31 | high_9 | 6.774193548 |
| Urban Background | 2014 | 29 | high_9 | 7.137931034 |
| Urban Background | 2015 | 35 | high_9 | 0.657142857 |
| Urban Background | 2016 | 35 | high_9 | 2.857142857 |
| Urban Background | 2017 | 36 | high_9 | 2.25 |
| Urban Background | 2018 | 37 | high_9 | 0.918918919 |
| Urban Background | 2019 | 41 | high_9 | 0.268292683 |
| Urban Background | 2020 | 42 | high_9 | 1.666666667 |
| Urban Background | 2021 | 39 | high_9 | 0.051282051 |
| Urban Background | 2022 | 46 | high_9 | 0.760869565 |
| Urban Background | 2023 | 56 | high_9 | 0.535714286 |
| Urban Background | 2009 | 32 | vhigh_10 | 1.84375 |
| Urban Background | 2010 | 31 | vhigh_10 | 8.35483871 |
| Urban Background | 2011 | 30 | vhigh_10 | 14.63333333 |
| Urban Background | 2012 | 31 | vhigh_10 | 6.806451613 |
| Urban Background | 2013 | 31 | vhigh_10 | 4.322580645 |
| Urban Background | 2014 | 29 | vhigh_10 | 12.51724138 |
| Urban Background | 2015 | 35 | vhigh_10 | 0.742857143 |
| Urban Background | 2016 | 35 | vhigh_10 | 0.742857143 |
| Urban Background | 2017 | 36 | vhigh_10 | 6.861111111 |
| Urban Background | 2018 | 37 | vhigh_10 | 0.783783784 |
| Urban Background | 2019 | 41 | vhigh_10 | 0.170731707 |
| Urban Background | 2020 | 42 | vhigh_10 | 1.238095238 |
| Urban Background | 2021 | 39 | vhigh_10 | 0 |
| Urban Background | 2022 | 46 | vhigh_10 | 0.152173913 |
| Urban Background | 2023 | 56 | vhigh_10 | 0.178571429 |