Statistical data set
Figure 9: Annual mean hours when PM2.5 pollution was ‘Moderate’ or higher for roadside sites, 2009 to 2023
Updated 30 April 2024
Download CSV 4.17 KB
| Site type | Year | Number of sites | Daily Air Quality Index | Mean number of hours per site |
|---|---|---|---|---|
| Urban Traffic | 2009 | 4 | mod_4 | 112.75 |
| Urban Traffic | 2010 | 11 | mod_4 | 148.2727273 |
| Urban Traffic | 2011 | 13 | mod_4 | 234.8461538 |
| Urban Traffic | 2012 | 15 | mod_4 | 170.2 |
| Urban Traffic | 2013 | 17 | mod_4 | 135.4705882 |
| Urban Traffic | 2014 | 14 | mod_4 | 117.7142857 |
| Urban Traffic | 2015 | 19 | mod_4 | 77.78947368 |
| Urban Traffic | 2016 | 17 | mod_4 | 67.88235294 |
| Urban Traffic | 2017 | 17 | mod_4 | 68.88235294 |
| Urban Traffic | 2018 | 19 | mod_4 | 49.63157895 |
| Urban Traffic | 2019 | 23 | mod_4 | 73.73913043 |
| Urban Traffic | 2020 | 22 | mod_4 | 34.13636364 |
| Urban Traffic | 2021 | 21 | mod_4 | 17.9047619 |
| Urban Traffic | 2022 | 22 | mod_4 | 34.90909091 |
| Urban Traffic | 2023 | 23 | mod_4 | 15.65217391 |
| Urban Traffic | 2009 | 4 | mod_5 | 65.5 |
| Urban Traffic | 2010 | 11 | mod_5 | 70.36363636 |
| Urban Traffic | 2011 | 13 | mod_5 | 150.4615385 |
| Urban Traffic | 2012 | 15 | mod_5 | 102.8666667 |
| Urban Traffic | 2013 | 17 | mod_5 | 81.64705882 |
| Urban Traffic | 2014 | 14 | mod_5 | 63.42857143 |
| Urban Traffic | 2015 | 19 | mod_5 | 47 |
| Urban Traffic | 2016 | 17 | mod_5 | 37.82352941 |
| Urban Traffic | 2017 | 17 | mod_5 | 48.05882353 |
| Urban Traffic | 2018 | 19 | mod_5 | 22.42105263 |
| Urban Traffic | 2019 | 23 | mod_5 | 51.2173913 |
| Urban Traffic | 2020 | 22 | mod_5 | 11.81818182 |
| Urban Traffic | 2021 | 21 | mod_5 | 12.66666667 |
| Urban Traffic | 2022 | 22 | mod_5 | 13.09090909 |
| Urban Traffic | 2023 | 23 | mod_5 | 1.304347826 |
| Urban Traffic | 2009 | 4 | mod_6 | 30.5 |
| Urban Traffic | 2010 | 11 | mod_6 | 50.63636364 |
| Urban Traffic | 2011 | 13 | mod_6 | 105.2307692 |
| Urban Traffic | 2012 | 15 | mod_6 | 51.8 |
| Urban Traffic | 2013 | 17 | mod_6 | 44.58823529 |
| Urban Traffic | 2014 | 14 | mod_6 | 41.57142857 |
| Urban Traffic | 2015 | 19 | mod_6 | 33.15789474 |
| Urban Traffic | 2016 | 17 | mod_6 | 21.82352941 |
| Urban Traffic | 2017 | 17 | mod_6 | 36.52941176 |
| Urban Traffic | 2018 | 19 | mod_6 | 12.47368421 |
| Urban Traffic | 2019 | 23 | mod_6 | 28.26086957 |
| Urban Traffic | 2020 | 22 | mod_6 | 6.090909091 |
| Urban Traffic | 2021 | 21 | mod_6 | 6.285714286 |
| Urban Traffic | 2022 | 22 | mod_6 | 8.090909091 |
| Urban Traffic | 2023 | 23 | mod_6 | 0 |
| Urban Traffic | 2009 | 4 | high_7 | 10.25 |
| Urban Traffic | 2010 | 11 | high_7 | 30 |
| Urban Traffic | 2011 | 13 | high_7 | 56.15384615 |
| Urban Traffic | 2012 | 15 | high_7 | 28.8 |
| Urban Traffic | 2013 | 17 | high_7 | 22.23529412 |
| Urban Traffic | 2014 | 14 | high_7 | 22.92857143 |
| Urban Traffic | 2015 | 19 | high_7 | 16.94736842 |
| Urban Traffic | 2016 | 17 | high_7 | 11.47058824 |
| Urban Traffic | 2017 | 17 | high_7 | 10.82352941 |
| Urban Traffic | 2018 | 19 | high_7 | 5.947368421 |
| Urban Traffic | 2019 | 23 | high_7 | 9.391304348 |
| Urban Traffic | 2020 | 22 | high_7 | 3.227272727 |
| Urban Traffic | 2021 | 21 | high_7 | 1.952380952 |
| Urban Traffic | 2022 | 22 | high_7 | 4.863636364 |
| Urban Traffic | 2023 | 23 | high_7 | 0 |
| Urban Traffic | 2009 | 4 | high_8 | 0.5 |
| Urban Traffic | 2010 | 11 | high_8 | 13.36363636 |
| Urban Traffic | 2011 | 13 | high_8 | 41.92307692 |
| Urban Traffic | 2012 | 15 | high_8 | 20.06666667 |
| Urban Traffic | 2013 | 17 | high_8 | 14.52941176 |
| Urban Traffic | 2014 | 14 | high_8 | 21.57142857 |
| Urban Traffic | 2015 | 19 | high_8 | 9.684210526 |
| Urban Traffic | 2016 | 17 | high_8 | 6.882352941 |
| Urban Traffic | 2017 | 17 | high_8 | 3.647058824 |
| Urban Traffic | 2018 | 19 | high_8 | 3.789473684 |
| Urban Traffic | 2019 | 23 | high_8 | 4.869565217 |
| Urban Traffic | 2020 | 22 | high_8 | 4.409090909 |
| Urban Traffic | 2021 | 21 | high_8 | 0.285714286 |
| Urban Traffic | 2022 | 22 | high_8 | 4.318181818 |
| Urban Traffic | 2023 | 23 | high_8 | 0 |
| Urban Traffic | 2009 | 4 | high_9 | 0 |
| Urban Traffic | 2010 | 11 | high_9 | 6.272727273 |
| Urban Traffic | 2011 | 13 | high_9 | 17.53846154 |
| Urban Traffic | 2012 | 15 | high_9 | 12.8 |
| Urban Traffic | 2013 | 17 | high_9 | 7.411764706 |
| Urban Traffic | 2014 | 14 | high_9 | 12 |
| Urban Traffic | 2015 | 19 | high_9 | 0.842105263 |
| Urban Traffic | 2016 | 17 | high_9 | 4.470588235 |
| Urban Traffic | 2017 | 17 | high_9 | 1.823529412 |
| Urban Traffic | 2018 | 19 | high_9 | 0.947368421 |
| Urban Traffic | 2019 | 23 | high_9 | 0.608695652 |
| Urban Traffic | 2020 | 22 | high_9 | 2.727272727 |
| Urban Traffic | 2021 | 21 | high_9 | 0 |
| Urban Traffic | 2022 | 22 | high_9 | 2 |
| Urban Traffic | 2023 | 23 | high_9 | 0 |
| Urban Traffic | 2009 | 4 | vhigh_10 | 0 |
| Urban Traffic | 2010 | 11 | vhigh_10 | 8.181818182 |
| Urban Traffic | 2011 | 13 | vhigh_10 | 20.15384615 |
| Urban Traffic | 2012 | 15 | vhigh_10 | 6.6 |
| Urban Traffic | 2013 | 17 | vhigh_10 | 4.411764706 |
| Urban Traffic | 2014 | 14 | vhigh_10 | 8.357142857 |
| Urban Traffic | 2015 | 19 | vhigh_10 | 0 |
| Urban Traffic | 2016 | 17 | vhigh_10 | 3.764705882 |
| Urban Traffic | 2017 | 17 | vhigh_10 | 7.647058824 |
| Urban Traffic | 2018 | 19 | vhigh_10 | 3.842105263 |
| Urban Traffic | 2019 | 23 | vhigh_10 | 0.826086957 |
| Urban Traffic | 2020 | 22 | vhigh_10 | 2.545454545 |
| Urban Traffic | 2021 | 21 | vhigh_10 | 0 |
| Urban Traffic | 2022 | 22 | vhigh_10 | 0.909090909 |
| Urban Traffic | 2023 | 23 | vhigh_10 | 0 |