Statistical data set
Figure 11: Monthly mean PM2.5 concentration at roadside and urban background sites, 2024
Updated 26 June 2025
| 锘縎ite type | Month | Mean concentration of PM2.5 (碌g/m3) | 95% confidence interval for 'All sites' (+/-) | Number of sites |
|---|---|---|---|---|
| Urban Background | January | 7.445725004 | 0.39729599 | 58 |
| Urban Background | February | 6.209602692 | 0.314558722 | 57 |
| Urban Background | March | 9.473570822 | 0.384503768 | 58 |
| Urban Background | April | 5.147524271 | 0.237364278 | 60 |
| Urban Background | May | 9.199356785 | 0.254187344 | 60 |
| Urban Background | June | 5.699937776 | 0.193377876 | 58 |
| Urban Background | July | 4.728179179 | 0.171377072 | 57 |
| Urban Background | August | 6.61064476 | 0.185160291 | 58 |
| Urban Background | September | 8.121470836 | 0.28951699 | 61 |
| Urban Background | October | 6.66925381 | 0.219234523 | 65 |
| Urban Background | November | 11.08284513 | 0.445195069 | 64 |
| Urban Background | December | 5.610477933 | 0.285197253 | 65 |
| Urban Traffic | January | 7.915442785 | 0.96510502 | 21 |
| Urban Traffic | February | 6.628802024 | 0.64604053 | 24 |
| Urban Traffic | March | 9.38232276 | 0.829543749 | 24 |
| Urban Traffic | April | 5.581102788 | 0.525578047 | 24 |
| Urban Traffic | May | 9.319452164 | 0.55491103 | 22 |
| Urban Traffic | June | 6.2799586 | 0.723094653 | 22 |
| Urban Traffic | July | 5.199514469 | 0.683532153 | 22 |
| Urban Traffic | August | 7.177932961 | 0.837383214 | 20 |
| Urban Traffic | September | 8.199463548 | 0.862012104 | 22 |
| Urban Traffic | October | 7.003917954 | 0.664454694 | 26 |
| Urban Traffic | November | 11.04714107 | 0.988260587 | 30 |
| Urban Traffic | December | 5.900116709 | 0.417076459 | 43 |