| station | last seen | PM 2.5 |
|---|---|---|
| 2001 | 1 m | 3.4 |
| 2004 | 3 m | 11.5 |
| 2005 | 3 d | 0.0 |
| 2013 | 2 m | 4.3 |
| 2017 | 3 m | 34.2 |
| 2020 | 13 m | 9.1 |
| 2030 | 2 d | 1.4 |
| 2034 | 7 m | 4.5 |
| 2038 | 6 m | 5.0 |
| 2051 | 4 m | 0.0 |
| 2061 | 1 m | 1.7 |
| 2094 | 1 m | 3.1 |
| 2149 | 6 m | 4.6 |
| 2150 | 9 m | 0.0 |
| 2152 | 14 m | 4.0 |
| 2184 | 3 m | 13.3 |
| 2188 | 13 m | 3.3 |
| 2190 | 6 m | 1.4 |
| 3040 | 1 w | 0.0 |
| 3042 | 2 m | 30.3 |
| 3043 | 9 m | 4.7 |
| 3044 | 1 m | 4.3 |
| 3045 | 2 w | 7.4 |
| 3046 | 4 m | 3.2 |
| 3049 | 1 m | 24.5 |
| 3050 | 10 m | 3.5 |
| 3051 | 10 m | 15.2 |
| 3052 | 9 m | 3.0 |
| 3057 | 10 m | 6.1 |
| 3059 | 8 m | 3.9 |
| 3061 | 11 m | 4.7 |