| År | Station | Nationell stationskod | Klassificering | Inlet-id | Medel NO2 µg/m³ (NUT=26, ÖUT=32, MKN=40, miljömål=20) | Antal dygn | Antal dygn NO2 > 60 µg/m³ (MKN=7) | Antal dygn NO2 > 48 µg/m³ (ÖUT=7) | Antal dygn NO2 > 36 µg/m³ (NUT=7) | 98%il dygn NO2 µg/m³ (MKN=60) | Max dygn NO2 | Antal timmar | Antal timmar NO2 > 54 µg/m³ (NUT=175) | Antal timmar NO2 > 72 µg/m³ (ÖUT=175) | Antal timmar NO2 > 90 µg/m³ (MKN=175) | Antal timmar NO2 > 100 µg/m³ (NUT=18) | Antal timmar NO2 > 140 µg/m³ (ÖUT=18) | Antal timmar NO2 > 200 µg/m³ (MKN=18) | Antal timmar NO2 > 60 µg/m³ (Miljömål=175) | 98%il timme NO2 µg/m³ | Max timme NO2 µg/m³ | Tidsupplösning |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | Västerås Melkertorget | 155530 | Urban Traffic | 2052 | 9.80 | 43 | 0.00 | 0.00 | 0.00 | 23.31 | 29.64 | 1022 | 7.00 | 1.00 | 0.00 | 0.00 | 0.00 | 0.00 | 5.00 | 32.89 | 77.08 | Hour |
| 2022 | Västerås Stora Gatan 78 | 344172 | Urban Traffic | 5141 | 12.98 | 309 | 0.00 | 0.00 | 4.00 | 33.79 | 39.56 | 7404 | 85.00 | 28.00 | 6.00 | 3.00 | 0.00 | 0.00 | 58.00 | 46.21 | 107.14 | Hour |
| 2021 | Västerås Melkertorget | 155530 | Urban Traffic | 2052 | 15.31 | 352 | 0.00 | 0.00 | 4.00 | 30.72 | 41.19 | 8441 | 71.00 | 14.00 | 3.00 | 0.00 | 0.00 | 0.00 | 36.00 | 42.71 | 98.71 | Hour |
| 2020 | Västerås Melkertorget | 155530 | Urban Traffic | 2052 | 8.44 | 356 | 0.00 | 0.00 | 0.00 | 19.83 | 35.23 | 8555 | 26.00 | 11.00 | 3.00 | 2.00 | 0.00 | 0.00 | 21.00 | 29.76 | 123.57 | Hour |
| 2019 | Västerås Melkertorget | 155530 | Urban Traffic | 2052 | 11.17 | 354 | 0.00 | 0.00 | 2.00 | 29.20 | 39.80 | 8486 | 54.00 | 19.00 | 0.00 | 0.00 | 0.00 | 0.00 | 40.00 | 40.38 | 89.10 | Hour |
| 2018 | Västerås Melkertorget | 155530 | Urban Traffic | 2052 | 14.01 | 358 | 0.00 | 0.00 | 4.00 | 33.99 | 44.39 | 8596 | 119.00 | 24.00 | 5.00 | 1.00 | 0.00 | 0.00 | 73.00 | 48.78 | 105.07 | Hour |
| 2017 | Västerås Melkertorget | 155530 | Urban Traffic | 2052 | 12.94 | 295 | 0.00 | 0.00 | 1.00 | 27.28 | 42.99 | 7073 | 53.00 | 7.00 | 0.00 | 0.00 | 0.00 | 0.00 | 30.00 | 43.17 | 83.09 | Hour |
| 2011 | Västerås Stora Gatan 1E | 28697 | Urban Traffic | 922 | 15.07 | 325 | Month | |||||||||||||||
| 2008 | Västerås Stadshuset | 8777 | Urban Background | 258 | 11.53 | 359 | 0.00 | 0.00 | 1.00 | 25.86 | 36.37 | 8616 | 36.00 | 6.00 | 2.00 | 0.00 | 0.00 | 0.00 | 17.00 | 38.61 | 98.59 | Hour |
| 2007 | Västerås Stadshuset | 8777 | Urban Background | 258 | 12.89 | 318 | 1.00 | 3.00 | 6.00 | 35.36 | 92.56 | 7631 | 133.00 | 66.00 | 42.00 | 27.00 | 2.00 | 2.00 | 94.00 | 51.50 | 263.00 | Hour |
| 2006 | Västerås Stadshuset | 8777 | Urban Background | 258 | 10.66 | 292 | 0.00 | 0.00 | 2.00 | 30.36 | 39.26 | 6996 | 62.00 | 13.00 | 0.00 | 0.00 | 0.00 | 0.00 | 38.00 | 43.50 | 85.10 | Hour |
| 2005 | Västerås Stadshuset | 8777 | Urban Background | 258 | 11.88 | 302 | 1.00 | 1.00 | 1.00 | 25.80 | 89.46 | 7242 | 78.00 | 48.00 | 32.00 | 20.00 | 0.00 | 0.00 | 63.00 | 43.60 | 128.00 | Hour |
| 2004 | Västerås Stadshuset | 8777 | Urban Background | 258 | 11.96 | 221 | 0.00 | 0.00 | 1.00 | 24.48 | 36.47 | 5311 | 21.00 | 2.00 | 0.00 | 0.00 | 0.00 | 0.00 | 9.00 | 38.60 | 87.10 | Hour |
| 2003 | Västerås Stadshuset | 8777 | Urban Background | 258 | 9.60 | 219 | 0.00 | 2.00 | 3.00 | 35.44 | 52.38 | 5264 | 60.00 | 19.00 | 5.00 | 0.00 | 0.00 | 0.00 | 48.00 | 45.70 | 93.10 | Hour |
| 2002 | Katrineholm | 7189 | Urban Background | 716 | 9.35 | 90 | 0.00 | 0.00 | 0.00 | 25.90 | 27.50 | Day | ||||||||||
| 2002 | Västerås Stadshuset | 8777 | Urban Background | 258 | 11.78 | 292 | 0.00 | 0.00 | 1.00 | 28.94 | 37.56 | 6996 | 42.00 | 6.00 | 0.00 | 0.00 | 0.00 | 0.00 | 26.00 | 44.50 | 78.40 | Hour |
| 2001 | Katrineholm | 7189 | Urban Background | 716 | 9.98 | 164 | 0.00 | 0.00 | 0.00 | 25.60 | 27.40 | Day | ||||||||||
| 2001 | Västerås Stadshuset | 8777 | Urban Background | 258 | 13.63 | 316 | 0.00 | 0.00 | 1.00 | 30.60 | 47.03 | 7579 | 57.00 | 13.00 | 1.00 | 1.00 | 1.00 | 0.00 | 32.00 | 44.60 | 191.00 | Hour |
| 2000 | Katrineholm | 7189 | Urban Background | 716 | 10.88 | 91 | 0.00 | 0.00 | 0.00 | 18.00 | 19.10 | Day | ||||||||||
| 2000 | Västerås Stadshuset | 8777 | Urban Background | 258 | 13.14 | 361 | 0.00 | 0.00 | 2.00 | 33.28 | 38.83 | 8661 | 88.00 | 11.00 | 0.00 | 0.00 | 0.00 | 0.00 | 43.00 | 47.70 | 83.80 | Hour |