Air Quality History for Dorchester, United States
Historical PM2.5 and AQI trend from monitoring stations near Dorchester, United States.
5
Current AQI
Good Station
Good Station
Air Quality Index Station
443hPM2.5 Station
443h · 1 stationTemperature GFS model
80ptPrecipitation GFS model
mm/dayDaily Summary Station
| Date | AQI | Range | PM2.5 avg | PM10 avg | Hours | Stations |
|---|---|---|---|---|---|---|
| 2026-10-20 | 5 | 3–8 | 1.2 µg/m³ | 2.0 | 22h | 1 |
| 2026-10-19 | 6 | 1–14 | 1.4 µg/m³ | 2.0 | 24h | 1 |
| 2026-10-18 | 3 | 1–7 | 0.7 µg/m³ | 1.1 | 24h | 1 |
| 2026-10-17 | 6 | 1–15 | 1.1 µg/m³ | 1.8 | 10h | 1 |
| 2026-10-16 | 6 | 1–15 | 1.4 µg/m³ | 2.3 | 23h | 1 |
| 2026-10-15 | 2 | 1–9 | 0.3 µg/m³ | 0.6 | 18h | 1 |
| 2026-10-14 | 12 | 3–22 | 2.9 µg/m³ | 4.8 | 24h | 1 |
| 2026-10-13 | 17 | 2–27 | 4.0 µg/m³ | 6.5 | 24h | 1 |
| 2026-10-12 | 3 | 1–5 | 0.5 µg/m³ | 0.9 | 20h | 1 |
| 2026-10-11 | 11 | 2–31 | 2.7 µg/m³ | 3.6 | 24h | 1 |
| 2026-10-10 | 4 | 1–23 | 0.8 µg/m³ | 1.3 | 22h | 1 |
| 2026-10-09 | 2 | 1–6 | 0.5 µg/m³ | 0.9 | 22h | 1 |
| 2026-10-08 | 5 | 2–10 | 1.2 µg/m³ | 2.1 | 24h | 1 |
| 2026-10-07 | 3 | 1–5 | 0.6 µg/m³ | 1.0 | 24h | 1 |
| 2026-10-06 | 1 | 1–3 | 0.2 µg/m³ | 0.4 | 18h | 1 |
| 2026-10-05 | 7 | 1–12 | 1.6 µg/m³ | 2.7 | 23h | 1 |
| 2026-10-04 | 8 | 2–12 | 1.9 µg/m³ | 3.1 | 24h | 1 |
| 2026-10-03 | 3 | 1–5 | 0.8 µg/m³ | 1.3 | 24h | 1 |
| 2026-10-02 | 13 | 6–16 | 3.1 µg/m³ | 4.9 | 24h | 1 |
| 2026-10-01 | 7 | 3–13 | 1.6 µg/m³ | 2.7 | 24h | 1 |
| 2026-09-30 | 5 | 5–5 | 1.3 µg/m³ | 2.2 | 1h | 1 |