Boston Air Quality

Monitoring Station · Boston, United States
52
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
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Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
52 5pm
33
33
33 8pm
33
33
33 11pm
33
33
26 2am
26
24
24 5am
23
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— 8am
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— 11am
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— 2pm
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CAMS model adj -1
34
34
34
34
34
34
34
34
34
27
27
25
25
24

Air Quality Forecast (24h)

PM2.512.6 µg/m³ ✓ WHO
Moderate
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Nearby Monitoring Stations

50
Boston
0.0 km PM2.5: 12.0 µg/m³
53
Nubian Square - DEP Station
3.7 km PM2.5: 13.2 µg/m³
9
Boston Roxbury
3.7 km PM2.5: 2.2 µg/m³
65
Magazine Beach Park
4.6 km PM2.5: 18.9 µg/m³
21
Milton Blue Hill Observatory
16.9 km PM2.5: 5.0 µg/m³

Nearby Cities

48 Boston 52 Charlestown 54 Back Bay 51 East Boston 50 South Boston 56 Fenway/Kenmore 52 Roxbury Crossing 58 Cambridge 52 Chelsea

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-07-21T20:02 UTC.