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Air quality · United States

New Hampshire Air Quality (AQI) Now

19 Good
European Air Quality Index
PM2.5
0.3µg/m³WHO limit 15
PM10
0.3µg/m³WHO limit 45
NO₂
1.1µg/m³
O₃
57µg/m³
Desert dust
0µg/m³
UV index
0.0
US AQI
26

Updated: · Source: Copernicus CAMS · Open-Meteo

Air quality in New Hampshire is good right now: European Air Quality Index 19. Fine particulate matter (PM2.5) is 0.3 µg/m³, below the WHO guideline. Fine for all outdoor activities. Pollution is expected to peak around 08:00 over the next 48 hours (index 38, fair).

New Hampshire 48-hour air quality forecast

03:00: 2203:0004:00: 2105:00: 2006:00: 1907:00: 2008:00: 2109:00: 1909:0010:00: 2211:00: 2612:00: 2813:00: 2914:00: 3015:00: 3115:0016:00: 3017:00: 2918:00: 2719:00: 2420:00: 2121:00: 2021:0022:00: 2123:00: 2300:00: 2501:00: 2602:00: 2803:00: 3003:0004:00: 3205:00: 3306:00: 3507:00: 3608:00: 3809:00: 3409:0010:00: 2811:00: 2712:00: 3013:00: 3114:00: 3115:00: 3015:0016:00: 2817:00: 2618:00: 2319:00: 2420:00: 2621:00: 2821:0022:00: 3023:00: 31

Air quality near New Hampshire

Cleanest to most polluted.

Frequently asked questions

Is New Hampshire polluted today?
Air quality in New Hampshire is good right now: European Air Quality Index 19. Fine for all outdoor activities.
Is it safe to exercise outdoors in New Hampshire today?
Yes, air quality is good right now; fine for outdoor exercise.
How is the air quality index calculated?
The European Air Quality Index is set by the worst of PM2.5, PM10, nitrogen dioxide, ozone and sulphur dioxide: 0–20 good, 20–40 fair, 40–60 moderate, 60–80 poor, 80–100 very poor, above 100 extremely poor.

Values are Copernicus Atmosphere Monitoring Service (CAMS) model forecasts and may differ from local monitoring stations.

New Hampshire air quality: details

Pollutants and recent days

Nitrogen dioxide (NO₂) is 1.1 µg/m³ and ozone (O₃) 57 µg/m³; WHO guideline values are 25 (24 h) and 100 µg/m³ (8 h).