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Air quality · United States

Maine Air Quality (AQI) Now

16 Good
European Air Quality Index
PM2.5
1.8µg/m³WHO limit 15
PM10
1.8µg/m³WHO limit 45
NO₂
5.8µg/m³
O₃
49µg/m³
Desert dust
0µg/m³
UV index
0.0
US AQI
30

Updated: · Source: Copernicus CAMS · Open-Meteo

Air quality in Maine is good right now: European Air Quality Index 16. Fine particulate matter (PM2.5) is 1.8 µg/m³, below the WHO guideline. Fine for all outdoor activities. Pollution is expected to peak around 17:00 over the next 48 hours (index 27, fair).

Maine 48-hour air quality forecast

13:00: 2013:0014:00: 2215:00: 2416:00: 2617:00: 2718:00: 2719:00: 2619:0020:00: 2521:00: 2522:00: 2523:00: 24

Air quality near Maine

Cleanest to most polluted.

Frequently asked questions

Is Maine polluted today?
Air quality in Maine is good right now: European Air Quality Index 16. Fine for all outdoor activities.
Is it safe to exercise outdoors in Maine 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.

Maine air quality: details

Pollutants and recent days

Nitrogen dioxide (NO₂) is 5.8 µg/m³ and ozone (O₃) 49 µg/m³; WHO guideline values are 25 (24 h) and 100 µg/m³ (8 h).