Where is the air worst in Maine right now?

Bethel Smith Farm Road has the highest current reading at AQI 23 (Good).

How often are readings updated?

Monitors report every hour. We refresh this page with the latest hour from EPA AirNow.

Maine Air Quality

Current AQI at 10 monitors, highest 23 (Good) · Measured 10/30/2026, 9:00 PM PT

Monitors: 10
Highest AQI: 23; Good
Typical (median): 14; Good
Above 100: 0

Monitoring sites in Maine

Worst first. Times are local.

23Bethel Smith Farm RoadGood · Ozone · Fri 10/30/2026, 11:00 PM EDT
19Presque Isle Regional OfficeGood · Fine particles (PM2.5) · Fri 10/30/2026, 11:00 PM EDT
17Shapleigh Ball ParkGood · Ozone · Fri 10/30/2026, 11:00 PM EDT
15Cape ElizabethGood · Ozone · Fri 10/30/2026, 11:00 PM EDT
14Acadia NP - McFarlandGood · Ozone · Fri 10/30/2026, 11:00 PM EDT
11Madawaska PSBGood · Fine particles (PM2.5) · Fri 10/30/2026, 11:00 PM EDT
7Bangor MSSGood · Fine particles (PM2.5) · Fri 10/30/2026, 11:00 PM EDT
7RumfordGood · Fine particles (PM2.5) · Fri 10/30/2026, 11:00 PM EDT
6LewistonGood · Coarse particles (PM10) · Fri 10/30/2026, 11:00 PM EDT
3Presque Isle RiversideGood · Coarse particles (PM10) · Fri 10/30/2026, 11:00 PM EDT

By county

Highest current AQI among the county's monitors

Frequently asked questions

Where is the air worst in Maine right now?: Bethel Smith Farm Road has the highest current reading at AQI 23 (Good).
How often are readings updated?: Monitors report every hour. We refresh this page with the latest hour from EPA AirNow.

Source: EPA AirNow · Last updated 10/30/2026 · Data are preliminary and subject to change

What the AQI means

0-50Good. Air quality is satisfactory and poses little or no risk.
51-100Moderate. Acceptable. A few unusually sensitive people may have symptoms.
101-150Unhealthy for Sensitive Groups. People with heart or lung disease, older adults, children and teens should limit long or heavy outdoor exertion.
151-200Unhealthy. Everyone may begin to feel effects. Sensitive groups should avoid long or heavy outdoor exertion.
201-300Very Unhealthy. Health alert: the risk of health effects is increased for everyone.
301-500Hazardous. Health warning of emergency conditions. Everyone is more likely to be affected.

Data sources

AirNowU.S. Environmental Protection Agency · Official site

Data as of 10/30/2026

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About this data

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