Biddeford, Maine live air quality index now
Stay updated with real-time air quality in Biddeford, Maine featuring accurate data on AQI, PM2.5, PM10, O3, NO2, SO2, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.
Live AQI (Air Quality Index)
43
Good
Biddeford, Maine
Last updated: ... (Local time)
Major air pollutants in Biddeford, Maine
Good
Fine
Moderate
Poor
Very poor
Hazardous
Particulate Matter2.5 (PM2.5)
4.59 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
Particulate Matter10 (PM10)
15.91 μg/m³
0
55
155
255
425
605+
Ozone (O3)
45.85 ppb
0
55
71
86
201
201+
Sulfur Dioxide (SO2)
0.45 ppb
0
36
76
186
605
1005+
Nitrogen Dioxide (NO2)
4.36 ppb
0
54
101
361
1250
2050+
Carbon Monoxide (CO)
0.16 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Biddeford, Maine
Biddeford, Maine
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Air quality in nearby cities
Saco, Maine
AQI 34
Good
5.64μg/m³
PM2.5
14.09μg/m³
PM10
37.17ppb
O3
0.48ppb
SO2
5.10ppb
NO2
0.14ppm
CO
Kennebunk, Maine
AQI 43
Good
4.92μg/m³
PM2.5
16.08μg/m³
PM10
46.38ppb
O3
0.55ppb
SO2
6.21ppb
NO2
0.14ppm
CO
Scarborough, Maine
AQI 44
Good
7.66μg/m³
PM2.5
18.34μg/m³
PM10
41.18ppb
O3
0.34ppb
SO2
2.96ppb
NO2
0.14ppm
CO
Gorham, Maine
AQI 33
Good
5.70μg/m³
PM2.5
15.90μg/m³
PM10
34.91ppb
O3
0.46ppb
SO2
2.42ppb
NO2
0.14ppm
CO
Wells, Maine
AQI 44
Good
4.81μg/m³
PM2.5
16.24μg/m³
PM10
47.00ppb
O3
0.55ppb
SO2
6.30ppb
NO2
0.14ppm
CO
Westbrook, Maine
AQI 44
Good
7.71μg/m³
PM2.5
19.65μg/m³
PM10
34.46ppb
O3
0.40ppb
SO2
2.38ppb
NO2
0.14ppm
CO
How accurate is Maine, USA air quality data?
Air quality data and pollutant measurements for Maine, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
Frequently asked questions
How often is the air quality data for Biddeford, Maine updated?
The air quality for Biddeford, Maine is updated every hour.
When was the worst air quality at Biddeford, Maine in the last 24 hrs?
The worst air quality in Biddeford, Maine in the last 24 hours was observed at 09:00:00 on 2026-05-14.
When was the best air quality at Biddeford, Maine in the last 24 hrs?
In the last 24 hrs, the best air quality in Biddeford, Maine was observed at 12:00:00 on 2026-05-13.
What is the current air quality in Biddeford, Maine?
The current air quality in Biddeford, Maine is 43, categorized as Good based on real-time data.
What pollutant is the most common in Biddeford, Maine?
The most common pollutant in Biddeford, Maine is O3.
What should I do if the air quality in Biddeford, Maine is poor?
If the air quality in Biddeford, Maine is poor, consider staying indoors and wearing a mask to protect yourself.
What is the current concentration of PM2.5 in Biddeford, Maine?
The current PM2.5 concentration at Biddeford, Maine is 4.592 μg/m3.
What is the current concentration of PM10 in Biddeford, Maine?
The current PM10 concentration at Biddeford, Maine is 15.907 μg/m3.
What is the current concentration of carbon monoxide (CO) in Biddeford, Maine?
The current carbon monoxide (CO) concentration at Biddeford, Maine is 0.161 ppm.
What is the current concentration of sulfur dioxide (SO2) in Biddeford, Maine?
The current sulfur dioxide (SO2) concentration at Biddeford, Maine is 0.446 ppb.
What is the current concentration of ozone (O3) in Biddeford, Maine?
The current ozone (O3) concentration at Biddeford, Maine is 45.85 ppm.
What is the current concentration of nitrogen dioxide (NO2) in Biddeford, Maine?
The current nitrogen dioxide (NO2) concentration at Biddeford, Maine is 4.355 ppb.
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