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Harpswell Center (Maine) (US)

Air Quality Trend (last 7 days)

Good (0-50)
Moderate (51-100)
Unhealthy for Sensitive Groups (101-150)
Unhealthy (151-200)
Very Unhealthy (201-300)
Hazardous (300+)

Weather - 48h MET Norway

Fog
-12°C
Fog
Humidity
89.8%
Wind
4 m/s
Pressure
1017.3 hPa
Direction
322°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
-12° / -1°
Precip.
0mm
Max wind
7.5 m/s

Hourly Forecast

04.02
Now
Weather
-12°
04.02
11:00
Weather
-11°
04.02
12:00
Weather
-11°
04.02
13:00
Weather
-10°
04.02
14:00
Weather
-8°
04.02
15:00
Weather
-5°
04.02
16:00
Weather
-3°
5
04.02
17:00
Weather
-2°
6
04.02
18:00
Weather
-1°
7
04.02
19:00
Weather
-1°
7
04.02
20:00
Weather
-1°
7
04.02
21:00
Weather
-1°
8
04.02
22:00
Weather
-3°
7
04.02
23:00
Weather
-4°
6
05.02
00:00
Weather
-5°
6
05.02
01:00
Weather
-6°
6
05.02
02:00
Weather
-7°
5
05.02
03:00
Weather
-7°
05.02
04:00
Weather
-8°
05.02
05:00
Weather
-9°
05.02
06:00
Weather
-9°
05.02
07:00
Weather
-10°
05.02
08:00
Weather
-10°
05.02
09:00
Weather
-10°

Temperature

-1°C
-12°C
10:00
-12°C
11:00
-11°C
12:00
-11°C
13:00
-10°C
14:00
-8°C
15:00
-5°C
16:00
-3°C
17:00
-2°C
18:00
-1°C
19:00
-1°C
20:00
-1°C
21:00
-1°C
22:00
-3°C
23:00
-4°C
00:00
-5°C
01:00
-6°C
02:00
-7°C
03:00
-7°C
04:00
-8°C
05:00
-9°C
06:00
-9°C
07:00
-10°C
08:00
-10°C
09:00
-10°C
10:00 21:00 09:00

Precipitation

0mm
0mm
10:00 21:00 09:00

Wind

7.5m/s
0m/s
10:00
3.8 m/s
11:00
3.8 m/s
12:00
4 m/s
13:00
4.4 m/s
14:00
4.5 m/s
15:00
4.6 m/s
16:00
5.2 m/s
17:00
6.2 m/s
18:00
7 m/s
19:00
7.1 m/s
20:00
7.3 m/s
21:00
7.5 m/s
22:00
6.8 m/s
23:00
6.2 m/s
00:00
6.2 m/s
01:00
5.9 m/s
02:00
5.4 m/s
03:00
5 m/s
04:00
4.4 m/s
05:00
3.7 m/s
06:00
3.4 m/s
07:00
3.5 m/s
08:00
4 m/s
09:00
4.7 m/s
10:00 21:00 09:00

Radiation

No sensor within 100 km.

We display the worst measurements from all stations in the area. This approach provides a more cautious assessment of air quality, accounting for local pollution sources.

AQI
36.9 km
149
49.7%

Measurement time: 2026-02-04 10:00

Calculated from PM2.5/PM10

PM2.5
36.9 km
55 µg/m3
65.5%

Measurement time: 2026-02-04 10:00

source: Aqicn

O3
37.4 km
59.9 µg/m3
37.4%

Measurement time: 2026-02-04 10:45

source: OpenWeatherMap

PM10
36.9 km
19 µg/m3
13.6%

Measurement time: 2026-02-04 10:00

source: Aqicn

NO2
37.4 km
9.4 µg/m3
4.7%

Measurement time: 2026-02-04 10:45

source: OpenWeatherMap

CO
37.4 km
0.24773 mg/m3
1.8%

Measurement time: 2026-02-04 10:45

source: OpenWeatherMap

SO2
37.4 km
1.3 µg/m3
0.4%

Measurement time: 2026-02-04 10:45

source: OpenWeatherMap

Info


Region: Maine
Latitude: 43.80175
Longitude: -69.98421

About Air Quality in Harpswell Center

Air quality in Harpswell Center is monitored in real-time by sensors and measurement stations. On this page you'll find current data on major air pollutants including particulate matter PM2.5 and PM10, nitrogen dioxide (NO2), ozone (O3), and radiation levels.

Common Pollutants in Harpswell Center

  • PM2.5 - fine particulate matter up to 2.5 micrometers, particularly harmful to health
  • PM10 - particulate matter up to 10 micrometers from traffic and industry
  • NO2 - nitrogen dioxide mainly emitted by vehicles
  • O3 - tropospheric ozone formed in photochemical reactions

When is Air Quality Best in Harpswell Center?

Generally, the best air quality occurs:

  • Early morning (5:00-7:00 AM) before rush hour traffic
  • After rainfall which cleanses the atmosphere
  • During strong winds that disperse pollutants
  • In summer months when heating systems are less used

Tips for Runners in Harpswell Center

If you're planning outdoor activities in Harpswell Center, always check the current AQI value. When AQI exceeds 100, consider moving your workout indoors or shortening the distance. People with respiratory issues, children, and seniors should be especially cautious during elevated pollution levels. Choose routes away from busy streets and industrial areas.