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Plymouth (Massachusetts) (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

Fair
10°C
Fair
Humidity
78.6%
Wind
8 m/s
Pressure
1017.9 hPa
Direction
224°
Sunrise
04:00
Sunset
16:00
24h Forecast:
Temp.
9° / 16°
Precip.
4.4mm
Max wind
9.4 m/s

Hourly Forecast

31.03
Now
Weather
10°
8
31.03
04:00
Weather
10°
8
31.03
05:00
Weather
10°
8
31.03
06:00
Weather
10°
8
31.03
07:00
Weather
10°
7
31.03
08:00
Weather
7
31.03
09:00
Weather
7
31.03
10:00
Weather
0.5
7
31.03
11:00
Weather
1
7
31.03
12:00
Weather
1.2
7
31.03
13:00
Weather
10°
0.4
7
31.03
14:00
Weather
11°
0.9
8
31.03
15:00
Weather
11°
9
31.03
16:00
Weather
13°
9
31.03
17:00
Weather
16°
8
31.03
18:00
Weather
16°
8
31.03
19:00
Weather
16°
7
31.03
20:00
Weather
14°
0.3
8
31.03
21:00
Weather
15°
0.1
7
31.03
22:00
Weather
15°
6
31.03
23:00
Weather
13°
7
01.04
00:00
Weather
11°
8
01.04
01:00
Weather
11°
7
01.04
02:00
Weather
11°
8

Temperature

16°C
9°C
03:00
10°C
04:00
10°C
05:00
10°C
06:00
10°C
07:00
10°C
08:00
9°C
09:00
9°C
10:00
9°C
11:00
9°C
12:00
9°C
13:00
10°C
14:00
11°C
15:00
11°C
16:00
13°C
17:00
16°C
18:00
16°C
19:00
16°C
20:00
14°C
21:00
15°C
22:00
15°C
23:00
13°C
00:00
11°C
01:00
11°C
02:00
11°C
03:00 14:00 02:00

Precipitation

1.2mm
0mm
10:00
0.5mm
11:00
1mm
12:00
1.2mm
13:00
0.4mm
14:00
0.9mm
20:00
0.3mm
21:00
0.1mm
03:00 14:00 02:00

Wind

9.4m/s
0m/s
03:00
8.4 m/s
04:00
8.3 m/s
05:00
8.1 m/s
06:00
7.6 m/s
07:00
7.2 m/s
08:00
6.7 m/s
09:00
7 m/s
10:00
7.1 m/s
11:00
6.6 m/s
12:00
6.5 m/s
13:00
6.5 m/s
14:00
7.9 m/s
15:00
9.4 m/s
16:00
8.5 m/s
17:00
8.4 m/s
18:00
8.4 m/s
19:00
7 m/s
20:00
8 m/s
21:00
6.6 m/s
22:00
6.2 m/s
23:00
6.9 m/s
00:00
8 m/s
01:00
7.2 m/s
02:00
7.5 m/s
03:00 14:00 02:00

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
66.2 km
25
8.3%

Measurement time: 2026-03-31 03:53

Calculated from PM2.5/PM10

O3
66.2 km
108.51 µg/m3
67.8%

Measurement time: 2026-03-31 03:53

source: OpenWeatherMap

PM10
66.2 km
11.38 µg/m3
8.1%

Measurement time: 2026-03-31 03:53

source: OpenWeatherMap

PM2.5
66.2 km
6.05 µg/m3
7.2%

Measurement time: 2026-03-31 03:53

source: OpenWeatherMap

NO2
66.2 km
3.34 µg/m3
1.7%

Measurement time: 2026-03-31 03:53

source: OpenWeatherMap

CO
66.2 km
0.1597 mg/m3
1.1%

Measurement time: 2026-03-31 03:53

source: OpenWeatherMap

SO2
66.2 km
0.98 µg/m3
0.3%

Measurement time: 2026-03-31 03:53

source: OpenWeatherMap

Info


Latitude: 41.95844
Longitude: -70.66726

Cities in the area:


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About Air Quality in Plymouth

Air quality in Plymouth 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 Plymouth

  • 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 Plymouth?

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 Plymouth

If you're planning outdoor activities in Plymouth, 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.