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San Marcellino (Campania) (IT)

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

Heavy rain
14°C
Heavy rain
Humidity
89.5%
Wind
8 m/s
Pressure
993.6 hPa
Direction
179°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
9° / 14°
Precip.
14mm
Max wind
7.9 m/s

Hourly Forecast

04.02
Now
Weather
14°
4
8
04.02
14:00
Weather
13°
2.3
04.02
15:00
Weather
12°
2.5
04.02
16:00
Weather
12°
0.4
04.02
17:00
Weather
11°
0.1
04.02
18:00
Weather
11°
1.3
04.02
19:00
Weather
11°
0.4
6
04.02
20:00
Weather
11°
0.2
7
04.02
21:00
Weather
11°
0.3
6
04.02
22:00
Weather
10°
0.2
5
04.02
23:00
Weather
10°
0.3
05.02
00:00
Weather
05.02
01:00
Weather
0.9
05.02
02:00
Weather
0.4
05.02
03:00
Weather
0.3
05.02
04:00
Weather
0.2
05.02
05:00
Weather
05.02
06:00
Weather
05.02
07:00
Weather
05.02
08:00
Weather
11°
05.02
09:00
Weather
12°
0.1
05.02
10:00
Weather
13°
0.1
05.02
11:00
Weather
14°
05.02
12:00
Weather
14°

Temperature

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

Precipitation

4mm
0mm
13:00
4mm
14:00
2.3mm
15:00
2.5mm
16:00
0.4mm
17:00
0.1mm
18:00
1.3mm
19:00
0.4mm
20:00
0.2mm
21:00
0.3mm
22:00
0.2mm
23:00
0.3mm
01:00
0.9mm
02:00
0.4mm
03:00
0.3mm
04:00
0.2mm
09:00
0.1mm
10:00
0.1mm
13:00 00:00 12:00

Wind

7.9m/s
0m/s
13:00
7.9 m/s
14:00
4.2 m/s
15:00
2.5 m/s
16:00
4.9 m/s
17:00
4 m/s
18:00
4.8 m/s
19:00
5.9 m/s
20:00
6.6 m/s
21:00
6 m/s
22:00
5.1 m/s
23:00
4 m/s
00:00
3.3 m/s
01:00
2.5 m/s
02:00
2.1 m/s
03:00
1.7 m/s
04:00
1.7 m/s
05:00
1.5 m/s
06:00
1.2 m/s
07:00
1.5 m/s
08:00
1.4 m/s
09:00
2.4 m/s
10:00
3.2 m/s
11:00
3.8 m/s
12:00
3.9 m/s
13:00 00:00 12:00

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
48.9 km
17
5.7%

Measurement time: 2026-02-04 15:03

Calculated from PM2.5/PM10

O3
48.9 km
87 µg/m3
54.4%

Measurement time: 2026-02-04 15:03

source: OpenWeatherMap

PM10
48.9 km
7.22 µg/m3
5.2%

Measurement time: 2026-02-04 15:03

source: OpenWeatherMap

PM2.5
48.9 km
4.21 µg/m3
5%

Measurement time: 2026-02-04 15:03

source: OpenWeatherMap

CO
48.9 km
0.14467 mg/m3
1%

Measurement time: 2026-02-04 15:03

source: OpenWeatherMap

NO2
48.9 km
0.57 µg/m3
0.3%

Measurement time: 2026-02-04 15:03

source: OpenWeatherMap

SO2
48.9 km
0.53 µg/m3
0.2%

Measurement time: 2026-02-04 15:03

source: OpenWeatherMap

About Air Quality in San Marcellino

Air quality in San Marcellino 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 San Marcellino

  • 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 San Marcellino?

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 San Marcellino

If you're planning outdoor activities in San Marcellino, 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.