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Larkfield-Wikiup (California) (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

Partly cloudy
11°C
Partly cloudy
Humidity
89.6%
Wind
3 m/s
Pressure
1024.4 hPa
Direction
107°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
5° / 20°
Precip.
0mm
Max wind
2.9 m/s

Hourly Forecast

31.01
Now
Weather
11°
31.01
04:00
Weather
10°
31.01
05:00
Weather
31.01
06:00
Weather
31.01
07:00
Weather
31.01
08:00
Weather
31.01
09:00
Weather
31.01
10:00
Weather
31.01
11:00
Weather
31.01
12:00
Weather
31.01
13:00
Weather
31.01
14:00
Weather
31.01
15:00
Weather
31.01
16:00
Weather
31.01
17:00
Weather
31.01
18:00
Weather
13°
31.01
19:00
Weather
16°
31.01
20:00
Weather
18°
31.01
21:00
Weather
20°
31.01
22:00
Weather
20°
31.01
23:00
Weather
20°
01.02
00:00
Weather
19°
01.02
01:00
Weather
16°
01.02
02:00
Weather
13°

Temperature

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

Precipitation

0mm
0mm
03:00 14:00 02:00

Wind

2.9m/s
0m/s
03:00
2.7 m/s
04:00
2.6 m/s
05:00
2.2 m/s
06:00
2 m/s
07:00
1.6 m/s
08:00
1.4 m/s
09:00
1.6 m/s
10:00
1.5 m/s
11:00
1.7 m/s
12:00
2.1 m/s
13:00
2.5 m/s
14:00
2.8 m/s
15:00
2.8 m/s
16:00
2.9 m/s
17:00
2.8 m/s
18:00
2.1 m/s
19:00
1.3 m/s
20:00
1.1 m/s
21:00
1.2 m/s
22:00
1.1 m/s
23:00
1.5 m/s
00:00
1.7 m/s
01:00
1.4 m/s
02:00
1.9 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
83.8 km
131
43.7%

Measurement time: 2026-01-31 02:32

Calculated from PM2.5/PM10

PM2.5
83.8 km
47.75 µg/m3
56.8%

Measurement time: 2026-01-31 02:32

source: OpenWeatherMap

PM10
83.8 km
58.42 µg/m3
41.7%

Measurement time: 2026-01-31 02:32

source: OpenWeatherMap

NO2
83.8 km
77.98 µg/m3
39%

Measurement time: 2026-01-31 02:32

source: OpenWeatherMap

O3
83.8 km
37.15 µg/m3
23.2%

Measurement time: 2026-01-31 02:32

source: OpenWeatherMap

CO
83.8 km
0.53824 mg/m3
3.8%

Measurement time: 2026-01-31 02:32

source: OpenWeatherMap

SO2
83.8 km
4.71 µg/m3
1.3%

Measurement time: 2026-01-31 02:32

source: OpenWeatherMap

Info


Region: California
Latitude: 38.51342
Longitude: -122.75094

Cities in the area:

About Air Quality in Larkfield-Wikiup

Air quality in Larkfield-Wikiup 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 Larkfield-Wikiup

  • 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 Larkfield-Wikiup?

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 Larkfield-Wikiup

If you're planning outdoor activities in Larkfield-Wikiup, 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.