Is time to run? ⚠️☢️☣️

De Lier (South Holland) (NL)

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

Cloudy
7°C
Cloudy
Humidity
89.6%
Wind
5 m/s
Pressure
1004.5 hPa
Direction
165°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
4° / 7°
Precip.
3.3mm
Max wind
6.9 m/s

Hourly Forecast

01.02
Now
Weather
5
01.02
13:00
Weather
5
01.02
14:00
Weather
01.02
15:00
Weather
01.02
16:00
Weather
01.02
17:00
Weather
01.02
18:00
Weather
01.02
19:00
Weather
01.02
20:00
Weather
01.02
21:00
Weather
01.02
22:00
Weather
5
01.02
23:00
Weather
5
02.02
00:00
Weather
0.2
6
02.02
01:00
Weather
0.4
6
02.02
02:00
Weather
0.7
6
02.02
03:00
Weather
0.8
6
02.02
04:00
Weather
0.8
7
02.02
05:00
Weather
0.2
6
02.02
06:00
Weather
0.2
7
02.02
07:00
Weather
7
02.02
08:00
Weather
6
02.02
09:00
Weather
6
02.02
10:00
Weather
02.02
11:00
Weather
6

Temperature

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

Precipitation

0.8mm
0mm
00:00
0.2mm
01:00
0.4mm
02:00
0.7mm
03:00
0.8mm
04:00
0.8mm
05:00
0.2mm
06:00
0.2mm
12:00 23:00 11:00

Wind

6.9m/s
0m/s
12:00
5.2 m/s
13:00
5.1 m/s
14:00
4.8 m/s
15:00
4.2 m/s
16:00
4.3 m/s
17:00
4.4 m/s
18:00
4.4 m/s
19:00
4.7 m/s
20:00
4.6 m/s
21:00
4.9 m/s
22:00
5.1 m/s
23:00
5.3 m/s
00:00
5.7 m/s
01:00
6 m/s
02:00
6.1 m/s
03:00
6.2 m/s
04:00
6.5 m/s
05:00
6.4 m/s
06:00
6.9 m/s
07:00
6.5 m/s
08:00
6.2 m/s
09:00
5.5 m/s
10:00
5 m/s
11:00
5.5 m/s
12:00 23:00 11:00

Radiation

0.097 uSv
5 km
12.1%

Measurement time: 2026-02-01 10:00

source: remap_europe

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
61.8 km
156
52%

Measurement time: 2026-02-01 12:00

Calculated from PM2.5/PM10

PM2.5
61.8 km
66 µg/m3
78.6%

Measurement time: 2026-02-01 12:00

source: Aqicn

O3
64 km
39.86 µg/m3
24.9%

Measurement time: 2026-02-01 10:18

source: OpenWeatherMap

PM10
11.7 km
21 µg/m3
15%

Measurement time: 2026-02-01 12:00

source: Aqicn

NO2
11.7 km
10 µg/m3
5%

Measurement time: 2026-02-01 12:00

source: Aqicn

CO
64 km
0.20588 mg/m3
1.5%

Measurement time: 2026-02-01 10:18

source: OpenWeatherMap

SO2
64 km
0.89 µg/m3
0.3%

Measurement time: 2026-02-01 10:18

source: OpenWeatherMap

About Air Quality in De Lier

Air quality in De Lier 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 De Lier

  • 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 De Lier?

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 De Lier

If you're planning outdoor activities in De Lier, 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.