As air quality now

Belgium · The summary is refreshed every 15 minutes.

Now

No current value: fewer than four sensors at different places are reporting now.

Open map

Open methodology and data in JSON: Methodology and data sources · JSON

There are not enough fresh measurements for As right now. From 10:00 to 19:00 local time the city mean PM2.5 fell from 15.5 to 9.5 µg/m³.

The weather data do not point to a clear reason for this level.

Weather now: cloudy, 5°C, wind 2 m/s, humidity 97%. No major change in the wind is expected in the coming hours.

Written automatically at 22:14 local time (21:14 UTC) from sensor measurements and the weather forecast. Values are approximate; hypotheses are marked.

2 m/s

Wind, NNE

1.9 mm

Precipitation today

Pollution accumulation index now

23/100Low · An estimate of weather conditions · not a PM2.5 forecast

Now2326
23.0007.0014.0022.00

Pollution accumulation forecast

Today — November 11

6°/4°

Index by time of day

44/100Moderate

  1. 44/100Night
  2. 31/100Morning
  3. 10/100Day
  4. 23/100Evening

Thursday — November 12

8°/2°

Index by time of day

48/100Moderate

  1. 48/100Night
  2. 43/100Morning
  3. 10/100Day
  4. 27/100Evening

Friday — November 13

8°/0°

Index by time of day

56/100Moderate

  1. 56/100Night
  2. 42/100Morning
  3. 8/100Day
  4. 23/100Evening

Saturday — November 14

8°/0°

Index by time of day

56/100Moderate

  1. 56/100Night
  2. 43/100Morning
  3. 10/100Day
  4. 23/100Evening

Sunday — November 15

12°/2°

Index by time of day

43/100Moderate

  1. 43/100Night
  2. 18/100Morning
  3. 4/100Day
  4. 11/100Evening

Monday — November 16

12°/7°

Index by time of day

20/100Low

  1. 20/100Night
  2. 19/100Morning
  3. 6/100Day
  4. 19/100Evening

Forecast of conditions that trap pollution near the surface

Weather

5°

Cloudy. Feels like 3°C

  1. MorningRain5°C97%
  2. DayCloudy5°C98%
  3. EveningRain5°C97%

Wind

2m/sWind from the NNE

4m/sWind gusts

Wind force: 2

Gusts up to 4 m/s are expected.

10-day weather forecast for As

Belgium

  1. TodayNov 11Rain6°C4°C
  2. ThuNov 12Rain8°C2°C
  3. FriNov 13Cloudy8°C0°C
  4. SatNov 14Cloudy8°C0°C
  5. SunNov 15Rain12°C2°C
  6. MonNov 16Rain12°C7°C
  7. TueNov 17Rain9°C4°C
  8. WedNov 18Rain11°C8°C
  9. ThuNov 19Rain10°C8°C
  10. FriNov 20Rain8°C4°C

Belgium: sensors in total

282

  1. BrusselsBelgium

    93

  2. GhentBelgium

    49

  3. LeuvenBelgium

    47

Cities with the most sensors

All sensors on the map, by city as the map assigns them; the city’s values count only the sensors that pass the Data Hub’s quality check.

Belgium · City ranking · All pilot cities

Questions

What is the air quality in As right now?

Fresh data for As are insufficient (last update: 16:45 local time, 15:45 UTC). Open the map for the latest readings of individual sensors.

Where do these data come from?

From Atmy sensors and connected public networks (citizen, experimental and government monitors), aggregated by Atmy. Values are approximate; see the methodology.

How often is this page updated?

The summary is rebuilt every 15 minutes from the latest reading of each sensor, each no older than one hour.

Data

Where do these data come from?

The daily value is the Data Hub’s: the mean of the city’s sensors that passed the nightly quality check, each with at least 12 valid hours, and only with sensors at four places 500 m apart; days are UTC.

“Now” uses the same sensors and rule: the mean of their latest readings, each at most 60 minutes old, shown only with sensors at four places 500 m apart reporting.

Source: public Atmy monitoring data. Methodology and data sources · Data terms