Belgium · The summary is refreshed every 15 minutes.
November 11
The air is clean now
Measured 21:00–22:57
Namur
7°C
Fog
1002
hPaAtmospheric
pressure
99%
Humidity
Namur, November 10, 2026: daily mean PM2.5 10 µg/m³ (6 sensors), level “Moderate” — as in the Atmy Data Hub. Now (23:00 local time): 4.5 µg/m³. Open methodology and data in JSON: Methodology and data sources · JSON
Right now in Namur, PM2.5 averages 4.5 µg/m³ — “good” on the US EPA scale (approximate, from hourly readings). Mean of 6 sensors from Government stations, Sensor.Community, readings from 21:00–22:57 local time (20:00–21:57 UTC), summary prepared at 23:00 local time. Median: 4.4 µg/m³; range across sensors: 1.0–8.0 µg/m³.
In Namur the air is good 🟢 AQI 25. About the same as three hours ago. 🌫️ +7 °C · No precipitation · Wind 2 m/s
In Namur the air is good right now (approximate, US EPA scale). From 10:00 to 23:00 local time the city mean PM2.5 fell from 8.7 to 4.5 µg/m³. The highest hour was 12:00 with 10.2 µg/m³.
The weather data do not point to a clear reason for this level.
Weather now: fog, 7°C, wind 2 m/s, humidity 99%. No major change in the wind is expected in the coming hours.
Written automatically at 23:00 local time (22:00 UTC) from sensor measurements and the weather forecast. Values are approximate; hypotheses are marked.
2 m/s
Wind, NE
4.4 mm
Precipitation today
10 µg/m³ Moderate
Daily mean PM2.5 on November 10, 2026 (00:00–24:00 UTC = 01:00–01:00 UTC+1): 10 µg/m³ from 6 sensors that passed the quality check — the same value as in the Atmy Data Hub.
Monthly means of quality-checked sensors, as in the Data Hub trend; the current month is still incomplete, “-” means no data.
25/100Low · An estimate of weather conditions · not a PM2.5 forecast
10°/6°
Index by time of day
42/100Moderate
Night
Morning
Day
Evening9°/3°
Index by time of day
46/100Moderate
NightMorningDayEvening9°/2°
Index by time of day
56/100Moderate
NightMorningDayEvening8°/0°
Index by time of day
59/100Moderate
NightMorningDayEvening12°/5°
Index by time of day
35/100Moderate
NightMorningDayEvening11°/7°
Index by time of day
22/100Low
NightMorningDayEveningForecast of conditions that trap pollution near the surface
7°
Fog. Feels like 5°C
9°C98%
8°C97%7°C99%2m/sWind from the NE
3m/sWind gusts
Wind force: 2
Gusts up to 5 m/s are expected.
Belgium
10°C6°C9°C3°C9°C2°C8°C0°C12°C5°C11°C7°C8°C5°C10°C8°C10°C7°C7°C3°C
Highest current reading: 8.0 µg/m³ (43N073 - Vezin (Wallonia)). Lowest: 1.0 µg/m³ (43N121 - Offagne (Wallonia)). The list shows every sensor, highest first.
Source: atmy.ai monitoring network
Sensors in the summary by network: Government stations — 4 sensors, Sensor.Community — 2 sensors.
Atmy shows the networks’ readings after the Data Hub’s quality check: test devices and sensors that fail it are left out.
282
BrusselsBelgium
93GhentBelgium
49LeuvenBelgium
47Cities 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.
Daily mean PM2.5 of the city sensors, µg/m³
Click a day to see its date and value.
An Atmy card with the air quality in Namur now: it is refreshed every 15 minutes and links to this page. Paste the code into your site.
Belgium · City ranking · All pilot cities
Daily mean PM2.5 on November 10, 2026 (00:00–24:00 UTC = 01:00–01:00 UTC+1): 10 µg/m³ from 6 sensors that passed the quality check — the same value as in the Atmy Data Hub. No. 10 of 10 cities in Belgium and No. 538 of 676 worldwide, from the most polluted.
Right now in Namur, PM2.5 averages 4.5 µg/m³ — “good” on the US EPA scale (approximate, from hourly readings). Mean of 6 sensors from Government stations, Sensor.Community, readings from 21:00–22:57 local time (20:00–21:57 UTC), summary prepared at 23:00 local time. Median: 4.4 µg/m³; range across sensors: 1.0–8.0 µg/m³.
The current level is “good” (US EPA scale, approximate). Air quality is satisfactory; no restrictions are recommended. This is the standard guidance of the scale, not medical advice.
Highest current reading: 8.0 µg/m³ (43N073 - Vezin (Wallonia)). Lowest: 1.0 µg/m³ (43N121 - Offagne (Wallonia)). The list shows every sensor, highest first.
From Atmy sensors and connected public networks (citizen, experimental and government monitors), aggregated by Atmy. Values are approximate; see the methodology.
The summary is rebuilt every 15 minutes from the latest reading of each sensor, each no older than one hour.
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
