France · The summary is refreshed every 15 minutes.
No current value: fewer than four sensors at different places are reporting now.
Cognac, November 10, 2026: daily mean PM2.5 7 µg/m³ (6 sensors), level “Low” — as in the Atmy Data Hub. Open methodology and data in JSON: Methodology and data sources · JSON
There are not enough fresh measurements for Cognac right now. From 10:00 to 21:00 local time the city mean PM2.5 fell from 5.3 to 4.0 µg/m³. The highest hour was 12:00 with 12.3 µg/m³.
The weather data do not point to a clear reason for this level.
Weather now: cloudy, 15°C, wind 2 m/s, humidity 88%. By 10:00 the wind is expected to pick up to 4 m/s, which may clear the air. Precipitation is expected around 03:00; it may wash particles out.
Written automatically at 22:09 local time (21:09 UTC) from sensor measurements and the weather forecast. Values are approximate; hypotheses are marked.
2 m/s
Wind, ENE
0 mm
Precipitation today
7 µg/m³ Low
Daily mean PM2.5 on November 10, 2026 (00:00–24:00 UTC = 01:00–01:00 UTC+1): 7 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.
20/100Low · An estimate of weather conditions · not a PM2.5 forecast
20°/13°
Index by time of day
52/100Moderate
Night
Morning
Day
Evening15°/10°
Index by time of day
31/100Low
NightMorningDayEvening11°/5°
Index by time of day
36/100Moderate
NightMorningDayEvening13°/1°
Index by time of day
55/100Moderate
NightMorningDayEvening17°/11°
Index by time of day
44/100Moderate
NightMorningDayEvening16°/11°
Index by time of day
52/100Moderate
NightMorningDayEveningForecast of conditions that trap pollution near the surface
15°
Cloudy. Feels like 15°C
13°C96%
20°C67%15°C84%2m/sWind from the ENE
4m/sWind gusts
Wind force: 2
Gusts up to 5 m/s are expected.
France
20°C13°C
15°C10°C11°C5°C13°C1°C17°C11°C16°C11°C16°C14°C
15°C12°C
13°C11°C14°C9°C207
RennesFrance
20ToulouseFrance
18VilleurbanneFrance
16Cities 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.
France · City ranking · All pilot cities
Daily mean PM2.5 on November 10, 2026 (00:00–24:00 UTC = 01:00–01:00 UTC+1): 7 µg/m³ from 6 sensors that passed the quality check — the same value as in the Atmy Data Hub.
Fresh data for Cognac are insufficient (last update: 21:45 local time, 20:45 UTC). Open the map for the latest readings of individual sensors.
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
