Gray air quality now

France · 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 Gray right now. From 10:00 to 17:00 local time the city mean PM2.5 fell from 8.5 to 7.0 µg/m³.

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

Weather now: fog, 11°C, wind 1 m/s, humidity 100%. By 09:00 the wind is expected to pick up to 4 m/s, which may clear the air.

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

1 m/s

Wind, E

9 mm

Precipitation today

Pollution accumulation index now

26/100Low · An estimate of weather conditions · not a PM2.5 forecast

Now2616
23.0007.0014.0022.00

Pollution accumulation forecast

Today — November 11

15°/10°

Index by time of day

33/100Low

  1. 33/100Night
  2. 27/100Morning
  3. 7/100Day
  4. 26/100Evening

Thursday — November 12

13°/8°

Index by time of day

47/100Moderate

  1. 47/100Night
  2. 30/100Morning
  3. 5/100Day
  4. 16/100Evening

Friday — November 13

9°/3°

Index by time of day

33/100Low

  1. 29/100Night
  2. 33/100Morning
  3. 7/100Day
  4. 26/100Evening

Saturday — November 14

9°/1°

Index by time of day

56/100Moderate

  1. 56/100Night
  2. 40/100Morning
  3. 10/100Day
  4. 28/100Evening

Sunday — November 15

11°/2°

Index by time of day

59/100Moderate

  1. 59/100Night
  2. 41/100Morning
  3. 6/100Day
  4. 14/100Evening

Monday — November 16

13°/7°

Index by time of day

37/100Moderate

  1. 37/100Night
  2. 25/100Morning
  3. 8/100Day
  4. 24/100Evening

Forecast of conditions that trap pollution near the surface

Weather

11°

Fog. Feels like 11°C

  1. MorningRain13°C97%
  2. DayCloudy14°C89%
  3. EveningFog12°C98%

Wind

1m/sWind from the E

1m/sWind gusts

Wind force: 1

Light wind is expected over the next few hours.

10-day weather forecast for Gray

France

  1. TodayNov 11Rain15°C10°C
  2. ThuNov 12Rain13°C8°C
  3. FriNov 13Cloudy9°C3°C
  4. SatNov 14Partly cloudy9°C1°C
  5. SunNov 15Cloudy11°C2°C
  6. MonNov 16Rain13°C7°C
  7. TueNov 17Rain14°C7°C
  8. WedNov 18Cloudy14°C11°C
  9. ThuNov 19Rain11°C8°C
  10. FriNov 20Rain11°C5°C

France: sensors in total

207

  1. RennesFrance

    20

  2. ToulouseFrance

    18

  3. VilleurbanneFrance

    16

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.

France · City ranking · All pilot cities

Questions

What is the air quality in Gray right now?

Fresh data for Gray are insufficient (last update: 18:45 local time, 17:45 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