Worst air pollution Loches, today and tomorrow

Today (21 July): Air quality in Loches is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 PM (O3: 37.6/100).
Tomorrow (22 July 2026): Air quality in Loches is fair. All pollutants stay as today. Pollution peaks around 2:00 PM (O3: 33.8/100). Airmine updates local air quality forecasts four times daily.

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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team

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In Loches, agricultural traffic and river-valley industry is the primary local source affecting air quality, near the Indre, though the wide Loire valley allows steady airflow, which usually keeps pollution from accumulating for long. Cold, still winter spells are the main risk for particulate build-up, while summer usually sees cleaner air except during occasional heatwave-driven ozone episodes.

Today - 21 July | Pollution peaks at 19:00

AQI:

Fair

37.6/100

PM2.5 (fine particles):

Good

9.4/100

PM10 (coarse particles):

Good

3.4/100

NO2 (nitrogen dioxide):

Good

4.3/100

O3 (ozone):

Fair

37.6/100

SO2 (sulfur dioxide):

Good

1.0/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

4.6/100

PM1 (ultrafine particles):

Good

6.9/100

Levels show the poorest local air quality during the day

Tomorrow - 22 July | Pollution peaks at 14:00

AQI:

Fair

33.8/100

PM2.5 (fine particles):

Good

6.7/100

PM10 (coarse particles):

Good

2.4/100

NO2 (nitrogen dioxide):

Good

5.4/100

O3 (ozone):

Fair

33.8/100

SO2 (sulfur dioxide):

Good

0.9/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

5.8/100

PM1 (ultrafine particles):

Good

6.2/100

Pollen forecast in Loches

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Frequently Asked Questions

Is air quality bad in Loches right now?

On 21 July 2026, overall air quality in Loches is fair. AQI is the main air quality indicator at 37.6/100. Pollution peaks around 7:00 PM (O3: 37.6/100).

Will air quality be worse tomorrow in Loches?

On 22 July 2026, air quality conditions in Loches will be similar to today, with AQI forecast at fair at 33.8/100. Pollution peaks around 2:00 PM (O3: 33.8/100).

When is air pollution at its worst in Loches?

In Loches, the combination of agricultural traffic and river-valley industry and heavy oak and plane pollen in spring is what most affects sensitive groups; the wide Loire valley allows steady airflow, so poor conditions rarely last more than a couple of days. The presence of Loire valley cereal farmland and vineyards in the area adds another layer to the local pattern.

Are air quality levels in Loches based on measurements or forecasts?

It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.

Why doesn’t the forecast always reflect wildfire impacts?

Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.

During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.

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Data provided by Airmine — Last update: 21 July 2026 at 05:44 CEST (Data is updated four times daily.)

This forecast is produced independently using Airmine's own atmospheric data and models.

Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.

For long term forecasts and maps, see the Airmine app