AirNow city forecasts

London Modeled Air Quality — CAMS Forecast

United Kingdom · Europe/London

Data state: FRESH; source age at generation: 15.3 hours.

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CAMS modeled concentrations

PollutantConcentrationSurface compatibility
CO176.3 µg/m³DERIVABLE_SURFACE
NO25.0 µg/m³DERIVABLE_SURFACE
O373.7 µg/m³DERIVABLE_SURFACE
PM108.4 µg/m³DIRECT_SURFACE
PM2.55.9 µg/m³DIRECT_SURFACE
SO21.1 µg/m³DERIVABLE_SURFACE

Model initialization: . Valid: . Retrieved: 2026-10-01T12:45:39.158427+00:00.

Nearest valid 0.4° model grid cell; gases use matching model-level 137 temperature, humidity, lnsp and hybrid coefficients. This global model does not resolve street-level exposure.

CAMS model-based US AQI estimate

49 COMPLETE

Window ending 2026-10-01T15:00:00+00:00; window model run 2026-09-30T12:00:00+00:00. Contributors: co, no2, o3, pm10, pm2_5, so2.

Experimental trailing model estimate using EPA May 2026 breakpoints. Not a station observation, official daily maximum, or NowCast. Partial estimates do not imply six-pollutant completeness.

CAMS modeled PM2.5 forecast (µg/m³)Actual model samples spaced by their valid times. Range 6.0 to 13.6. Forecast, not observations.2026-10-01T16:00:00+00:002026-10-02T15:00:00+00:00
CAMS modeled PM2.5 forecast (µg/m³) · 6.0–13.6; actual sample times, no interpolated hourly values.

Modeled concentration forecast

Forecast table model initialization 2026-10-01T00:00:00+00:00. Actual hourly model samples; no interpolation.

Local timePM2.5 µg/m³PM10 µg/m³O3 µg/m³NO2 µg/m³SO2 µg/m³CO µg/m³
Oct 01 17:00 BST6.0 8.6 71.2 6.5 1.2 178.6
Oct 01 18:00 BST6.5 9.1 64.5 10.3 1.4 183.6
Oct 01 19:00 BST8.4 11.0 47.8 21.0 2.2 198.9
Oct 01 20:00 BST10.6 13.1 33.2 30.8 3.4 215.7
Oct 01 21:00 BST11.8 14.3 26.1 35.4 4.2 226.0
Oct 01 22:00 BST12.3 14.9 23.0 36.7 4.6 232.1
Oct 01 23:00 BST12.6 15.4 20.9 37.2 4.7 237.0
Oct 02 00:00 BST12.8 15.9 21.0 35.9 4.2 239.2
Oct 02 01:00 BST12.7 16.3 23.1 32.7 3.6 239.5
Oct 02 02:00 BST12.5 16.4 26.3 28.8 3.3 238.6
Oct 02 03:00 BST10.5 13.8 29.3 25.7 3.1 237.8
Oct 02 04:00 BST9.4 12.5 31.1 23.9 3.0 238.1
Oct 02 05:00 BST8.7 11.7 31.6 23.3 3.0 239.3
Oct 02 06:00 BST8.4 11.3 30.6 24.2 3.2 241.4
Oct 02 07:00 BST9.2 12.0 26.7 28.7 3.8 246.4
Oct 02 08:00 BST11.3 13.8 22.8 33.3 4.7 255.6
Oct 02 09:00 BST13.6 15.9 23.6 32.7 5.6 267.7
Oct 02 10:00 BST12.7 16.7 42.0 22.6 4.0 232.8
Oct 02 11:00 BST10.2 14.9 64.1 10.7 2.4 200.2
Oct 02 12:00 BST8.8 13.1 72.7 6.8 1.7 188.9
Oct 02 13:00 BST8.0 12.0 77.1 5.4 1.4 183.2
Oct 02 14:00 BST7.8 11.7 80.0 4.7 1.2 179.8
Oct 02 15:00 BST7.7 11.5 80.9 4.8 1.1 178.3
Oct 02 16:00 BST7.6 11.2 80.1 5.4 1.1 178.3

Source and license

Contains modified Copernicus Atmosphere Monitoring Service information 2026; city extraction and concentration conversion. CC BY 4.0.

Weather and air quality preserve independent provider timestamps.