AirNow by Skymory

Malaysia · Asia/Kuala_Lumpur

Kuala Lumpur air quality

122

Unhealthy for sensitive groups

CAMS model-based US AQI estimate

Highest pollutant sub-index: PM2.5

Model values for Oct 02 15:00 +08 · CAMS model estimate, may differ from monitoring stations and street-level conditions

Data may be delayed

AirNow by Skymory is an independent service; it is not affiliated with or endorsed by U.S. EPA or the official AirNow service.

Pollutants now (modeled)

  • PM2.5Fine particles35.1 µg/m³
  • PM10Coarse particles35.2 µg/m³
  • O3Ozone213.7 µg/m³
  • NO2Nitrogen dioxide23.2 µg/m³
  • SO2Sulphur dioxide24.3 µg/m³
  • COCarbon monoxide1022.6 µg/m³

Next 24 hours: PM2.5

Modeled PM2.5 forecast (µg/m³)Actual model samples spaced by their valid times. Range 30.4 to 88.5. Forecast, not observations.Oct 02 16:00 +08Oct 03 15:00 +08
Modeled PM2.5 forecast (µg/m³) · 30.4–88.5; actual sample times, no interpolated hourly values.

Pollutant forecast

Hourly model samples in local time; no interpolation.

Local timePM2.5 µg/m³PM10 µg/m³O3 µg/m³NO2 µg/m³SO2 µg/m³CO µg/m³
36.536.6209.530.628.91105.6
43.043.1193.040.032.41192.4
58.959.0112.685.842.51665.6
76.276.342.8128.353.52264.6
61.861.819.4135.659.02513.3
72.872.80.7146.573.73124.2
88.588.54.6140.271.43058.4
70.370.313.7121.462.62936.6
66.866.823.4103.654.72698.5
67.367.323.392.248.62667.2
61.161.124.281.441.52471.7
59.960.022.876.739.82335.9
54.354.425.370.436.42170.6
42.042.023.169.835.11987.6
43.643.615.566.133.12002.9
52.452.48.566.936.52130.4
65.365.313.768.846.62415.8
46.646.699.153.449.71635.9
34.534.6149.839.743.21333.8
30.430.5178.126.332.81140.6
32.833.0208.718.427.11108.1
37.337.5229.013.322.81122.3
41.641.8230.111.419.41105.4
43.944.1243.312.820.71125.7
Data details: about this air quality estimate

Values are modeled by the Copernicus Atmosphere Monitoring Service (CAMS) global forecast, extracted and converted by Skymory for this city. They are model estimates on a coarse grid, not measurements from monitoring stations, and they do not resolve street-level exposure.

  • Model initialization: 2026-10-01T12:00:00+00:00. Values valid: Oct 02 15:00 +08. Retrieved: 2026-10-02T04:29:10.843680+00:00.
  • Page generated from a snapshot with data state STALE_USABLE; model age 19.9 hours at generation.
  • Nearest valid 0.4° model grid cell, about 12 km from the city point.
  • Gases are converted with matching model-level 137 temperature, humidity, surface pressure (lnsp) and hybrid coefficients; particulate matter is read directly from the surface fields.
  • AQI estimate completeness: COMPLETE (COMPLETE means all six pollutants have a complete model window).

The AQI estimate applies EPA breakpoints (May 2026) to explicit trailing model windows (PM 24 h, CO 8 h, NO2 1 h, SO2 and O3 per EPA rules). It is not a station observation, official daily maximum or NowCast, and the official AQI field remains unavailable.

Averaging windows used

  • CO: 8h window
  • NO2: 1h window
  • O3: 1h, 8h window
  • PM10: 24h window
  • PM2.5: 24h window
  • SO2: 1h, 24h window

Surface compatibility by pollutant

PollutantSurface compatibility
PM2.5DIRECT_SURFACE
PM10DIRECT_SURFACE
O3DERIVABLE_SURFACE
NO2DERIVABLE_SURFACE
SO2DERIVABLE_SURFACE
CODERIVABLE_SURFACE

Source and license

Contains modified Copernicus Atmosphere Monitoring Service information 2026; city extraction and concentration conversion. CAMS global atmospheric composition forecasts (ECMWF/CAMS). CC BY 4.0.

Provider times stay separate from page generation: collecting data or regenerating this page never resets the source time. Data sources and methodology

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