Bangladesh · Asia/Dhaka
Chattogram air quality
91
Moderate
CAMS model-based US AQI estimate
Highest pollutant sub-index: PM2.5
Model values for Oct 02 13:00 +06 · 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 particles22.3 µg/m³
- PM10Coarse particles24.8 µg/m³
- O3Ozone127.2 µg/m³
- NO2Nitrogen dioxide3.2 µg/m³
- SO2Sulphur dioxide8.7 µg/m³
- COCarbon monoxide268.8 µg/m³
Weather in Chattogram
See the temperature, rain and wind forecast for Chattogram.
Chattogram weather forecast on SkymoryNext 24 hours: PM2.5
Pollutant forecast
Hourly model samples in local time; no interpolation.
| Local time | PM2.5 µg/m³ | PM10 µg/m³ | O3 µg/m³ | NO2 µg/m³ | SO2 µg/m³ | CO µg/m³ |
|---|---|---|---|---|---|---|
| 24.2 | 26.8 | 126.9 | 3.2 | 8.8 | 265.9 | |
| 24.8 | 27.5 | 123.9 | 3.7 | 8.8 | 265.7 | |
| 25.9 | 28.6 | 115.7 | 5.0 | 8.7 | 267.5 | |
| 26.7 | 29.3 | 98.0 | 7.7 | 8.2 | 277.4 | |
| 29.4 | 32.0 | 78.0 | 13.6 | 7.5 | 308.6 | |
| 32.7 | 35.5 | 67.5 | 17.5 | 7.2 | 332.0 | |
| 36.6 | 39.9 | 61.4 | 21.1 | 7.2 | 354.8 | |
| 42.0 | 46.1 | 56.5 | 25.0 | 7.4 | 378.8 | |
| 46.5 | 51.2 | 51.1 | 27.8 | 7.4 | 396.8 | |
| 48.4 | 53.7 | 47.7 | 28.8 | 7.3 | 397.9 | |
| 49.4 | 55.3 | 46.1 | 27.8 | 6.8 | 384.5 | |
| 49.5 | 55.7 | 43.7 | 25.6 | 6.3 | 368.4 | |
| 50.1 | 56.4 | 38.3 | 23.8 | 5.6 | 358.2 | |
| 50.4 | 56.9 | 34.7 | 23.1 | 5.3 | 351.8 | |
| 50.1 | 56.7 | 33.7 | 22.3 | 5.0 | 344.2 | |
| 49.0 | 55.4 | 34.1 | 21.4 | 4.8 | 337.4 | |
| 49.1 | 55.5 | 31.8 | 22.5 | 4.7 | 351.2 | |
| 45.6 | 51.1 | 43.3 | 16.7 | 4.8 | 350.9 | |
| 38.4 | 46.1 | 79.0 | 9.8 | 6.7 | 296.0 | |
| 37.2 | 46.8 | 104.8 | 6.4 | 8.7 | 263.3 | |
| 38.1 | 47.8 | 119.3 | 4.4 | 8.9 | 253.2 | |
| 38.7 | 48.3 | 126.7 | 3.0 | 8.5 | 244.8 | |
| 39.3 | 48.6 | 129.4 | 2.5 | 8.1 | 243.8 | |
| 47.7 | 58.8 | 130.4 | 2.4 | 7.9 | 244.6 |
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 13:00 +06. Retrieved: 2026-10-02T04:44:08.448179+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 19 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
| Pollutant | Surface compatibility |
|---|---|
| PM2.5 | DIRECT_SURFACE |
| PM10 | DIRECT_SURFACE |
| O3 | DERIVABLE_SURFACE |
| NO2 | DERIVABLE_SURFACE |
| SO2 | DERIVABLE_SURFACE |
| CO | DERIVABLE_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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