AirNow by Skymory

Romania · Europe/Bucharest

Bucharest air quality

28

Good

CAMS model-based US AQI estimate

Highest pollutant sub-index: PM2.5

Model values for Oct 02 10:00 EEST · 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 particles7.3 µg/m³
  • PM10Coarse particles7.3 µg/m³
  • O3Ozone61.6 µg/m³
  • NO2Nitrogen dioxide7.1 µg/m³
  • SO2Sulphur dioxide3.1 µg/m³
  • COCarbon monoxide201.2 µg/m³

Next 24 hours: PM2.5

Modeled PM2.5 forecast (µg/m³)Actual model samples spaced by their valid times. Range 4.2 to 11.6. Forecast, not observations.Oct 02 11:00 EESTOct 03 10:00 EEST
Modeled PM2.5 forecast (µg/m³) · 4.2–11.6; 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
6.66.673.33.73.2177.2
5.45.580.32.33.0161.9
4.54.684.71.72.6154.1
4.24.487.41.52.3150.1
4.24.689.61.52.0147.8
4.44.990.71.51.8145.6
4.75.390.21.91.7144.0
5.46.085.13.71.7146.6
6.77.375.17.91.8156.3
8.28.966.310.61.9167.5
9.09.863.610.21.9170.9
9.510.361.79.21.9172.1
9.910.759.38.71.9174.3
10.010.857.08.41.9175.9
9.710.555.77.61.9175.7
9.410.254.96.42.0177.0
9.29.953.65.72.0179.9
9.09.651.85.42.0184.4
9.19.749.55.42.0189.9
9.510.147.15.72.0195.9
10.310.844.26.52.1203.3
11.612.140.88.42.1215.0
11.612.142.08.72.2221.4
9.610.055.95.52.5204.7
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 10:00 EEST. Retrieved: 2026-10-02T04:53:42.854691+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 9 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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