AirNow by Skymory

Italy · Europe/Rome

Rome air quality

62

Moderate

CAMS model-based US AQI estimate

Highest pollutant sub-index: PM2.5

Model values for Oct 02 09:00 CEST · 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 particles22.6 µg/m³
  • PM10Coarse particles23.1 µg/m³
  • O3Ozone16.1 µg/m³
  • NO2Nitrogen dioxide22.5 µg/m³
  • SO2Sulphur dioxide1.0 µg/m³
  • COCarbon monoxide359.6 µg/m³

Next 24 hours: PM2.5

Modeled PM2.5 forecast (µg/m³)Actual model samples spaced by their valid times. Range 8.0 to 31.1. Forecast, not observations.Oct 02 10:00 CESTOct 03 09:00 CEST
Modeled PM2.5 forecast (µg/m³) · 8.0–31.1; 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
15.917.361.414.91.2266.4
10.012.096.36.01.2211.7
8.510.7110.53.31.1192.8
8.010.8114.92.21.0182.9
8.111.7115.51.81.0177.8
8.713.1114.91.81.0174.4
9.113.8113.22.01.0171.5
8.512.5110.42.41.0168.8
8.011.4104.83.71.0167.2
8.110.894.26.31.0169.0
9.912.576.211.81.2182.1
12.915.664.317.41.4199.7
16.719.556.323.91.7222.6
20.723.647.030.82.0250.1
24.827.736.238.12.3279.1
28.130.928.641.22.3300.3
30.132.822.841.12.2321.1
31.133.917.239.51.9338.4
31.133.713.037.51.7349.9
30.332.710.635.31.6354.3
28.030.315.130.71.4341.6
27.429.512.729.31.3345.8
28.930.815.424.31.4364.4
25.027.033.721.51.3327.4
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 09:00 CEST. Retrieved: 2026-10-02T04:02:35.544603+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 15 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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