AirNow by Skymory

Haiti · America/Port-au-Prince

Port-au-Prince air quality

101

Unhealthy for sensitive groups

CAMS model-based US AQI estimate

Highest pollutant sub-index: PM2.5

Model values for Oct 02 03:00 EDT · 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 particles48.4 µg/m³
  • PM10Coarse particles49.8 µg/m³
  • O3Ozone9.7 µg/m³
  • NO2Nitrogen dioxide38.1 µg/m³
  • SO2Sulphur dioxide5.8 µg/m³
  • COCarbon monoxide1225.4 µg/m³

Next 24 hours: PM2.5

Modeled PM2.5 forecast (µg/m³)Actual model samples spaced by their valid times. Range 7.0 to 57.5. Forecast, not observations.Oct 02 04:00 EDTOct 03 03:00 EDT
Modeled PM2.5 forecast (µg/m³) · 7.0–57.5; 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
47.849.310.936.15.91188.3
47.148.812.133.96.01149.0
46.047.913.231.66.21107.8
47.249.223.927.76.51132.1
43.144.965.99.05.11122.0
14.516.976.32.67.1350.4
11.814.287.92.47.7282.7
9.711.893.92.16.7240.3
8.710.792.92.05.4212.3
7.99.791.12.24.7202.2
7.49.278.32.63.7192.7
7.08.769.82.42.9195.4
7.08.567.93.23.1206.8
7.88.966.04.63.4246.0
10.210.959.48.13.7331.6
22.423.031.022.93.6699.0
33.634.415.831.94.0974.9
43.544.310.536.95.01141.8
50.351.19.439.05.61236.4
55.556.49.040.76.21308.2
56.857.89.441.36.31308.2
57.258.39.041.16.21305.3
57.558.68.639.95.91289.6
56.958.08.538.35.61256.6
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 03:00 EDT. Retrieved: 2026-10-02T04:40:10.903841+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 17 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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