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Air quality · Mexico

Chihuahua Air Quality Index (AQI) today

Modelled estimate for 06:00 local time (UTC-6), refreshed 3 Nov, 07:52 UTC+0.

16 Good

Live estimate · modelled

US EPA AQI06:00 UTC-6, 3 Nov Main pollutant: PM2.5

Air quality is satisfactory, and air pollution poses little or no risk.

This page uses EPA’s NowCast, which follows the last few hours, as the US government’s AirNow does. On a 24-hour average of particles, as many apps show, it is 17.

Over the next 24 hours the model expects the AQI to range from 14 around 07:00 to 49 around 00:00 (4 Nov).

847th most polluted of 849 cities worldwide right now, 21st of 22 in Mexico.

What to do today

  • Long walk or run outside OK
  • Kids playing outside OK
  • Airing the house Open
  • Mask outdoors Not needed

Based on the US EPA’s health statement: “Air quality is satisfactory, and air pollution poses little or no risk.” General guidance, not medical advice.

Last 24 hours and next 48

Past hours Forecast

07:00 · 32 08:00 · 32 09:00 · 29 10:00 · 23 11:00 · 18 12:00 · 15 13:00 · 18 14:00 · 19 15:00 · 22 16:00 · 24 17:00 · 26 18:00 · 28 19:00 · 28 20:00 · 28 21:00 · 26 22:00 · 24 23:00 · 22 00:00 · 24 01:00 · 27 02:00 · 26 03:00 · 24 04:00 · 21 05:00 · 18 06:00 · 16 07:00 · 14 08:00 · 17 09:00 · 21 10:00 · 17 11:00 · 14 12:00 · 18 13:00 · 21 14:00 · 25 15:00 · 29 16:00 · 32 17:00 · 35 18:00 · 37 19:00 · 37 20:00 · 35 21:00 · 38 22:00 · 43 23:00 · 46 00:00 · 49 01:00 · 49 02:00 · 49 03:00 · 47 04:00 · 44 05:00 · 41 06:00 · 39 07:00 · 41 08:00 · 42 09:00 · 42 10:00 · 30 11:00 · 22 12:00 · 20 13:00 · 24 14:00 · 29 15:00 · 33 16:00 · 37 17:00 · 39 18:00 · 40 19:00 · 39 20:00 · 47 21:00 · 52 22:00 · 46 23:00 · 38 00:00 · 33 01:00 · 29 Now

US EPA AQI per hour, UTC-6. Particles use EPA’s NowCast (a 12-hour weighted average), ozone and CO an 8-hour average. Lighter bars are the CAMS forecast.

Show as a table
TimeAQI
Mon 07:0032
Mon 08:0032
Mon 09:0029
Mon 10:0023
Mon 11:0018
Mon 12:0015
Mon 13:0018
Mon 14:0019
Mon 15:0022
Mon 16:0024
Mon 17:0026
Mon 18:0028
Mon 19:0028
Mon 20:0028
Mon 21:0026
Mon 22:0024
Mon 23:0022
Tue 00:0024
Tue 01:0027
Tue 02:0026
Tue 03:0024
Tue 04:0021
Tue 05:0018
Tue 06:00 · Now16
Tue 07:00 · Forecast14
Tue 08:00 · Forecast17
Tue 09:00 · Forecast21
Tue 10:00 · Forecast17
Tue 11:00 · Forecast14
Tue 12:00 · Forecast18
Tue 13:00 · Forecast21
Tue 14:00 · Forecast25
Tue 15:00 · Forecast29
Tue 16:00 · Forecast32
Tue 17:00 · Forecast35
Tue 18:00 · Forecast37
Tue 19:00 · Forecast37
Tue 20:00 · Forecast35
Tue 21:00 · Forecast38
Tue 22:00 · Forecast43
Tue 23:00 · Forecast46
Wed 00:00 · Forecast49
Wed 01:00 · Forecast49
Wed 02:00 · Forecast49
Wed 03:00 · Forecast47
Wed 04:00 · Forecast44
Wed 05:00 · Forecast41
Wed 06:00 · Forecast39
Wed 07:00 · Forecast41
Wed 08:00 · Forecast42
Wed 09:00 · Forecast42
Wed 10:00 · Forecast30
Wed 11:00 · Forecast22
Wed 12:00 · Forecast20
Wed 13:00 · Forecast24
Wed 14:00 · Forecast29
Wed 15:00 · Forecast33
Wed 16:00 · Forecast37
Wed 17:00 · Forecast39
Wed 18:00 · Forecast40
Wed 19:00 · Forecast39
Wed 20:00 · Forecast47
Wed 21:00 · Forecast52
Wed 22:00 · Forecast46
Wed 23:00 · Forecast38
Thu 00:00 · Forecast33
Thu 01:00 · Forecast29

Pollutants this hour

  • PM2.5 2.5 µg/m³ 24-hour mean 3.0 µg/m³ · within WHO’s 24-hour guideline (15) 16
  • PM10 3 µg/m³ 3
  • O₃ 24 µg/m³ 8
  • NO₂ 12 µg/m³ 6
  • SO₂ 1 µg/m³ 0
  • CO 0.22 mg/m³ 2

Modelled concentrations at the city’s location (CAMS). The sub-index uses the same averaging as the headline, so the highest one is the AQI.

Nearby cities

City AQI
Ciudad Juárez Chihuahua 27
El Paso United States 27
Torreón Coahuila 19
Culiacán Sinaloa 55
Hermosillo Sonora 16
Saltillo Coahuila 43
Monterrey Nuevo León 55

Where this number comes from

The Copernicus Atmosphere Monitoring Service (CAMS) forecasts air pollution worldwide on a grid (about 11 km over Europe, about 45 km elsewhere). We take the grid value at Chihuahua’s coordinates and score it with the US EPA’s method. It is a model, not a measurement: a nearby monitoring station can read quite differently, especially next to busy roads or during fires and dust storms.

Full methodology · Data: CAMS via Open-Meteo (CC BY 4.0); city list: GeoNames (CC BY 4.0).

  • Good 0–50
  • Moderate 51–100
  • Unhealthy for sensitive groups 101–150
  • Unhealthy 151–200
  • Very unhealthy 201–300
  • Hazardous 301–500

Questions

What is the AQI in Chihuahua right now?
16 on the US EPA scale (Good) at 06:00 UTC-6, 3 Nov. PM2.5 is the pollutant with the highest sub-index. This is a modelled estimate from the Copernicus Atmosphere Monitoring Service (CAMS), not a reading from a monitoring station.

Is it safe to exercise outside in Chihuahua today?
For most people, yes. The EPA’s statement for “Good”: Air quality is satisfactory, and air pollution poses little or no risk. General guidance, not medical advice.

Will the air in Chihuahua get better or worse tomorrow?
Over the next 24 hours the model expects the AQI to range from 14 around 07:00 to 49 around 00:00 (4 Nov). Forecasts beyond a day are less certain.

How does Chihuahua compare with other cities?
Right now it is the 847th most polluted of 849 cities we track worldwide, and 21st of 22 in Mexico, all on the same US EPA scale.

Why does another app show a different AQI for Chihuahua?
Apps differ in source (government stations, low-cost sensors or a model like this one), in scale (US EPA, European, or a national index) and in averaging (hourly or NowCast, 8-hour, 24-hour). This page uses the US EPA AQI with EPA’s NowCast for particles, computed from the CAMS forecast for the city’s location.