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Air quality · Coahuila, Mexico

Torreón Air Quality Index (AQI) today

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

17 Good

Live estimate · modelled

US EPA AQI07:00 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 52.

Over the next 24 hours the model expects the AQI to range from 15 around 10:00 to 44 around 07:00 (4 Nov).

844th most polluted of 849 cities worldwide right now, 20th 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

08:00 · 74 09:00 · 72 10:00 · 64 11:00 · 59 12:00 · 54 13:00 · 51 14:00 · 43 15:00 · 38 16:00 · 39 17:00 · 42 18:00 · 43 19:00 · 42 20:00 · 49 21:00 · 54 22:00 · 57 23:00 · 59 00:00 · 59 01:00 · 58 02:00 · 56 03:00 · 52 04:00 · 38 05:00 · 27 06:00 · 19 07:00 · 17 08:00 · 19 09:00 · 18 10:00 · 15 11:00 · 18 12:00 · 20 13:00 · 23 14:00 · 26 15:00 · 30 16:00 · 32 17:00 · 34 18:00 · 35 19:00 · 35 20:00 · 33 21:00 · 31 22:00 · 28 23:00 · 26 00:00 · 25 01:00 · 27 02:00 · 30 03:00 · 32 04:00 · 34 05:00 · 35 06:00 · 38 07:00 · 44 08:00 · 53 09:00 · 44 10:00 · 36 11:00 · 32 12:00 · 31 13:00 · 32 14:00 · 35 15:00 · 40 16:00 · 44 17:00 · 46 18:00 · 48 19:00 · 48 20:00 · 47 21:00 · 52 22:00 · 55 23:00 · 58 00:00 · 61 01:00 · 64 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 08:0074
Mon 09:0072
Mon 10:0064
Mon 11:0059
Mon 12:0054
Mon 13:0051
Mon 14:0043
Mon 15:0038
Mon 16:0039
Mon 17:0042
Mon 18:0043
Mon 19:0042
Mon 20:0049
Mon 21:0054
Mon 22:0057
Mon 23:0059
Tue 00:0059
Tue 01:0058
Tue 02:0056
Tue 03:0052
Tue 04:0038
Tue 05:0027
Tue 06:0019
Tue 07:00 · Now17
Tue 08:00 · Forecast19
Tue 09:00 · Forecast18
Tue 10:00 · Forecast15
Tue 11:00 · Forecast18
Tue 12:00 · Forecast20
Tue 13:00 · Forecast23
Tue 14:00 · Forecast26
Tue 15:00 · Forecast30
Tue 16:00 · Forecast32
Tue 17:00 · Forecast34
Tue 18:00 · Forecast35
Tue 19:00 · Forecast35
Tue 20:00 · Forecast33
Tue 21:00 · Forecast31
Tue 22:00 · Forecast28
Tue 23:00 · Forecast26
Wed 00:00 · Forecast25
Wed 01:00 · Forecast27
Wed 02:00 · Forecast30
Wed 03:00 · Forecast32
Wed 04:00 · Forecast34
Wed 05:00 · Forecast35
Wed 06:00 · Forecast38
Wed 07:00 · Forecast44
Wed 08:00 · Forecast53
Wed 09:00 · Forecast44
Wed 10:00 · Forecast36
Wed 11:00 · Forecast32
Wed 12:00 · Forecast31
Wed 13:00 · Forecast32
Wed 14:00 · Forecast35
Wed 15:00 · Forecast40
Wed 16:00 · Forecast44
Wed 17:00 · Forecast46
Wed 18:00 · Forecast48
Wed 19:00 · Forecast48
Wed 20:00 · Forecast47
Wed 21:00 · Forecast52
Wed 22:00 · Forecast55
Wed 23:00 · Forecast58
Thu 00:00 · Forecast61
Thu 01:00 · Forecast64

Pollutants this hour

  • PM2.5 2.7 µg/m³ 24-hour mean 9.4 µg/m³ · within WHO’s 24-hour guideline (15) 17
  • PM10 3 µg/m³ 3
  • O₃ 32 µg/m³ 11
  • NO₂ 5 µg/m³ 2
  • SO₂ 1 µg/m³ 0
  • CO 0.14 mg/m³ 3

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
Saltillo Coahuila 38
Monterrey Nuevo León 54
Culiacán Sinaloa 55
Aguascalientes Aguascalientes 63
Chihuahua Chihuahua 14
San Luis Potosí San Luis Potosí 56
León Guanajuato 46

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 Torreón’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 Torreón right now?
17 on the US EPA scale (Good) at 07:00 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 Torreón 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 Torreón get better or worse tomorrow?
Over the next 24 hours the model expects the AQI to range from 15 around 10:00 to 44 around 07:00 (4 Nov). Forecasts beyond a day are less certain.

How does Torreón compare with other cities?
Right now it is the 844th most polluted of 849 cities we track worldwide, and 20th of 22 in Mexico, all on the same US EPA scale.

Why does another app show a different AQI for Torreón?
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.