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Air quality · Bolívar, Colombia

Cartagena Air Quality Index (AQI) today

Modelled estimate for 07:00 local time (UTC-5), refreshed 3 Nov, 07:52 UTC+0.

39 Good

Live estimate · modelled

US EPA AQI07:00 UTC-5, 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 33 around 02:00 to 55 around 13:00 (3 Nov).

710th most polluted of 849 cities worldwide right now, 5th of 6 in Colombia.

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 · 54 09:00 · 52 10:00 · 51 11:00 · 48 12:00 · 48 13:00 · 49 14:00 · 52 15:00 · 53 16:00 · 54 17:00 · 55 18:00 · 55 19:00 · 55 20:00 · 54 21:00 · 54 22:00 · 54 23:00 · 54 00:00 · 54 01:00 · 54 02:00 · 53 03:00 · 52 04:00 · 47 05:00 · 43 06:00 · 40 07:00 · 39 08:00 · 41 09:00 · 44 10:00 · 48 11:00 · 52 12:00 · 54 13:00 · 55 14:00 · 55 15:00 · 55 16:00 · 54 17:00 · 52 18:00 · 52 19:00 · 51 20:00 · 51 21:00 · 51 22:00 · 48 23:00 · 44 00:00 · 39 01:00 · 36 02:00 · 33 03:00 · 34 04:00 · 35 05:00 · 36 06:00 · 37 07:00 · 37 08:00 · 36 09:00 · 35 10:00 · 32 11:00 · 33 12:00 · 33 13:00 · 34 14:00 · 35 15:00 · 36 16:00 · 36 17:00 · 36 18:00 · 36 19:00 · 35 20:00 · 34 21:00 · 33 22:00 · 32 23:00 · 31 00:00 · 31 01:00 · 31 02:00 · 31 Now

US EPA AQI per hour, UTC-5. 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 08:0054
Mon 09:0052
Mon 10:0051
Mon 11:0048
Mon 12:0048
Mon 13:0049
Mon 14:0052
Mon 15:0053
Mon 16:0054
Mon 17:0055
Mon 18:0055
Mon 19:0055
Mon 20:0054
Mon 21:0054
Mon 22:0054
Mon 23:0054
Tue 00:0054
Tue 01:0054
Tue 02:0053
Tue 03:0052
Tue 04:0047
Tue 05:0043
Tue 06:0040
Tue 07:00 · Now39
Tue 08:00 · Forecast41
Tue 09:00 · Forecast44
Tue 10:00 · Forecast48
Tue 11:00 · Forecast52
Tue 12:00 · Forecast54
Tue 13:00 · Forecast55
Tue 14:00 · Forecast55
Tue 15:00 · Forecast55
Tue 16:00 · Forecast54
Tue 17:00 · Forecast52
Tue 18:00 · Forecast52
Tue 19:00 · Forecast51
Tue 20:00 · Forecast51
Tue 21:00 · Forecast51
Tue 22:00 · Forecast48
Tue 23:00 · Forecast44
Wed 00:00 · Forecast39
Wed 01:00 · Forecast36
Wed 02:00 · Forecast33
Wed 03:00 · Forecast34
Wed 04:00 · Forecast35
Wed 05:00 · Forecast36
Wed 06:00 · Forecast37
Wed 07:00 · Forecast37
Wed 08:00 · Forecast36
Wed 09:00 · Forecast35
Wed 10:00 · Forecast32
Wed 11:00 · Forecast33
Wed 12:00 · Forecast33
Wed 13:00 · Forecast34
Wed 14:00 · Forecast35
Wed 15:00 · Forecast36
Wed 16:00 · Forecast36
Wed 17:00 · Forecast36
Wed 18:00 · Forecast36
Wed 19:00 · Forecast35
Wed 20:00 · Forecast34
Wed 21:00 · Forecast33
Wed 22:00 · Forecast32
Wed 23:00 · Forecast31
Thu 00:00 · Forecast31
Thu 01:00 · Forecast31
Thu 02:00 · Forecast31

Pollutants this hour

  • PM2.5 6.9 µg/m³ 24-hour mean 9.6 µg/m³ · within WHO’s 24-hour guideline (15) 39
  • PM10 10 µg/m³ 8
  • O₃ 54 µg/m³ 31
  • NO₂ 7 µg/m³ 3
  • SO₂ 5 µg/m³ 1
  • CO 0.32 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
Barranquilla Atlántico 49
Maracaibo Venezuela 39
Cúcuta Norte de Santander Department 49
Medellín Antioquia 51
Panama City Panama 17
Bogotá Bogota D.C. 65
Barquisimeto Venezuela 36

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 Cartagena’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 Cartagena right now?
39 on the US EPA scale (Good) at 07:00 UTC-5, 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 Cartagena 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 Cartagena get better or worse tomorrow?
Over the next 24 hours the model expects the AQI to range from 33 around 02:00 to 55 around 13:00 (3 Nov). Forecasts beyond a day are less certain.

How does Cartagena compare with other cities?
Right now it is the 710th most polluted of 849 cities we track worldwide, and 5th of 6 in Colombia, all on the same US EPA scale.

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