GlobeMetrics
EN
  • English✓
  • हिंदी—
  • मराठी—

Try “Pune”, “Poona” or “पुणे”

Air quality · Antioquia, Colombia

Medellín Air Quality Index (AQI) today

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

51 Moderate

Live estimate · modelled

US EPA AQI07:00 UTC-5, 3 Nov Main pollutant: PM2.5

Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.

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 38.

Over the next 24 hours the model expects the AQI to range from 27 around 03:00 to 67 around 16:00 (3 Nov).

646th most polluted of 849 cities worldwide right now, 2nd of 6 in Colombia.

What to do today

  • Long walk or run outside OK, lighter if very sensitive
  • Kids playing outside OK
  • Airing the house Open
  • Mask outdoors Not needed

Based on the US EPA’s health statement: “Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.” General guidance, not medical advice.

Last 24 hours and next 48

Past hours Forecast

08:00 · 35 09:00 · 31 10:00 · 31 11:00 · 34 12:00 · 38 13:00 · 41 14:00 · 44 15:00 · 47 16:00 · 49 17:00 · 48 18:00 · 45 19:00 · 42 20:00 · 39 21:00 · 47 22:00 · 51 23:00 · 52 00:00 · 51 01:00 · 48 02:00 · 46 03:00 · 46 04:00 · 49 05:00 · 51 06:00 · 51 07:00 · 51 08:00 · 51 09:00 · 45 10:00 · 42 11:00 · 41 12:00 · 44 13:00 · 48 14:00 · 54 15:00 · 64 16:00 · 67 17:00 · 61 18:00 · 50 19:00 · 45 20:00 · 48 21:00 · 48 22:00 · 50 23:00 · 44 00:00 · 40 01:00 · 36 02:00 · 34 03:00 · 27 04:00 · 28 05:00 · 28 06:00 · 28 07:00 · 29 08:00 · 29 09:00 · 31 10:00 · 33 11:00 · 36 12:00 · 39 13:00 · 43 14:00 · 45 15:00 · 48 16:00 · 50 17:00 · 49 18:00 · 46 19:00 · 42 20:00 · 38 21:00 · 37 22:00 · 37 23:00 · 32 00:00 · 28 01:00 · 24 02:00 · 23 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 08:0035
Mon 09:0031
Mon 10:0031
Mon 11:0034
Mon 12:0038
Mon 13:0041
Mon 14:0044
Mon 15:0047
Mon 16:0049
Mon 17:0048
Mon 18:0045
Mon 19:0042
Mon 20:0039
Mon 21:0047
Mon 22:0051
Mon 23:0052
Tue 00:0051
Tue 01:0048
Tue 02:0046
Tue 03:0046
Tue 04:0049
Tue 05:0051
Tue 06:0051
Tue 07:00 · Now51
Tue 08:00 · Forecast51
Tue 09:00 · Forecast45
Tue 10:00 · Forecast42
Tue 11:00 · Forecast41
Tue 12:00 · Forecast44
Tue 13:00 · Forecast48
Tue 14:00 · Forecast54
Tue 15:00 · Forecast64
Tue 16:00 · Forecast67
Tue 17:00 · Forecast61
Tue 18:00 · Forecast50
Tue 19:00 · Forecast45
Tue 20:00 · Forecast48
Tue 21:00 · Forecast48
Tue 22:00 · Forecast50
Tue 23:00 · Forecast44
Wed 00:00 · Forecast40
Wed 01:00 · Forecast36
Wed 02:00 · Forecast34
Wed 03:00 · Forecast27
Wed 04:00 · Forecast28
Wed 05:00 · Forecast28
Wed 06:00 · Forecast28
Wed 07:00 · Forecast29
Wed 08:00 · Forecast29
Wed 09:00 · Forecast31
Wed 10:00 · Forecast33
Wed 11:00 · Forecast36
Wed 12:00 · Forecast39
Wed 13:00 · Forecast43
Wed 14:00 · Forecast45
Wed 15:00 · Forecast48
Wed 16:00 · Forecast50
Wed 17:00 · Forecast49
Wed 18:00 · Forecast46
Wed 19:00 · Forecast42
Wed 20:00 · Forecast38
Wed 21:00 · Forecast37
Wed 22:00 · Forecast37
Wed 23:00 · Forecast32
Thu 00:00 · Forecast28
Thu 01:00 · Forecast24
Thu 02:00 · Forecast23

Pollutants this hour

  • PM2.5 9.7 µg/m³ 24-hour mean 6.9 µg/m³ · within WHO’s 24-hour guideline (15) 51
  • PM10 10 µg/m³ 8
  • O₃ 65 µg/m³ 23
  • NO₂ 13 µg/m³ 6
  • SO₂ 8 µg/m³ 4
  • CO 0.86 mg/m³ 11

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
Bogotá Bogota D.C. 65
Cali Valle del Cauca Department 16
Cúcuta Norte de Santander Department 49
Cartagena Bolívar 39
Panama City Panama 17
Barranquilla Atlántico 49
Maracaibo Venezuela 39

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 Medellín’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 Medellín right now?
51 on the US EPA scale (Moderate) 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 Medellín today?
For most people, yes. The EPA’s statement for “Moderate”: Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution. General guidance, not medical advice.

Will the air in Medellín get better or worse tomorrow?
Over the next 24 hours the model expects the AQI to range from 27 around 03:00 to 67 around 16:00 (3 Nov). Forecasts beyond a day are less certain.

How does Medellín compare with other cities?
Right now it is the 646th most polluted of 849 cities we track worldwide, and 2nd of 6 in Colombia, all on the same US EPA scale.

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