GlobeMetrics
EN
  • English✓
  • हिंदी—
  • मराठी—

Try “Pune”, “Poona” or “पुणे”

Air quality · Centre, Cameroon

Yaoundé Air Quality Index (AQI) today

Modelled estimate for 13:00 local time (UTC+1), refreshed 3 Nov, 07:52 UTC+0.

67 Moderate

Live estimate · modelled

US EPA AQI13:00 UTC+1, 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 77.

Over the next 24 hours the model expects the AQI to range from 18 around 07:00 to 67 around 14:00 (3 Nov).

421st most polluted of 849 cities worldwide right now, 1st of 2 in Cameroon.

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

14:00 · 69 15:00 · 69 16:00 · 69 17:00 · 70 18:00 · 75 19:00 · 82 20:00 · 85 21:00 · 87 22:00 · 89 23:00 · 91 00:00 · 93 01:00 · 95 02:00 · 93 03:00 · 87 04:00 · 78 05:00 · 71 06:00 · 67 07:00 · 66 08:00 · 65 09:00 · 65 10:00 · 66 11:00 · 66 12:00 · 67 13:00 · 67 14:00 · 67 15:00 · 66 16:00 · 66 17:00 · 65 18:00 · 64 19:00 · 61 20:00 · 58 21:00 · 57 22:00 · 53 23:00 · 46 00:00 · 34 01:00 · 25 02:00 · 22 03:00 · 20 04:00 · 19 05:00 · 19 06:00 · 19 07:00 · 18 08:00 · 20 09:00 · 23 10:00 · 31 11:00 · 38 12:00 · 45 13:00 · 49 14:00 · 51 15:00 · 52 16:00 · 52 17:00 · 53 18:00 · 53 19:00 · 53 20:00 · 52 21:00 · 49 22:00 · 38 23:00 · 31 00:00 · 25 01:00 · 22 02:00 · 20 03:00 · 20 04:00 · 19 05:00 · 19 06:00 · 18 07:00 · 18 08:00 · 18 Now

US EPA AQI per hour, UTC+1. 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 14:0069
Mon 15:0069
Mon 16:0069
Mon 17:0070
Mon 18:0075
Mon 19:0082
Mon 20:0085
Mon 21:0087
Mon 22:0089
Mon 23:0091
Tue 00:0093
Tue 01:0095
Tue 02:0093
Tue 03:0087
Tue 04:0078
Tue 05:0071
Tue 06:0067
Tue 07:0066
Tue 08:0065
Tue 09:0065
Tue 10:0066
Tue 11:0066
Tue 12:0067
Tue 13:00 · Now67
Tue 14:00 · Forecast67
Tue 15:00 · Forecast66
Tue 16:00 · Forecast66
Tue 17:00 · Forecast65
Tue 18:00 · Forecast64
Tue 19:00 · Forecast61
Tue 20:00 · Forecast58
Tue 21:00 · Forecast57
Tue 22:00 · Forecast53
Tue 23:00 · Forecast46
Wed 00:00 · Forecast34
Wed 01:00 · Forecast25
Wed 02:00 · Forecast22
Wed 03:00 · Forecast20
Wed 04:00 · Forecast19
Wed 05:00 · Forecast19
Wed 06:00 · Forecast19
Wed 07:00 · Forecast18
Wed 08:00 · Forecast20
Wed 09:00 · Forecast23
Wed 10:00 · Forecast31
Wed 11:00 · Forecast38
Wed 12:00 · Forecast45
Wed 13:00 · Forecast49
Wed 14:00 · Forecast51
Wed 15:00 · Forecast52
Wed 16:00 · Forecast52
Wed 17:00 · Forecast53
Wed 18:00 · Forecast53
Wed 19:00 · Forecast53
Wed 20:00 · Forecast52
Wed 21:00 · Forecast49
Wed 22:00 · Forecast38
Wed 23:00 · Forecast31
Thu 00:00 · Forecast25
Thu 01:00 · Forecast22
Thu 02:00 · Forecast20
Thu 03:00 · Forecast20
Thu 04:00 · Forecast19
Thu 05:00 · Forecast19
Thu 06:00 · Forecast18
Thu 07:00 · Forecast18
Thu 08:00 · Forecast18

Pollutants this hour

  • PM2.5 18.3 µg/m³ 24-hour mean 22.9 µg/m³ · 1.5× WHO’s 24-hour guideline (15) 67
  • PM10 31 µg/m³ 28
  • O₃ 78 µg/m³ 30
  • NO₂ 1 µg/m³ 0
  • SO₂ 1 µg/m³ 0
  • CO 0.24 mg/m³ 1

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
Douala Littoral 52
Ciudad de la Paz Equatorial Guinea 55
Bata Equatorial Guinea 31
Libreville Gabon 27
Aba Nigeria 64
Port Harcourt Nigeria 56
Enugu Nigeria 86

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 Yaoundé’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 Yaoundé right now?
67 on the US EPA scale (Moderate) at 13:00 UTC+1, 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 Yaoundé 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 Yaoundé get better or worse tomorrow?
Over the next 24 hours the model expects the AQI to range from 18 around 07:00 to 67 around 14:00 (3 Nov). Forecasts beyond a day are less certain.

How does Yaoundé compare with other cities?
Right now it is the 421st most polluted of 849 cities we track worldwide, and 1st of 2 in Cameroon, all on the same US EPA scale.

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