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Air quality · Littoral, Cameroon

Douala Air Quality Index (AQI) today

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

52 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 67.

Over the next 24 hours the model expects the AQI to range from 42 around 13:00 to 78 around 03:00 (4 Nov).

625th most polluted of 849 cities worldwide right now, 2nd 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 · 68 15:00 · 69 16:00 · 70 17:00 · 70 18:00 · 73 19:00 · 77 20:00 · 78 21:00 · 79 22:00 · 80 23:00 · 81 00:00 · 78 01:00 · 75 02:00 · 70 03:00 · 67 04:00 · 66 05:00 · 63 06:00 · 62 07:00 · 62 08:00 · 60 09:00 · 58 10:00 · 55 11:00 · 53 12:00 · 52 13:00 · 52 14:00 · 52 15:00 · 51 16:00 · 50 17:00 · 48 18:00 · 48 19:00 · 52 20:00 · 59 21:00 · 66 22:00 · 70 23:00 · 73 00:00 · 74 01:00 · 75 02:00 · 77 03:00 · 78 04:00 · 77 05:00 · 76 06:00 · 71 07:00 · 63 08:00 · 59 09:00 · 56 10:00 · 54 11:00 · 51 12:00 · 45 13:00 · 42 14:00 · 40 15:00 · 38 16:00 · 38 17:00 · 38 18:00 · 41 19:00 · 54 20:00 · 62 21:00 · 66 22:00 · 72 23:00 · 78 00:00 · 83 01:00 · 86 02:00 · 87 03:00 · 85 04:00 · 83 05:00 · 81 06:00 · 80 07:00 · 78 08:00 · 67 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 14:0068
Mon 15:0069
Mon 16:0070
Mon 17:0070
Mon 18:0073
Mon 19:0077
Mon 20:0078
Mon 21:0079
Mon 22:0080
Mon 23:0081
Tue 00:0078
Tue 01:0075
Tue 02:0070
Tue 03:0067
Tue 04:0066
Tue 05:0063
Tue 06:0062
Tue 07:0062
Tue 08:0060
Tue 09:0058
Tue 10:0055
Tue 11:0053
Tue 12:0052
Tue 13:00 · Now52
Tue 14:00 · Forecast52
Tue 15:00 · Forecast51
Tue 16:00 · Forecast50
Tue 17:00 · Forecast48
Tue 18:00 · Forecast48
Tue 19:00 · Forecast52
Tue 20:00 · Forecast59
Tue 21:00 · Forecast66
Tue 22:00 · Forecast70
Tue 23:00 · Forecast73
Wed 00:00 · Forecast74
Wed 01:00 · Forecast75
Wed 02:00 · Forecast77
Wed 03:00 · Forecast78
Wed 04:00 · Forecast77
Wed 05:00 · Forecast76
Wed 06:00 · Forecast71
Wed 07:00 · Forecast63
Wed 08:00 · Forecast59
Wed 09:00 · Forecast56
Wed 10:00 · Forecast54
Wed 11:00 · Forecast51
Wed 12:00 · Forecast45
Wed 13:00 · Forecast42
Wed 14:00 · Forecast40
Wed 15:00 · Forecast38
Wed 16:00 · Forecast38
Wed 17:00 · Forecast38
Wed 18:00 · Forecast41
Wed 19:00 · Forecast54
Wed 20:00 · Forecast62
Wed 21:00 · Forecast66
Wed 22:00 · Forecast72
Wed 23:00 · Forecast78
Thu 00:00 · Forecast83
Thu 01:00 · Forecast86
Thu 02:00 · Forecast87
Thu 03:00 · Forecast85
Thu 04:00 · Forecast83
Thu 05:00 · Forecast81
Thu 06:00 · Forecast80
Thu 07:00 · Forecast78
Thu 08:00 · Forecast67

Pollutants this hour

  • PM2.5 9.6 µg/m³ 24-hour mean 17.5 µg/m³ · 1.2× WHO’s 24-hour guideline (15) 52
  • PM10 16 µg/m³ 15
  • O₃ 70 µg/m³ 25
  • NO₂ 0 µg/m³ 0
  • SO₂ 1 µg/m³ 0
  • CO 0.15 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
Yaoundé Centre 67
Bata Equatorial Guinea 31
Aba Nigeria 64
Ciudad de la Paz Equatorial Guinea 55
Port Harcourt Nigeria 56
Enugu Nigeria 86
Onitsha Nigeria 75

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 Douala’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 Douala right now?
52 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 Douala 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 Douala get better or worse tomorrow?
Over the next 24 hours the model expects the AQI to range from 42 around 13:00 to 78 around 03:00 (4 Nov). Forecasts beyond a day are less certain.

How does Douala compare with other cities?
Right now it is the 625th most polluted of 849 cities we track worldwide, and 2nd of 2 in Cameroon, all on the same US EPA scale.

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