SmogRank / Cameroon / Littoral

Air quality in Douala

Littoral, Cameroon. PM2.5 from 5 low-cost sensors, updated hourly.

25.5µg/m³
Moderate

Latest hour (16:00 UTC), 1.7× the WHO 24-hour guideline.

Rank, worst first

24 hours–not enough data
7 days#171of 2,330, at 18.6 µg/m³
30 days#205of 2,324, at 16.7 µg/m³
This year–not enough data

The last 12 months, day by day

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data2026-06-16: no data2026-06-17: no data2026-06-18: no data2026-06-19: no data2026-06-20: no data2026-06-21: no data2026-06-22: no data2026-06-23: no data2026-06-24: no data2026-06-25: no data2026-06-26: no data2026-06-27: no data2026-06-28: no data2026-06-29: no data2026-06-30: no data2026-07-01: no data2026-07-02: no data2026-07-03: no data2026-07-04: no data2026-07-05: no data2026-07-06: no data2026-07-07: no data2026-07-08: no data2026-07-09: no data2026-07-10: no data2026-07-11: no data2026-07-12: no data2026-07-13: no data2026-07-14: no data2026-07-15: no data2026-07-16: no data2026-07-17: no data2026-07-18: no data2026-07-19: no data2026-07-20: no data2026-07-21: no data2026-07-22: no data2026-07-23: no data2026-07-24: no data2026-07-25: no data2026-07-26: no data2026-07-27: no data2026-07-28: no data2026-07-29: no data2026-07-30: no data2026-07-31: no data2026-08-01: no data2026-08-02: no data2026-08-03: no data2026-08-04: no data2026-08-05: no data2026-08-06: no data2026-08-07: no data2026-08-08: no data2026-08-09: no data2026-08-10: no data2026-08-11: no data2026-08-12: no data2026-08-13: no data2026-08-14: 17.5 µg/m³2026-08-15: 16.1 µg/m³2026-08-16: 13.4 µg/m³2026-08-17: no data2026-08-18: no data2026-08-19: no data2026-08-20: no data2026-08-21: no data2026-08-22: no data2026-08-23: no data2026-08-24: 18.1 µg/m³2026-08-25: 17.7 µg/m³2026-08-26: 20.2 µg/m³2026-08-27: no data2026-08-28: no data2026-08-29: no data2026-08-30: 12.1 µg/m³2026-08-31: 16.8 µg/m³2026-09-01: 14.4 µg/m³2026-09-02: no data2026-09-03: 15.8 µg/m³2026-09-04: 15.4 µg/m³2026-09-05: 16.3 µg/m³2026-09-06: 12.3 µg/m³2026-09-07: 18.7 µg/m³2026-09-08: 17.1 µg/m³2026-09-09: no data2026-09-10: no data2026-09-11: no data2026-09-12: no data2026-09-13: 12.2 µg/m³2026-09-14: 14.3 µg/m³2026-09-15: 14.3 µg/m³2026-09-16: 15.1 µg/m³2026-09-17: no data2026-09-18: 21.7 µg/m³2026-09-19: no data2026-09-20: 17.0 µg/m³2026-09-21: 16.2 µg/m³2026-09-22: 17.9 µg/m³2026-09-23: 17.6 µg/m³2026-09-24: no data2026-09-25: 17.0 µg/m³2026-09-26: 20.9 µg/m³2026-09-27: 13.6 µg/m³2026-09-28: 19.2 µg/m³2026-09-29: 19.7 µg/m³2026-09-30: 21.0 µg/m³
22 of 30 measured days were over the WHO 24-hour guideline (15 µg/m³). One row per month, one square per local day.
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

Last 4 days, hour by hour

152162026-09-30 23:00 UTC: 17.6 µg/m³2026-10-01 00:00 UTC: 22.5 µg/m³2026-10-01 01:00 UTC: 21.1 µg/m³2026-10-01 03:00 UTC: 20.3 µg/m³2026-10-01 07:00 UTC: 16.0 µg/m³2026-10-01 08:00 UTC: 16.8 µg/m³2026-10-01 09:00 UTC: 23.9 µg/m³2026-10-01 10:00 UTC: 18.6 µg/m³2026-10-01 12:00 UTC: 27.4 µg/m³2026-10-01 13:00 UTC: 151.8 µg/m³2026-10-01 14:00 UTC: 18.2 µg/m³2026-10-01 15:00 UTC: 215.5 µg/m³2026-10-01 16:00 UTC: 25.5 µg/m³Sep 28Sep 29Sep 30Oct 1
Times in UTC. Dashed line: WHO 24-hour guideline (15 µg/m³).

Its world rank, day by day

#1#407Sep
Rank on each day's board (1 = most polluted city that day).

2026 against 2025, month by month

15JanFebMarAprMayJunJulAugSep 2026: 16.7 µg/m³SepOctNovDec
Faded bars: 2025. A month shows once it has 10 measured days.

Monitors

StationOperatorType
Behind Mbingo Annex Bonaberi (CAIC office)CC BY 4.0AirGradientLow-cost
CAD 3/LogbabaCC0 1.0ClarityLow-cost
CAD 4/Bonassama-BonaberiCC0 1.0ClarityLow-cost
CAD2/NewbellCC0 1.0ClarityLow-cost
CAD 5/BonamoussadiCC0 1.0ClarityLow-cost

No reference monitor here, so the value is the median of low-cost sensors (at least two reporting each hour). Low-cost sensors can read high in humid air. Data via OpenAQ; licences as listed. How we rank. Embed this on your site.

Other cities in Cameroon

30-day averages, µg/m³. All of Cameroon.

Updated 2026-10-01 17:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.