Air quality in Douala III, Littoral, Cameroon today
Mr. Duck’s Air Quality Score
Moderate air today for Douala III, Littoral, Cameroon
This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.
Air quality today
The air quality in Douala III is currently classified as Moderate. The primary pollutant identified for today is PM2.5 (fine particles).
Measurements from five valid sampling points show a PM2.5 concentration of 22.67 µg/m³. No PM10 value is available for this assessment. Data are shown via OpenAQ. This page is informational; for health guidance, use official sources such as EPA AirNow or WHO.
Latest sensor values
PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).
What the data includes
The dataset for Douala III in the Littoral region of Cameroon contains a single monitoring location, identified as COLLEGE NAL, which provides one row of measurements across six variables. The available pollutants are PM1, PM10, PM2.5, relative humidity, temperature and particle count (UM003). Freshness varies by parameter: the most recent readings for PM1, PM2.5, relative humidity, temperature and UM003 were recorded on 2026‑02‑10 at 22:00 UTC, while the latest PM10 value dates back to 2025‑01‑09 at 16:00 UTC. This means that five of the six metrics are updated within the last three days, whereas the coarse dust fraction (PM10) is over a year old.
All reported values are identical across their minimum, median and maximum statistics because only one observation exists for each pollutant. PM1 measures 13.275333340962726 µg/m³, PM2.5 registers 22.66999988555908 µg/m³ and PM10 shows 59.80355580647787 µg/m³. Relative humidity is recorded at 64.33016637166341 % and temperature at 27.774666690826418 °C. The particle concentration (UM003) stands at 954.0299997965494 particles per cubic centimetre.
Because the dataset relies on a single station, spatial coverage across Douala III is limited; conditions elsewhere in the city may differ from those captured at COLLEGE NAL. Moreover, the age of the PM10 measurement highlights an uneven temporal record, with one key pollutant lacking recent data while the others are current. Users should therefore interpret these figures as a snapshot from one location rather than a comprehensive view of air quality throughout the entire urban area.
Learn more about sources and filtering: About the data.
Trusted references: WHO (Air pollution) · US EPA AirNow · European Environment Agency (Air)
Latest sensor values (bars)
PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).
Data notes
The data shown for Douala III reflects five valid measurements and is marked as Updated within 3 days, with the most recent reading recorded on 2026‑02‑10 at 22:00 UTC. This snapshot provides a current view of ambient conditions but air quality can vary by location and time within the city, so values may differ across neighborhoods or during different periods of the day.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| COLLEGE NAL | pm1 | 13.275333340962726 | µg/m³ | 2026-02-10 22:00 UTC |
| COLLEGE NAL | pm10 | 59.80355580647787 | µg/m³ | 2025-01-09 16:00 UTC |
| COLLEGE NAL | pm25 | 22.66999988555908 | µg/m³ | 2026-02-10 22:00 UTC |
| COLLEGE NAL | relativehumidity | 64.33016637166341 | % | 2026-02-10 22:00 UTC |
| COLLEGE NAL | temperature | 27.774666690826418 | c | 2026-02-10 22:00 UTC |
| COLLEGE NAL | um003 | 954.0299997965494 | particles/cm³ | 2026-02-10 22:00 UTC |