Air Quality Lab — Port Harcourt, Nigeria
Air Quality Profile·
Port Harcourt reports an annual PM2.5 of 40.1 µg/m³. That's above the EU annual limit of 25 µg/m³ — long-term exposure here carries documented health trade-offs.
Port Harcourt
Nigeria
NigeriaAnnual Average
UnhealthyWHO annual classification
40.1µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
7373 µg/m³ — Very Unhealthy
6666 µg/m³ — Very Unhealthy
4949 µg/m³ — Unhealthy
3232 µg/m³ — Poor
3030 µg/m³ — Poor
2727 µg/m³ — Poor
3535 µg/m³ — Poor
3232 µg/m³ — Poor
2424 µg/m³ — Moderate
2424 µg/m³ — Moderate
3434 µg/m³ — Poor
5555 µg/m³ — Very Unhealthy
Jan
Feb
Mar
Apr
May
Jun
7373 µg/m³ — Very Unhealthy
6666 µg/m³ — Very Unhealthy
4949 µg/m³ — Unhealthy
3232 µg/m³ — Poor
3030 µg/m³ — Poor
2727 µg/m³ — Poor
Jul
Aug
Sep
Oct
Nov
Dec
3535 µg/m³ — Poor
3232 µg/m³ — Poor
2424 µg/m³ — Moderate
2424 µg/m³ — Moderate
3434 µg/m³ — Poor
5555 µg/m³ — Very Unhealthy
Best months: Jun, Sep–OctWorst months: Jan–Feb, Dec
Moderate15–25 µg/m³Poor25–35 µg/m³Unhealthy35–50 µg/m³Very Unhealthy50–75 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across Nigeria
Port Harcourt: 40.1 µg/m³. Typical range in Nigeria: 37.1–48.1 µg/m³. Low anchor: Bonny, 25.7 µg/m³. High anchor: Jos, 64.6 µg/m³.
233 cities tracked