Worst air pollution Port Harcourt, today and tomorrow
Today (16 July): Air quality in Port Harcourt is fair. AQI, PM2.5, NO2, O3, HCHO, and PM1 are fair; PM10, SO2, and CO are good. Pollution peaks around 8:00 PM (NO2: 37.6/100).
Tomorrow (17 July 2026): Air quality in Port Harcourt is fair. O3 decreases to good; all other pollutants stay as today. Pollution peaks around 10:00 PM (PM1: 34.7/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Port Harcourt's air quality reflects the flat Nigerian Niger Delta coastal position on the Bonny River, with vehicle traffic on surrounding roads and the oil refinery, gas flaring, and vehicle density corridor generating elevated PM2.5 and SO₂. The extraordinary Niger Delta's pervasive oil and gas infrastructure creates distinctive petroleum-related emissions, while the tropical wet season's convective rain provides periodic cleansing and Port Harcourt maintains Nigeria's most distinctively petroleum industrial coastal air quality environment throughout the year.
Today - 16 July | Pollution peaks at 20:00
AQI:
Fair
37.6/100
PM2.5 (fine particles):
Fair
31.2/100
PM10 (coarse particles):
Good
9.4/100
NO2 (nitrogen dioxide):
Fair
37.6/100
O3 (ozone):
Fair
22.6/100
SO2 (sulfur dioxide):
Good
10.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
22.0/100
PM1 (ultrafine particles):
Fair
36.6/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 22:00
AQI:
Fair
34.7/100
PM2.5 (fine particles):
Fair
29.8/100
PM10 (coarse particles):
Good
8.9/100
NO2 (nitrogen dioxide):
Fair
34.0/100
O3 (ozone):
Good
17.0/100
SO2 (sulfur dioxide):
Good
9.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
20.7/100
PM1 (ultrafine particles):
Fair
34.7/100
Frequently Asked Questions
Is air quality bad in Port Harcourt right now?
On 16 July 2026, overall air quality in Port Harcourt is fair. AQI is the main air quality indicator at 37.6/100. Pollution peaks around 8:00 PM (NO2: 37.6/100).
Will air quality be worse tomorrow in Port Harcourt?
On 17 July 2026, air quality conditions in Port Harcourt will be similar to today, with AQI forecast at fair at 34.7/100. Pollution peaks around 10:00 PM (PM1: 34.7/100).
When is air pollution at its worst in Port Harcourt?
In Port Harcourt, road traffic, heavy industry such as steel, cement, or petrochemical processing, together with shipbuilding and port operations are the main local sources, with conditions worsening when dry, windy weather picks up. These wind events can carry dust in from the surrounding arid landscape. Onshore breezes usually help clear the air, but pollution can build up when winds are light.
Are air quality levels in Port Harcourt based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
For long term forecasts and maps, see the Airmine app