What is the air quality trend in Port Harcourt?

Over the past 16 days, Port Harcourt had an average AQI of 81 based on station measurements. The worst day was 2026-05-30 with AQI 106.

How is Port Harcourt air quality measured?

Air quality in Port Harcourt is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Port Harcourt, Nigeria

Name: Port Harcourt Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Port Harcourt, Nigeria.

Current AQI
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

180h

PM2.5 Station

180h · 5 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-06-06	91	45–168	33.4 µg/m³	12h	4
2026-06-05	68	52–98	20.2 µg/m³	11h	3
2026-06-04	83	52–146	26.9 µg/m³	17h	4
2026-06-03	81	38–151	26.1 µg/m³	10h	3
2026-06-02	84	54–155	27.8 µg/m³	18h	4
2026-06-01	72	33–104	22.6 µg/m³	8h	2
2026-05-30	106	78–139	37.3 µg/m³	3h	3
2026-05-29	91	49–133	30.7 µg/m³	8h	4
2026-05-28	71	46–97	21.9 µg/m³	5h	3
2026-05-27	65	28–110	20.0 µg/m³	7h	4
2026-05-26	85	29–145	28.0 µg/m³	12h	3
2026-05-25	103	60–171	38.8 µg/m³	16h	3
2026-05-24	72	42–111	22.1 µg/m³	9h	3
2026-05-23	82	38–161	28.0 µg/m³	16h	2
2026-05-22	88	16–176	33.0 µg/m³	15h	3
2026-05-21	69	39–167	22.3 µg/m³	13h	3

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