What is the air quality trend in Port Loko?

Over the past 8 days, Port Loko had an average AQI of 66 based on station measurements. The worst day was 2026-10-31 with AQI 80.

How is Port Loko air quality measured?

Air quality in Port Loko 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 Loko, Sierra Leone

Name: Port Loko 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 Loko, Sierra Leone.

Current AQI
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

165h

PM2.5 Station

165h · 7 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-11-01	61	54–68	16.9 µg/m³	4h	7
2026-10-31	80	57–114	25.5 µg/m³	24h	7
2026-10-30	76	60–88	24.1 µg/m³	24h	7
2026-10-29	64	53–85	18.1 µg/m³	24h	7
2026-10-28	64	52–78	18.0 µg/m³	24h	7
2026-10-27	58	43–70	15.7 µg/m³	24h	7
2026-10-26	58	51–66	15.6 µg/m³	24h	7
2026-10-25	71	59–98	21.4 µg/m³	17h	7

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