What is the air quality trend in Port Loko?

Over the past 8 days, Port Loko had an average AQI of 72 based on station measurements. The worst day was 2026-05-30 with AQI 92.

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
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

164h

PM2.5 Station

164h · 7 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-31	70	68–73	21.4 µg/m³	2h	7
2026-05-30	92	75–125	31.4 µg/m³	24h	7
2026-05-29	73	43–129	22.4 µg/m³	24h	7
2026-05-28	68	54–95	20.4 µg/m³	22h	7
2026-05-27	70	48–87	21.2 µg/m³	24h	7
2026-05-26	70	42–108	21.5 µg/m³	24h	7
2026-05-25	63	52–79	18.0 µg/m³	24h	7
2026-05-24	77	59–98	24.3 µg/m³	20h	7

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