Air Quality in Waterloo, Sierra Leone

Heavy Rain
24.1°C · 92.6% humidity
24.1°
Feels 24.1°
58
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
8 stations

Nearby Monitoring Stations

AQI Forecast
24 5am
24
24
58 8am
48
41
37 11am
33
30
29 2pm
27
26
26 5pm
25
25
25 8pm
24
25
25 11pm
25
24
24 2am
24
24
AD 728×90

Air Quality Index Trend

46h · 11 stn

Current PM2.5 concentration in Waterloo is 1.0× the WHO 24-hour guideline of 15 µg/m³.

92.6%
Humidity
21.2 km/h
Wind SSE
1013.2 hPa
Pressure
2.2
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
58
15.5 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Waterloo?

Temperature & Precipitation

PM2.5 Trend

46h · 11 stations
PM2.515.5 µg/m³ ✓ WHO
Moderate
PM1013.7 µg/m³
Good
UV INDEX2.2
Moderate
AD 300×250
Station readings (8 stations within 25 km)
15.5
Median
16.73
Average
8.74
Low
29.96
High
PM2.5 µg/m³ · Model: 6.15 · Bias: -9.4
Both models agree Avg diff: 1.2°C

Where are air quality stations near Waterloo?

43
Allen Town Police Station
11.2 km PM2.5: 10.3 µg/m³
61
Lalaba Town Police Station
13.7 km PM2.5: 17.0 µg/m³
89
Shell Police Station
20.1 km PM2.5: 30.0 µg/m³
68
Ross Road Hospital
22.7 km PM2.5: 20.1 µg/m³
43
Mountain Cut
23.3 km PM2.5: 10.4 µg/m³
53
Cottage Hospital
23.4 km PM2.5: 13.1 µg/m³
36
SLBC
23.6 km PM2.5: 8.7 µg/m³
41
Freetown City Council
24.7 km PM2.5: 9.8 µg/m³
77
Connaught Hospital
24.8 km PM2.5: 24.3 µg/m³
33
34 Hospital
25.1 km PM2.5: 7.9 µg/m³

What cities are near Waterloo?

70 Freetown 49 Goderich 26 Port Loko 26 Lunsar 30 Mile 91 26 Njala 27 Forécariah 26 Makeni 27 Bumpe 30 Conakry
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-06-10T08:22 UTC.