Region Analytics
Western North Region
2 monitoring stations
Type to search
Dominant AQI
100.0%
Moderate
Ghana Std Exceedance
0.0%
all stations within standard
WHO Exceedance
1%
1 of 71 days above 15 µg/m³
Active Stations
2
reporting sensors
24-Hour Profile
Regional average PM₂.₅ by hour of day over the last 30 days. Shows when pollution peaks across all stations in the region.
Peak Hour
8 AM
20.1 µg/m³ avg
Cleanest Hour
4 AM
10.0 µg/m³ avg
30-Day Daily Trend
Daily average PM₂.₅ across all stations in the region over the past 30 days. Dashed lines mark the WHO guideline and Ghana Standard.
Monthly Pattern
12-month PM₂.₅ average for the region. Reveals seasonal variation and long-term trends across all monitoring stations.
Worst Month
Jan 2026
46.0 µg/m³
Best Month
Jun 2026
13.6 µg/m³
Day-of-Week Pattern
Regional average PM₂.₅ for each day of the week over the last 90 days. Reveals weekday vs. weekend pollution differences.
Worst Day
Mon
13.8 µg/m³ avg
Best Day
Sat
13.4 µg/m³ avg
90-Day AQI Calendar
Each square is one day coloured by regional average PM₂.₅. Hover for the date and reading.
Above WHO 15
1 days
1% of recorded days
Above Ghana Std 35
0 days
0% of recorded days
Data Coverage
71 / 90
79% of days recorded
AQI Band Distribution
Share of PM₂.₅ readings from all stations in each air quality band over the past 90 days.
Station Rankings
All monitoring stations in this region ranked by their 24-hour average PM₂.₅, highest to lowest.
Most Polluted
Bibiani AQ Station
Moderate
Cleanest Station
Sefwi Wiawso AQ Station
Moderate
Worst Pollution Days
The 10 days with the highest regional average PM₂.₅ over the past 90 days.