SmogRank / World / Africa / Ghana

Most polluted cities in Ghana

5 measured cities, last 7 days; 5 above the WHO 24-hour guideline. Worst: Ashaiman at 22.7 µg/m³, #106 in the world.

Upper EastUpper WestBonoNorthernVoltaWesternCentralGreater Accra: 4 measured citiesAshantiEastern#5 Medina Estates: 16.0 µg/m³#3 Accra: 16.4 µg/m³#4 Adenta: 16.4 µg/m³#2 Tema: 20.9 µg/m³#1 Ashaiman: 22.7 µg/m³
Each dot is a measured city, coloured by its PM2.5; tap a dot to open the city, or a region to zoom in.
← Ashaiman 22.7 WHO 24-hour guideline
Every measured city in Ghana, one column each, worst on the left and cleanest on the right. Point at it to read a city; tap to open it.
  1. 1Ashaimanlow-cost sensorsGreater Accra 22.7
  2. 2Temalow-cost sensorsGreater Accra 20.9
  3. 3Accralow-cost sensorsGreater Accra 16.4
  4. 4Adentalow-cost sensorsGreater Accra 16.4
  5. 5Medina Estateslow-cost sensorsGreater Accra 16.0
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

Estimated: cities without a monitor

Ghana cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.

City7-day estimateBand
Kumasi≈ 5 µg/m³Good
Tamale≈ 7 µg/m³Good
Takoradi≈ 11 µg/m³Moderate
Sekondi≈ 11 µg/m³Moderate
Cape Coast≈ 9 µg/m³Good
Atsiaman≈ 10 µg/m³Moderate
Obuase≈ 5 µg/m³Good
Koforidua≈ 7 µg/m³Good
Sekondi-Takoradi≈ 11 µg/m³Moderate
Ho≈ 6 µg/m³Good
Amanfrom≈ 10 µg/m³Moderate
Twifu Praso≈ 5 µg/m³Good
Japekrom≈ 5 µg/m³Good
Tema New Town≈ 10 µg/m³Moderate
Sunyani≈ 4 µg/m³Good
Hohoe≈ 5 µg/m³Good
Jirapa≈ 7 µg/m³Good
Kasoa≈ 10 µg/m³Moderate
Gbawe≈ 10 µg/m³Moderate
Techiman≈ 4 µg/m³Good
Bolgatanga≈ 9 µg/m³Moderate
Wa≈ 7 µg/m³Good
Mandela≈ 10 µg/m³Moderate
Bawku≈ 12 µg/m³Moderate
Winneba≈ 9 µg/m³Moderate
Ejura≈ 5 µg/m³Good
Berekum≈ 4 µg/m³Good
Aflao≈ 10 µg/m³Moderate
Yendi≈ 6 µg/m³Good
Buduburam≈ 10 µg/m³Moderate
Akim Oda≈ 5 µg/m³Good
Swedru≈ 7 µg/m³Good
Kintampo≈ 5 µg/m³Good
Mampong≈ 5 µg/m³Good
Suhum≈ 7 µg/m³Good
Tafo≈ 5 µg/m³Good
Tarkwa≈ 7 µg/m³Good
Lashibi≈ 10 µg/m³Moderate
Nsawam≈ 7 µg/m³Good
Dome≈ 10 µg/m³Moderate

Use this board

SmogRank, most polluted cities in Ghana, PM2.5, last 7 days to 2 Oct 2026, 01:00 UTC, smogrank.com/gh?w=7d.

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Updated 2026-10-02 01:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.