Air Quality Index (AQI) in Congo 🇨🇬

Live Air Quality Index (AQI) and PM2.5 Levels in Congo

Currently, the Air Quality Index (AQI) in Brazzaville, the capital of Congo, is measured at a score of 159. According to the US EPA health standard, this air quality rating is categorized as Unhealthy. The current atmosphere in Brazzaville is influenced by a PM2.5 (fine particulate matter) concentration of 66.4 µg/m³ and PM10 levels recorded at 69.4 µg/m³. Monitoring of gaseous pollutants shows Nitrogen Dioxide (NO2) at 8.2 µg/m³.

Beyond the primary urban hubs, atmospheric conditions and smog levels fluctuate across Congo based on industrial output, traffic density, and local weather patterns. Real-time pollution data and respiratory health alerts are also being actively monitored in cities like Pointe-Noire, Dolisie, Nkayi and Kayes. Tracking these air quality metrics is essential for residents nationwide to manage outdoor exposure and maintain respiratory safety during periods of increased particulate concentration.

Air Quality Snapshot: Congo Right Now

Across 5 monitored cities in Congo, live air quality currently ranges from a low of 78 AQI in Dolisie (the cleanest air right now) to a high of 159 AQI in Brazzaville (the most polluted). By US EPA health band, the nationwide distribution stands at 4 Moderate, 1 Unhealthy. The average fine-particulate (PM2.5) concentration across these cities is 36.1 µg/m³ — approximately 7.2 times the World Health Organization (WHO) annual air quality guideline of 5 µg/m³.

Congo Air Quality: Major Cities Index

Brazzaville
4
Pointe-Noire
2

Dolisie
2
Nkayi
2

Kayes
2

* Air Quality Index (AQI) data for Congo is calculated using the US EPA standard. Information is processed from multiple monitoring stations detecting PM2.5, PM10, and gaseous pollutants to ensure accuracy for respiratory health planning.

What Today's Readings Mean in Congo

The median reading across 5 monitored cities is 93 AQI. The national spread is 81 points, from 78 in Dolisie to 159 in Brazzaville. Average PM2.5 is 36.1 µg/m³ (7.2× the WHO annual guideline).

At least one monitored location is Unhealthy. Reduce prolonged outdoor exertion and check the city reading before planning exercise or travel.

See the complete AQI and pollutant reference scales

Health & Scientific Resources

→ How to read US EPA Air Quality Index before going outside → Understanding Air Quality Index levels and what they mean → When haze forms and what it does to air quality

Air Quality in Congo — FAQ

Common questions about AQI levels, pollutants, and data sources for Congo.

What is the current air quality in Congo?

Live AQI readings for 5 city(ies) across Congo are listed above on the US EPA 0-500 scale.

Where does Congo's AQI data come from?

Real-time readings come from ground-based monitoring stations operated by national environmental agencies in Congo, delivered via WeatherAPI.com and aggregated using the EPA AQI formula.

What is a healthy AQI value in Congo?

On the EPA scale used worldwide, 0-50 is Good, 51-100 is Moderate, 101-150 is Unhealthy for sensitive groups, 151-200 is Unhealthy, 201-300 is Very Unhealthy, and 301-500 is Hazardous. The WHO 24-hour PM2.5 guideline is 15 μg/m³.

Why do AQI readings vary between cities in Congo?

Air quality is highly local — major pollution sources (traffic, industry, dust, wildfires) cluster around cities, while wind direction and topography move them around. Comparing nearby readings on this page is the best way to see how conditions change across Congo.