Air Quality Index (AQI) in Peru 🇵🇪

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

Currently, the Air Quality Index (AQI) in Lima, the capital of Peru, is measured at a score of 63. According to the US EPA health standard, this air quality rating is categorized as Moderate. The current atmosphere in Lima is influenced by a PM2.5 (fine particulate matter) concentration of 15.8 µg/m³ and PM10 levels recorded at 50.9 µg/m³. Monitoring of gaseous pollutants shows Nitrogen Dioxide (NO2) at 19.0 µg/m³.

Beyond the primary urban hubs, atmospheric conditions and smog levels fluctuate across Peru 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 Callao, Arequipa, Trujillo, Chiclayo and Piura. 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: Peru Right Now

Across 34 monitored cities in Peru, live air quality currently ranges from a low of 6 AQI in Cajamarca (the cleanest air right now) to a high of 89 AQI in Puerto Maldonado (the most polluted). By US EPA health band, the nationwide distribution stands at 13 Good, 21 Moderate. The average fine-particulate (PM2.5) concentration across these cities is 12.1 µg/m³ — approximately 2.4 times the World Health Organization (WHO) annual air quality guideline of 5 µg/m³.

Peru Air Quality: Major Cities Index

Pollution Monitor & AQI Forecast: Peru Regions

Ciudad Satelite
2
Chilca
1

Selva Alegre
2
Abancay
1

* Air Quality Index (AQI) data for Peru 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 Peru

The median reading across 34 monitored cities is 54.5 AQI. The national spread is 83 points, from 6 in Cajamarca to 89 in Puerto Maldonado. Average PM2.5 is 12.1 µg/m³ (2.4× the WHO annual guideline).

At least one monitored location is in the Moderate range. People unusually sensitive to air pollution may want to reduce prolonged outdoor exertion there.

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 Peru — FAQ

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

What is the current air quality in Peru?

Live AQI readings for 34 city(ies) across Peru are listed above on the US EPA 0-500 scale.

Where does Peru's AQI data come from?

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

What is a healthy AQI value in Peru?

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 Peru?

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 Peru.