What is the air quality in Piedras Negras?

Piedras Negras, Mexico has an annual US AQI of 53 (Reasonable) and average PM2.5 of 10.3 µg/m³, ranking #1032 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Piedras Negras?

December is typically the cleanest month (AQI 46) and May the most polluted (AQI 62).

Where does Piedras Negras's air quality data come from?

PM2.5: 1998–2026 (monitors 2018–2026, satellite 1998–2018; 2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Piedras Negras, Mexico — Air Quality & Clean City Guide 2026

Piedras Negras Air Quality Data

Global rank	City	Continent	AQI	PM2.5
1032	Piedras Negras, Mexico	North America	AQI 53	PM2.5 10.3 µg/m³