Uruguay is recognized as one of South America’s cleanest and greenest countries, with relatively low levels of industrial pollution and widespread use of renewable energy. On most days, air quality across the country is in the “Good” range, though Montevideo and some industrial zones can experience temporary increases in AQI.
Thanks to its wind and hydropower-driven energy system, Uruguay has a much cleaner air profile than many neighboring countries.
Montevideo, the capital and largest city, has the highest concentration of vehicles and industry. While average AQI remains low, traffic emissions and port activity can occasionally reduce air quality, especially near the city center and harbor.
Air pollution in Uruguay comes mainly from urban and industrial sources:
Uruguay is a global leader in renewable energy, with more than 90% of its electricity generated from wind, solar, and hydropower. This drastically reduces fossil-fuel-related air pollution.
The government enforces air quality monitoring in Montevideo and other regions, while promoting public transport upgrades, stricter industrial standards, and cleaner fuels for shipping.
In the past, Uruguay’s dependence on oil imports contributed to higher urban pollution. However, in the 2000s and 2010s, Uruguay rapidly transitioned to renewable energy, improving both climate performance and air quality.
Looking ahead, Uruguay’s continued investment in electric mobility and green shipping initiatives will help further reduce AQI fluctuations in Montevideo.
Uruguay is unique in South America for its high share of renewables, relatively small population, and proactive environmental policies. Visitors often notice the fresh Atlantic air, particularly along the coast, where winds help keep pollution levels low.