These are the most polluted cities in Latin America

80% of the cities exceeded the recommended pollution limit.

the World Health Organization (WHO) compared air quality nearly 3,000 cities in 103 countries. The study Urban Ambient Air Pollution Global Database says 80 percent of people living in an urban area breathe air too polluted.

for a period of five years, wHO studied the airborne different cities particles . As indicators PM 10 and PM 2.5 measurements were used, which measure respirable particles by humans. These units indicate the number and size of particles suspended in the air in micrograms particles on cubic meter (ug / m3). Large particles (PM 10) and small (PM2.5) can be very harmful to health.

Although Latin America was not one of the regions most contaminated, such as Middle East, Asia and Africa, many of its cities exceeded limit 20u / m3 that recommended by wHO. Chile, Brazil and Mexico were the cities with the worst air quality in the region

These are the ten most polluted cities in Latin America.

1. Santa Gertrudes Brazil (95 u / m3 of PM10)
2. Lima Peru (88 u / m3 of PM10)
3. Monterrey Mexico (86 u / m3 of PM10)
4. La Paz, Bolivia (82 u / m3 of PM10)
5. Toluca, Mexico (80 u / m3 of PM10)
6. San Salvador, El Salvador (77 u / m3 of PM10)
7. Rancagua and Coyhaique, both in Chile (75 u / m3 of PM10)
8. Santo Domingo, Ecuador and Cubatao, Brazil (69 u / m3 of PM10)
9. Andacoyo, Chile (67 u / m3 of PM10)
10. Santiago and Father de las Casas, both in Chile (64 u / m3 of PM10)

WHO considers cars, factories and power stations energy as main pollutants in urban areas.

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