20 Most Polluted Cities in the World
| January 2, 2017
Riyadh, Saudi Arabia
Riyadh is not only the capital city of Saudi Arabia and the country’s largest city, it’s also the dirtiest. In addition to high industrial waste and heavy traffic, air quality is greatly affected by frequent sand storms in this desert metropolis.
In recent years, Saudi government agencies such as the Ministry of Health, the National Water Co. and the Higher Commission of Development of Riyadh have come together to try and find solutions to this environmental crisis.
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