13 Moscow, Russia
Moscow is situated on the banks of the Moskva River, which flows for just over 500 km through the East European Plain in central Russia. Its Mercer Health and Sanitation Index Score is 43.4. Please review your decision if you are going to travel to Moscow because the air pollution may put you at a high risk for diseases. A large number of cars and factories contribute to this pollution and the overall health of the residents in Moscow. Moscow’s air pollution has taken a toll on its residents and the environment.