The city of Bakersfield, California is the most polluted city as of 2014. The second most polluted city in the state is Merced.
Western
western
Western Hemisphere
Most of the US is in the western hemisphere, with only a small portion of Alaska extending into the eastern hemisphere.
from my research the most polluted city in china is Linfen.
The largest metropolitan area in the western hemisphere is Mexico City with 21.2 million
Milwaukee is the most polluted city because of the industry.
Los Angeles Greater area is the most polluted city in the United States.
Western Hemisphere
The Northern Hemisphere has more land area than the Southern Hemisphere. The majority of Earth's landmass is located north of the equator.
No. Currently the most polluted place in the world is Mexico City