Shanghai is quite more polluted than Mexico City right now, due to having air quality levels to 'severe' or 'hazardous' as of lately. Mexico City has had good to medium air quality levels during the last few months.
These values however, tend to vary throughout the year.
Mexico City is considered to be the most polluted, in terms of air pollution. This happens because the city lies at the bottom of a valley, surrounded by mountains. These mountains prevent strong winds from clearing up the smog, like a cook-pot effect. It however, is not as polluted as other cities in the world.
See related links for some photos.
It isn't. The most polluted city in Latin America is Port Au Prince, capital city of Haiti. After an earthquake (2010) that damaged more than 80% of the city, the environmental conditions are appalling: raw sewage running down the streets, corpses still buried under thousands of destroyed buildings, cholera-infected water sources and the ever-present danger of another earthquake make this the worst polluted, environmentally-degraded city in all the Americas.
Mexico City is by far the most polluted city in Mexico. Just imagine the pollution generated by 19 million people.
Mexico City is so polluted by air pollution. It is one of the fastest and largest cities. It has more than 3 million cars and trucks and 100's of Industrial plants.
Shanghai,China
from my research the most polluted city in china is Linfen.
Mexico City, Mexico
It is Mexico City; and it is in Mexico, the Country.
Polluted river
mexico city is the capital of mexico and one of the most polluted cities
No. Currently the most polluted place in the world is Mexico City
The city of Bakersfield, California is the most polluted city as of 2014. The second most polluted city in the state is Merced.
Since early industrialization in the 1940's
The capital city of Shanghai is also Shanghai. Shanghai is a province-level city in China and does not have a separate capital city like other provinces.
Raffles City Shanghai was created in 2003.
Nothing really. Mexico city is polluted because they drained the river out. Mexicio City lies into two valleys making the pollution stay in the valley leading up to alot of acid rain. So, I dont think we can really do anything about the pollution in Mexico City.