Who can tell me what are the most polluted cities in the world?

Question

Hello,I wonder if anyone can tell me what are the most polluted cities in the world?Can you list the names of 20 or perhaps 30 of them?Thank you very much,I'm doing a research on environmental problems.

Answer 1

From Forbes:

"New York - U.S. cities continue to pollute at a great rate. Still, to put this in perspective, they are all better than Chinese cities that hold the title of the world's worst. The Chinese wrested that title from Mexico City--since all ten in China are more polluted than Mexico's capital."

Ten Most Polluted U.S. Cities (Ozone Rated Only)
1. Los Angeles (Long Beach, Calif., Riverside, Calif.)
2. Bakersfield, Calif.
3. Fresno-Madera, Calif.
4. Visalia-Porterville, Calif.
5. Merced, Calif.
6. Houston (Baytown, Huntsville, Tex.)
7. Sacramento (Arden, Calif., Arcade, Calif., Truckee, Nev.)
8. Dallas/Forth Worth
9. New York (Newark, N.J., Bridgeport, Conn.)
10. Philadelphia (Camden, N.J., Vineland, N.J.)

Most Polluted Cities In China (And The World)
1. Linfen, Shanxi Province
2. Yangquan, Shanxi Province
3. Datong, Shanxi Province
4. Shizuishan, Ningxia Hui
Autonomous Region
5. Sanmanxia, Henan Province
6. Jincheng, Gansu Province
7. Shijiazhuang, Hebei Province
8. Xianyang, Shanxi Province
9. Zhuzhou, Hunan Province
10. Luoyang, Henan Province"

Hope this helps!

Answer 2

The bigger the city the more pollution that will be produced. U need to remove CO2 from your list as it is not a pollutant. All CO2 that is produced by us the world is already taken care of by mother nature . The plants proceed the CO2 and turn it into oxygen in a process called photosynthesis . That should take care4 of over 50% of your problem.

Answer 3

Depends on what kind of pollution you're talking about. Here's a large database:

http://www.nationmaster.com/cat/env-environment

Answer 4

Here is a good list of "places". It shows that cities are usually not the worst places.