I'm not sure but it is probably something to do with pollution from England and other countries in Europe
1. China 2. US 3. Mexico 4. Russia 5. India
In general the Eastern European countries such as Bulgaria and Romania are worst, especially for air pollution.
Asia does.
Both are as bad as each other but in a completely different way. 'Sound pollution' is called 'noise pollution'.
China is the country with the highest air pollution with 21.5% of the global total.
Chemicals such as pesticides cause water pollution from storm runoff.
co2
your moma niggha
The city of Los Angeles is generally considered to have America's worst air pollution problem. Most of California's metro areas have bad air pollution.
It is generally believed that the worst oil pollution in central Asia is in the Caspian Sea. The amount of oil spills in the region is quite alarming.
No, pollution did not decrease yet. Hopefully in the future it will though. I actually think that pollution has gotten worst over the years.