"Now people come, and they say we are the most polluted town in the world."

Today this river is one of the most polluted in the world.

That's why the area is still considered one of the most polluted communities in Europe.

Middle and lower parts of river are the most polluted ones.

The border region is one of the most polluted in either country.

As such, it is one of the most polluted rivers in the country.

We have some of the most polluted air in the country.

Atlanta is also one of the most polluted cities in the country.

The city is one of the most polluted on earth.

Some of its major cities are among the most polluted in the world.