The Top TWELVE POLLUTED cities in the WORLD

LOS ANGELES - Los Angeles is the main source of the world’s smoke. It contributes the most pollution from America. An organization or and association found that the Los Angeles
Riverside city area had the worst climate in the years 2003 until 2005. It is continuing to grow along with the growth of human population. It is become better since than but it is the world’s worst polluted city.

2. PITTSBURGH area was the second most polluted city
3.BAKERSFIELD

4.CARLIFORNIA
5.BIRMINGHAM

6.ALASKA

7.DETROIT
8.CLEVELAND
9.VISALIA
10.CUNCINNATI

11. INDIANAPOLIS
12.St. LOUIS

"Nobody is surprised that LA has an air pollution problem," said Janice Nolen, the association's assistant vice president for national policy and advocacy. "The problems there are one of the reasons we have the Clean Air Act. But it is important for folks to know that there has been some improvement."(This paragraph is straight copied, because it is a quote from Janice Nolen)

These cities are producing heat levels by the sunlight. Also it produces lots of CO2 from power plants, cars, and many other sources. These sources made pollution which is a mixture of tiny solid liquid particles in the air.

These air pollution, high levels of CO2 can can cause heart disease, lung cancer and asthma. Elder people throughout the region that are having excersice could easily be effected by these pollution, the association said that majority people have asthma.

More than half of America's citizens live in nations that have unhealthy levels of CO2, pollution that damages the ozone layer. Even though there appeared that the less pollution in many countries than the years before now.

Bibliography:
NOAKI SCHWARTZ, date accessed 21 13 1/4/07Webpage is from yahoo news:
http://news.yahoo.com/s/ap/20070501/ap_on_sc/polluted_cities