New town creek Harlem, Astoria, Ridgewood, Summerfield Street are the five most polluted places. Landfills are mountains of garbage that produces an very awful smell. Water pollution has many causes,80% of water pollution enters the seas. Water related diseases can as many as 35 million people by 2020,disposing sewage is a major problem in the world. Air pollution is sometimes caused by burning money. Gym air is one of the worst types of air.BPA is polluting the air. Linfen, China is the most polluted place in the world. Residents say that they literally choke on coke dust.