9/11 firefighters more likely to get cancer: study

The capital of USA, New York City  has been polluted  rapidly. Firefighters exposed to the World Trade Center attacks are more likely to get cancer, while 9/11 rescue workers still suffer high illness rates generally, according to studies published Friday.

In a 10th anniversary edition of medical journal The Lancet, scientists said however that death rates among emergency staff and civilians who survived the disaster were lower than those of the wider New York City population.

"Our findings show a substantial burden of persistent physical and mental disorders in rescue and recovery workers who rushed to the site of the WTC and laboured there for weeks and months 10 years ago," the study said.

But World Trade Center-exposed rescue workers and civilians have had lower death rates than New York City general population, a third study by researchers at the New York City Department of Health and Mental Hygiene.