From the NY Post:
More than 800 World Trade Center rescue and recovery workers have died since 9/11 -- and cancer has killed at least 270 of those heroes, new data show.
The figures also show that 33 WTC responders committed suicide.
State researchers have tallied 817 deaths of workers and volunteers who toiled at toxic Ground Zero or the Fresh Kills landfill, where rubble was sifted.
"It's still a huge undercount," a source told The Post, adding that cases were still being collected.
The state Health Department's WTC Responder Fatalities Investigation has so far reviewed death and medical records in 642 cases and found 479 responders who succumbed to illness, including cancers.
Another 149 suffered "traumatic deaths" in such incidents as drug overdoses, car crashes, fires and assaults -- including 27 who died in the line of duty.
Another 12 died while serving in the military in Iraq and Afghanistan.
The number of deaths documented has soared since last September, when researchers listed 664 fatalities and confirmed 224, including 94 cancer cases. The rise is largely due to city agencies and WTC medical programs sharing more records, officials said.