Parent-backed inquiry finds toxic caulk in 6 public schools

Parent-backed testing of caulk at city public schools found high levels of a cancer-causing toxin, officials said.

Testing of caulk from six schools around the city last month found levels of polychlorinated biphenyls, or PCBs, as high as 325,000 parts per million, according to New York Communities for Change. The federal limit is 50 parts per million.

"What we're trying to do is find out all the facts," said Latoya Ross, whose two kids attend Public School 332.

The parents found elevated PCB levels at PS 16 in Staten Island, MS 53 in Queens, PS 149 in Manhattan and PS 15, PS 56 and PS 332 in Brooklyn.