Public health risk from toxic dumping unknown, expert says

An environmental consultant says the amount of pesticides, metals and other contaminants illegally discarded at a Brentwood park isn't high enough to be dangerous to the public. But a North Carolina toxicologist, reading the consultant's report for Newsday, has criticized the sampling methodology, saying it can't reveal the true level of contaminants at Roberto Clemente Park. June 20, 2014 (Credit: Chuck Fadley)