Areas of high lead exposure risk remain throughout America’s largest and richest city, a Reuters exploration of blood testing data found. In the first examination of its kind, reporters obtained New York childhood blood testing data down to the census tract level – neighborhood areas with some 4,000 residents apiece. In densely populated New York, a tract often covers several square blocks.While poisoning has nearly been eliminated in many neighborhoods, Reuters identified 69 New York City census tracts where at least 10 percent of small children screened over an 11-year period, from 2005 to 2015, had elevated lead levels. The risk areas spanned New York neighborhoods and demographic groups.
