NEW YORK—Second Avenue subway construction does not exceed accepted pollutant levels, said a report by Parsons Brinckerhoff, a contractor for the project.
The report studied two sections of Second Avenue, between 89 St. and 83 St., and 74 St. and 68 St., during a four-week period beginning Sept. 12, 2011. It assessed construction activity and measured particulate matter and gas pollutants. It notes levels of gas pollutants and one particulate matter exceeded reference levels at night and on six different days.
