NYC-WTC_000153034

NYC 9/11 Public Portal Document

noted that the New York City Department of Education collected daily air samples at Stuyvesant and other nearby schools from October 4, 2001, to end of June 2002, and found that “the overwhelming majority of daily sampling has resulted in no structures detected.”

DRAFT EXCERPTS - FOR REVIEW & DISCUSSION PURPOSES ONLY

DRJLFT EXCERPTS - FOR REVIEW & DISCUSSION PURPOSES ONLY We contacted the president of a consulting firm hired by the Stuyvesant High School Parent’s Association to review environmental test results for Stuyvesant High School. He told us that ambient asbestos testing at the school was conducted in accordance with AHERA standards and elevated levels of airborne asbestos were not found. However, he said that elevated levels of particulate matter were recorded that could have come from the debris off-loading operation or diesel fuel emissions from the trucks transporting the debris. Also, he told us that lead was found in the school’s ventilation system, but it was not determined whether it came from the WTC fallout or from another source.

Asbestos Levels During Demolition and Debris Removal

EPA and NYCDEP conducted extensive ambient air monitoring for asbestos around Ground Zero and Lower Manhattan after September 11, 2001. This sampling was conducted at up to 60 sites and provides some indication of the impact of the demolition and removal operations on air quality in Lower Manhattan. Excluding the month of September 2001 in which 30 exceedances of the AHERA standard of 70 s/mm2 were recorded, these sites for the most part recorded asbestos concentrations below 70 s/mm2. There were seven exceedances of the AHERA standard from October 2001 through May 2002. Two were near Stuyvesant High School. The seven readings above 70 s/mm2 are presented in the following table.

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NYC-WTC_000153046