Memo on retention of WTC clean-up records, September 2003

NYC 9/11 Public Portal Document Thursday 28 of Feb 2002 Mayor Öffice. -3718 595 4544 schools Tpage ?e f Lead dust inschools in Lower Manhattan Concern has been voiced about elevated levels oflead dust in lowei Manhattan schools "'às a consequence of tlie WTC disasier: Specific concerns about elevated dust lead levels ! on floors and Windowsills at PS:89 and Stuyesant HiS have been expressed. •Lead exposure from deterioratng interior ead-based paint that is common in older buildings remains the most significant contributor to childhoód lead poisòning. Lead .. based paint that is in poor condition génerates lead dust and settles/on floors and other horizontal sunfaces in biildngs. Young,children (partictlarly 1 andi2 year -olds) are at highest risk for lead poisoning since they crav! on the foor and regulärly enzage in : hand-to-mouth activitys Since P$ 89 and Stuyvesant H.S. are new buildings, they do not contain interior lead based paint and itis not likely that lead hazards will be generated rom inside the schools. ."a.7 442 Potențiar sourees oflead' from the collapse ofithe IWTC towers mnclu de lead-acid batteries tharwere tised for back up poier and sone decorative suifaces oii the exterior croivn of the tojvers aisme thercoapse the U.S Divironmental Plolection Agency (ÉPA) has been collecting. "environmental samples to mnitor contaminant levels in the enviromnen: Båsed on the -sampling ondlieted around the WIC if does not appear that the disaster has made a significant contribution to idcreasing the amount of lead in the environment a It is not uncommon to find elevated levels oflead in urban soil due to past use of leaded gasoline and ledd paint Esterior șoil and dust may be tracked into a building by nórmal : foot traffie: Airboine dust mlaykalso be blown in hrough a window and sttleron toai windowsillor desksor other horizontal surface The Board oßEducation has been condücting regulat lead dust wipe testing in loiver Mantattan schools to determine if lead is being tracked in or blown into the schools. Apprõsimately 400samples have been collected from floors and windowsilis at PS 89 and Stit rgesant HEStand approximately 3%, of the samples have shown elevated levels of lead in the dust EPA has estab These standard Гacceptablę lend-dust lead hazard standards for child-occupied facilities gerams perisquare foot (ig/A?) for floors and 250 ng/fỉ foi windowsill •‹: Iune tests indi cate thatsomé Jead dust is being tracked in or blown into the schools; ... which is not unconimon in an urban environment. Based on the available data, the risks of exposure fo' léad hazards for children at PS 89 and Stuyvesant H.Si ar low. However the schools should be regularly cleaned to prevent further accumulation of lead dust. taseci NYC-WTC 000144561