NYC-WTC_000199864

NYC 9/11 Public Portal Document

WTC indoor Air Monitoring - Sampling and Analytical Procedures For Background and Pilot Clean up Studies Analytical Media 'Sampling Points- Sampling Method Proposed Sampling Vulnerability/Practicality Analytical Method Proposed Parameters

This is a micro vacuuming method. Three collocated samples will Settled Dust Carp'" ':. fabric furniture or Asbestos ASTM D 5755-95 ASTM D 5755-95 be collected from each location. Porous Soft drapf- ' in areas of activity surfaces (living ooms, family rooms) This is a micro vacuuming method. Three collocated samples will Lead ASTM E 1973-99 SW-846 6010B be collected from each location.

Asbestos ASTM D 6480-99 Wipe Samples ASTM D 6480-99 (wipe)

Lead ASTM E 1728 Wipe Samples SW-846 6010B H- ’ontal surfaces of Settled Dust tables rir counters and bare Non-porous Dioxins ASTM D 6661-01 Wipe Samples ASTM 6661-01/SW-846 8290 floors ceilings and walls in Hard arp?s of activity (living PAHs ASTM D 6661-01 Wipe Samples ASTM 6661-01/SW-846 8270C surfaces ro- -s, family rooms) Silica ASTM E 1728** Wipe Samples NIOSH 7500 (XRD)

MMVF ASTM D 6480-99 Samples will be combined with the asbestos sampling. EMSL MSD.O300

Air pump operated at lOL/min for 8 hours to achieve the COPC PCM NIOSH 7400 followed by TEM AHERA Asbestos NIOSH 7400 wkgroup detection limits method. Air pump operated at lOL/min for 8 hours to achieve the COPC Lead NIOSH 7300 SW-846 6010B wkgroup detection limits TBD Pending sample volume PAHs requirements and to account for Pilot clean-up study only SW-846 8270 Are?-- of known activity break through on the cassettes. Indoor Air (living ooms, family rooms) TBD Pending sample volume Pl ot clean-up study only. Availability of sample cassettes for Dioxins requirements and to account for SW-846 8290 dioxins analysis is questionable. Apparently the supply is low. break through on the cassettes. Air oump operated at 2.5L/min for 8 hours to achieve the COPC Silica NIOSH 7500 NIOSH 7500 (XRD) wkgroup detection limits Assumed that if behaves the same as asbestos, samples will be MMVF NIOSH 7400 EMSL MSD.0300 combined with the asbestos sampling.

NOTE; It is proposf- ' ’hat samples for total dust be collected with the samples collected for silica analysis

n H Silica will be colic ‘gd as a dust samples as is Lead. This was decided since pulverized silica would be particulate like and not fiber like as with asbestos and MMVF. re I to S o

I o o o o co DRAFT o cn to cn cn

NYC-WTC_000199864