NYC-WTC_000209473

NYC 9/11 Public Portal Document

ATTACHMENT 2

WTC Indoor Air Monitoring - Sampling and Analytical Procedures Analytical Media Sampling Points Sampling Method Proposed Sampling Vulnerability/Practicality Analytical Method Proposed Parameters

Carpets, fabric furniture or Settled drapery in areas of activity This is a micro vacuuming method. Three collocated samples will Dust Asbestos ASTM D 5755-95 ASTM D 5755-95 (living rooms, family be collected from each location. Porous rooms) Soft surfaces This is a micro vacuuming method. Three collocated samples will Lead ASTM E 1973-99 SW-846 601 OB be collected from each location.

Horizontal surfaces of tables or counters and Asbestos ASTM D 6480-99 Wipe Samples ASTM D 6480-99 (wipe) bare floors, ceilings and walls in areas of activitv (living rooms, family rooms) Lead ASTM E 1728 Wipe Samples SW-846 601 OB Settled Dust Non-porou Dioxins ASTM D 6661-01 Wipe Samples ASTM 6661-01/SW-846 8290 s Hard surfaces PAHs ASTM D 6661-01 Wipe Samples ASTM 6661-01/SW-846 8270C

Silica ASTM E 1728** Wipe Samples NIOSH 7500 (XRD)

MMVF ASTM D 6480-99 Samples will be combined with the asbestos sampling. EMSL MSD.0300

Areas of known activity Air pump operated at lOUmin for 8 hours to achieve the COPC PCM NIOSH 7400 followed by TEM AHERA (living rooms, family A! |0 wkgroup detection limits method. ----------- rooms)---------- i -Afr-'purJp derated at lOL/min for 8 hours to achieve the COPC Leai NIOSI SW-846 601 OB wkgroup detection limits __ TBu-Pei PAHs requirements and to account for Pilot clean-up study only SW-846 8270 break through on the cassettes. indoor Air TBD Pending sample volume Pilot 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. n Air pump operated at 2.5L/min for 8 hours to achieve the COPC Silica NIOSH 7500 NIOSH 7500 (XRD) wkgroup detection limits Assumed that it behaves the same as asbestos, samples will be MMVF NIOSH 7400 EMSL MSD.0300 s combined with the asbestos sampling. n o NOTE: All samples (cassettes and wipes) will be preweighed by the laboratory or supplier prior to sample collection. After sample collection and upon receipt of the samples by the laboratory, the laboratory will weigh o I the sample wipe or cassette prior to performing the analysis. This may change depending upon the availability of preweighed materials. May collect samples for total dust

** Silica will be collected 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.

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NYC-WTC_000209479