Chain of Custody Form Instructions for WTC Building Sampling

NYC 9/11 Public Portal Document

Sample Portlandite Gypsum Mica Halite Building Particle Size Quartz Cristobalite Tridymite Calcite Volume (PB/m’l) Number Fraction (PB/m’) (PB/m’) (Pfl/m’) Pfl/m’) (PB/m’) (PB/m*) PB/m’) (L)

31 PM10 1371 31 PM10 1401 3J 31 PM4 828 31 FM4 819 31 PM4 852 31 PM4 867 5J

32 PM100 1318 3J 32 F»M100 1336 32 PM100 1351 32 PM100 1316 32 PM10 1312 3J

32 PM10 1337 32 PM10 1317 32 PM10 1312 32 PM4 808 5J

32 PM4 805 5J

32 FM4 776 32 PM4 828 32 PM4 826 32 PM25 1311 3J 32 PM2^ 1418 32 PM2.5 1315

33 PM100 1338 33 PM10 1338 33 PM4 831 33 PM4 838 33 PM2^ 1338

34 PM100 1307 34 PM100 1315 34 PM100 1309 34 PM100 1232 34 PM10 1318 R R R R R R R R 34 PM10 1327 34 PM10 1238

34 PM4 816 34 PM4 848 34 PM4 830 34 PM4 782 34 PM4 770

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