DATE: 09/21/01
WORLD TRADE CENTER AIR MONITORING TABLE Fiber Asbestos
Duration Sample PCM PCM Conc. Conc.
Date Ambient/ Sampled Volume LOD LOQ PCM TEM
Sampled Sample ID Location Sampled Indoor (Mins) (liters) (f/mm2) (f/cc) (f/cc) (struc./mm2)
09/16/01 LABI#1 MURRAY & GREENWICH ST. AMBIENT 45 675 0.013
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NYC-WTC_000148423
09/16/01 LABI#2 WASHINGTON & PARK PL AMBIENT 450 0.038
09/16/01 302/001 VESEY ST BETWEEN CHURCH & W.BROADWAY (HOT ZONE) AMBIENT 40 600 0.024
09/16/01 302/002 FULTON & CHURCH ST. AMBIENT 40 600 0.030
09/16/01 302/003 FULTON BET WEEN CHURCH & BROADWAY AMBIENT 40 600 0.030
09/16/01 10916/A207001 CITY HALL, 2ND FL, OUTSIDE JULIE MENDIK'S OFFICE INDOOR 120 1800 0.022
NYC 9/11 Public Portal Document
09/16/01 10916/A207002 CITY HALL, IST FL - BLUE ROOM INDOOR 120 1800 0.011
09/17/01 LAB3#1 100 GOLD STREET - LOBBY AMBIENT 60 900 0.006 0.006
09/17/01 LAB3#2 100 GOLD STREET - 9TH FL AMBIENT 60 900 0.006 0.004
09/17/01 302/001 FULTON & CHURCH ST. AMBIENT 40 600 0.027
09/17/01 10917/A307001 BROADWAY & LIBERTY ST. AMBIENT 30 450 0.062
09/17/01 LAB3#001 MURRAY & GREENWICH ST. AMBIENT 45 675 0.012
09/17/01 LAB1#1 MURRAY & CHURCH ST. AMBIENT 45 675 0.013
09/17/01 10917/A100001 22 RIVER TERRACE, LOBBY INDOOR 120 1800 0.004
09/17/01 10917/A100002 22 RIVER TERRACE, 9TH FL. INDOOR 120 1800 0.002 <LOQ
09/17/01 10917/A307003 41 RIVER TERRACE (TRIBECA POINT) - LOBBY INDOOR 90 1350 0.002 <LOQ
09/17/01 10917/A307004 41 RIVER TERRACE (TRIBECA POINT) -PHB INDOOR 90 1350 0.003
09/17/01 10917/A307002 400 CHAMBERS STREET (TRIBECA POINT) - LOBBY INDOOR 120 1800 0.014
09/17/01 302/002 400 CHAMBERS STREET, 9TH FLOOR INDOOR 120 1800 0.007
09/17/01 302/003 WEST END OF WARREN STREET AMBIENT 45 675 0.007 0.007
09/17/01 302/001 FULTON & CHURCH ST. AMBIENT 45 675 0.017
09/18/01 10918/A307002 225 RECTOR PL - 11TH FLOOR INDOOR 90 1350 0.044
09/18/01 302/002 225 RECTOR PL - LOBBY INDOOR 90 1350 0.030
09/18/01 LAB3#1 MURRAY & GREENWICH ST. AMBIENT 30 450 0.011
09/18/01 10918/A307001 WARREN ST & NORTH END AVENUE AMBIENT 45 675 0.008
09/18/01 10918/A003001 MURRAY & CHURCH ST. AMBIENT 35 525 0.018
09/18/01 10918/A207001 WEST ST & VESEY ST. AMBIENT 40 600 0.034
09/18/01 10918/A207002 LIBERTY & CHURCH ST. AMBIENT 30 450 0.021
09/19/01 10919/A003001 MURRAY & CHURCH ST. AMBIENT 45 675 0.007 0.014
09/19/01 10919/A100001 MURRAY & GREENWICH ST. AMBIENT 40 600 0.008 <LOQ
09/19/01 302/001 FULTON & CHURCH ST. AMBIENT 45 675 0.007 0.020
09/19/01 10919/A307001 WARREN ST & NORTH END AVENUE AMBIENT 45 675 0.007 <LOQ
09/19/01 LAB 3 #2 WARREN ST & WEST ST AMBIENT 30 450 0.01 0.030
09/19/01 LAB 3 #3 WEST ST & ALBANY AMBIENT 30 450 0.01 0.050
09/19/01 LAB 3 #4 GATEWAY PLAZA PARK AVENUE AMBIENT 30 450 0.01 0.010
09/19/01 LAB 3 #5 NORTH END & VESEY ST. AMBIENT 30 450 0.01 0.010
METHODS: 1. PCM : NIOSH 7400 METHOD, "A" COUNTING RULE. 2. TEM : EPA 40 CFR PART 763 FINAL RULE (AHERA) Page 2 of 3
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