Air monitoring report, WTC site, Sep 2001

Z KAM CONSULTANTS z 35-40 36th Street o co Long Island City REPORT OF AIR MONITORING s o o New York. 11106 Tel: 718)729-1997 Fax: 718)729-1876 (PHASE CONTRAST MICROSCOPY ANALYSIS OF AIR FILTERS) CLIENT: DCAS DATE: 09/19/01 U c CT o' 00 PROJECT: CITY HEALTH BUILDING ADDRESS: 22 Reade Street. Manhattan, NY U O KJ 3. QJ R W CLIENT FLOW FLOW SAMPLE FIBERS FIBERS 0 E O TIME TIME O SAMPLE LOCATION BEF. AFTER VOLUME PER PER REMARKS U\BID# O S R IN OUT c ■ ID# (Ipm) (Ipm) (liters) FIELD CC P K 3 Q 01 3 6th Floor Loby By Elevators 14:31 15:31 15 15 900 <0.055 <0.01 Air Quality (Immed. TAT) A010920B-01 02 6th r loor South East Area 14:32 15:22 '1’5' 'is' W <0 055 <0.01 Air Quality (Immed. TAT) A010920B-02 03 6th Floor South West Area i4:33 15:33 IS 15 900 <0.055 <0.01 Air Quality (Immed. TAT) AOI 0920B-03 04 Sth Floor Lobby By Elevators i4:43 15.43 15 15 900 <0 055 < 0.01 Atr Quality (Immed. TAT) A010920B-04 05 5lh Floor South East Area 14:44 i'5:44' 15 15 900 <0.055 < 0.01 Air Quality (Immed. TAT) A0109208-05 06 Sth Floor South West Area i4:45 15.45 Is’ "i? 900 <0.055 <0.01 Air Quality (Immed. TAT) A010920B-06 07 4th Floor Lobby By Elevators 14:55 15:55 15 is 900 0.080 < 0.01 Air Quality (Immed, TAT) A010920B-07 08’ 4th Floor South East Area 14:56 15:56 IT 15 900 0.105 <001 Air Quality (Immed. TAT) A010920B-08 09 4th floor South West Ara 14:57 15:57 15 15 900 0 070 < 0.01 Air Quality (Immed. TAT) A010920B-09 1" 3rd Floor Lobby By Elevators i6:15 21.15 15 15 *900 ToTs? < 0 01 Air Quality (Immed TAT) AQ1Q920B-10 3rd Floor South E ast Area 16:16 15 'is' 0 060 < 0 01 Air Quality (Immed. TAT) A010920B-11 12 3rd Floor South West Area i6:17 i7J7 'is' 900 <0.055 Air Quality (Immed. TAT) A010920B-12 13 2nd Floor Lobby By Elevators 16:28 i7:28 16 is 900 <0,055 < 0.01 Air Quality (Immed. TAT) A010920B-13 14 2nd Floor South East Area i6:29 17:29 15 900 0.065 < 0.01 Air Quality (Immed. TAT) A010920B-14 is 2nd Floor South West Area i6:30 17:30 15 i^ 900*^ Tyos? ■iTo? Air Quality (Immed. TAT) A010920B-15 16 1 st Floor Lobby By East Elevator 16:41 17:41 15 15 90? <57^ < 0 01 Air Quality (Immed. TAT) A010920B-1S i7 1 st Floor Lobby By Main Entrance ieiif 17:42 TF 'is' IjocT <0.055 < 0.01 Air Quality (Immed. TAT) A010920B-17 is' 1 st Floor By West Elevator i6.43 17:43 15 iy 90? <0 055 < 0.01 Air Quality (Immed. TAT) A010920B-18 19 1 s! Floor By West South Area 16 44 17:44 15 iT 90? <0 055 < 0.01 Air Quality (Immed. TAT) A010920B-19 To FifcW Blank <0.055 A010920B-20 2i Field Blank <0 055 A010920B-21

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TYPE OF RESPIRATORS: 1 = HALF FACE, 2 = PAPR, 3 = TYPE C, 4 = OTHER (SPECIFY): TYPE OF WORK: 1= BLDG DECON, 2 = PLASTICIZING, 3 = GROSS REMOVAL, 4 = GLOVEBAG, 5 = CLEANING, 6 = ENCAPSULATION, 7 = BAGOUT, 8 = OTHER (SPECIFY): o SAMPLING TECHNICIAN: Z.B. Nowak DATE RECEIVED: 09/20/01 H 1"^ ROTAMETER: KAM- 04 . . DATE OF ANALYSIS: 09/20/01

S O Analyst: DeepaK Bajracharya DATE OF REPORT: 09/20/01 Lab Manager: f\ 6 U David Chen o The samples listed above are analyzed by Phase Contrast Microscopy (PCM) as per NIOSH 7400 Method -Issoe 3. The detection limit of this method is 7 fibers per square mm per filter ar. o KAM CONSULTANTS shall not be liable for information arising from samples that are not in its QA and QC program. I o The results relate only to the items calibrated or tested. The certificate of report shall not be reproduced without approval of the laboratory. The report must not be used by the client to claim endorsement by NVLAP or any agency of the U.S. Government. co co KYS-DOH ELAP #11273 AIHA # 100267 1