NYC-WTC_000220383

NYC 9/11 Public Portal Document

JLC 'NVIRONMENTAL CONSULTANT^ NC. 200 Pc wenue South, Suite 1001, New York, New Yo,_ ,0003 -■1 Phone:(212)420-8119 Fax:(212)420-6092 WSA Management Project No. 01-2171 ELAP Lab Code: 11029 Analyte: LEAD 100 Ring Road West NIOSH and AIHA Lab Code: 100273 Date Collected: 10/26/01 Garden City, NY 11530 NVLAP Lab Gpde: 101953 Date Received: 10/30/01 Date Analyzed: 10/30/01 Site: 80 John Street, New York, NY Lab Batch #: 0110L2167

SUMMARY OF ANALYTICAL RESULTS - AIR

Sample # Lab# Description/ Location Volume (liter) Results (ug/m3) Client's Sample #

t 1 Ambient/Apartment 17C/ South East 240 <16.7 18443 Bedroom/ On East Side 01 2 Ambient/ Apartment 17C/ North West 240 <16.7 18444 Room/ On North Side 02 3 Ambient/11 th Floor/ Hallway Elevator/ 240 <16.7 18445 Hallway on South Side of Hallway 03 4 Ambient/ llth Floor/ Hallway Elevator/ 240 <16.7 18446 Hallway on North Side of Hallway 04 5 Ambient/11th Floor/ Apartment 118/ West 240 <16.7 18447 Side Bedroom/ North West Near Closet 05

Sample Analysis by: Atomis Absorption Speclrometiy (AAS) with an air-acetylene burner head (Flame) and background correction (AAS-Flame).

Method of Sample Preparation and Analysis Collected By: Mohammed Khan All Samples were prepared and analyzed in accordance with NIOSH Method 7082, February 15, 1984. Analyzed By: Tamara Metelkina

Gulam Machhiwala Laboratory Director

Minimum Dectection Limit = <4.0 ug/m3 OSHA Permissible Exposure Limit (PEL) for General Industry is 50 ug/m3.

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NYC-WTC_000220383