Memo re: environmental services, 1 North End Ave, Oct 2001

NYC 9/11 Public Portal Document

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October 22, 2001

Mr, Elliot Zuckerman Cushman & Wakefield a/a/f Mercantile Exchange One North End Avenue New York, New York 10282

Re: One North End Avenue Ambient Project # 211338

Dear Mr. Zuckernien:

The following is a summary of the Inc. Performed on September Igs indoor environmental quality survey Group, ', 2001 at the above referenced llocati sampling for airborne metals, on. TheAssu, y included carbon dioxide, carbon monoxide, humidity, polynuclear aromatic temperature, relative hydrocarbons and airborne asbestos structures by TEM. Analysis of all indoor readings for carbon dioxide and carbon indoor readings were below OSHA, monoxide revealed that all ACGIH, ASHRAE and other guidelines and/or regulations_ recommended industry

The indoor temperature readings ranged from 67.9"F' to 71.3°F. The readings ranged from 31.2% to 38,8%, indoor relative humidity All indoor relative humidity with the conditions described readings were consistent in the ASHRAE 55-1992 thermal ideal indoor conditions. One comfort standard as well as indoor temperature reading 55-1992 thermal standard for slightly below the ASI~I2AE fall/winter months (69°F - 76°F). Four (4) air samples were collected from various locations analyzed by transmission electron on floors 2, 3, 7 and l5 and the analysis indicated that microscopy (TEM) for asbestos airborne asbestos levels inside and structures. The results of of testing were less than the outside the building at the time analytical sensitivity of the EPA standard of 70 instrument, structures/mm2 as well as other recommended which is well below the regulations. industry guidelines and/or

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