NYC-WTC_000195841

NYC 9/11 Public Portal Document

I. Tntroductlon/Summary

Glomar Corp., Asbestos Testing and Consulting, was contracted by Newmark & Company, Real Estate, Inc., to perform PCM Air Quality Testing on various floors of the building at 40 Worth Street, New York, NY.

Testing was performed to determine the levels of fibers that were present in the building as a result of the massive dust created by the claps of the World Trade Center Buildings on September 11, 2001.

Testing took place on September 25, 2001.

Glomar Corp. Technician, Mr, Sean Murray, was the on-site Air ’Monitoring Technician.

All air samples were collected by Glomar Corp and analyzed by Scientific Labs, New York, NY, a New York State approved Environmental Testing Laboratory. All samples were analyzed utilizing Phase Contrast Microscopy (PCM) and had fiber counts of well below 0.01 fibers per cubic centimeters (f/cc).

II. Air Monitoring Criteria, Methods and Analysis

■Air monitoring complied with Part 56 of Title 12 Sub-Part 56-17, Air Sampling Monitoring and Analysis of the Official Compilation of Codes, Rules and Regulations of the State of New York, Sub­ Part 56-17. Air Sampling Monitoring and Analysis requirements establishes schedules and methods that were followed by Glomar personnel. Analysis of Air Monitoring samples shall use (at a minimum) Phase Contrast Microscopy (PCM) or Transmission Electron Microscopy (TEM) using standards administered by the National Institute for Occupational Safety & Health (NIOSH) Method 7400 (PCM) and Method 7402 (TEM). Also followed is the New York State Department of Health Environmental Laboratory Approval Program (ELAP,) Item's 236-273. PCM analysis gives an index of Airborne fibers in the work place and TEM analysis gives an index of Asbestos Airborne Fibers in the work place.

S«« Appendix A fox Ais Sample Locations end Analysis

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NYC-WTC_000195843