NYC-WTC_000199812

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o o co g o I “0 o c o TABLE 8. SUMMARY OF RESULTS OF TRANSMISSION ELECTRON MICROSCOPY ANALYSES CT o o' CD CD FOR AIRBORNE ASBESTOS ■0 CO o Ca3 3. 03 45 WARREN STREET, NEW YORK CITY o o o c PCM-EQUIVALENT FIBERS AND BUNDLES 3 CD (Length >5 micrometers; Width >0.25 micrometer; Aspect Ratio ^3:1)

Fiber Concentration, Fibers/mL Fibers Volume Number Sample Fiber per of Air of Description Type 95% Confidence Analytical Square Sampled Fibers Mean * Interval Sensitivity Millimeter Liters Counted

Sample 45WAR-2-A1 Chrysotile NSS 0 - 0.012 0.00210 6.5 1190 1 9/18/01 Amphibole ND 0 - 0.007 0.00210 0 1190 0 2nd Floor Total NSS 0 - 0.012 0.00210 6.5 1190 1 VO Living Room Sample 45WAR-2-A2 Chrysotile ND 0 - 0.007 0.00211 0 1176 0 9/18/01 Amphibole ND 0 - 0.007 0.00211 0 1176 0 2nd Floor Total ND 0 - 0.007 0.00211 0 1176 0 Living Room Sample 45WAR-2-A3 Chrysotile 0.010 0.003 - 0.023 0.00196 32.3 1269 5 9/18/01 Amphibole ND 0 - 0.006 0.00196 0 1269 0 2nd Floor Total 0.010 0.003 - 0.023 0.00196 32.3 1269 5 Master Bedroom

* No mean value is reported when fewer than 4 countable fibers were detected in the portion of sample examined o H ND No Countable Fibers Detected NSS Not Statistically Significant (1 to 3 countable fibers detected) I—i s o I—i o o I o o

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