NYC-WTC_000199812

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o ■D o c o CT co TABLE 11. SUMMARY OF RESULTS OF TRANSMISSION ELECTRON MICROSCOPY ANALYSES o' CD 00 FOR AIRBORNE ASBESTOS ■D o o 3. 03

45 WARREN STREET, NEW YORK CITY D o o c FIBERS AND BUNDLES LONGER THAN 5 MICROMETERS 3 CD

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-5-A1 Chrysotile 0.008 0.002 - 0.019 0.00155 24.2 1201 5 9/18/01 1201 0 Amphibole ND 0 - 0.005 0.00155 0 5th Floor 5 Total 0.008 0.002 - 0.019 0.00155 24.2 1201 Living Room (O to Sample 45WAR-5-A2 9/18/01 Chrysotile oun 0.004 - 0.029 0.00221 40.2 1170 6 Amphibole ND 0 - 0.007 0.00221 0 1170 0 5th Floor 6 Total 0.013 0.004 - 0.029 0.00221 40.2 1170 Dining Room Sample 45WAR-5-A3 5 Chrysotile 0.008 0.002 - 0.018 0.00153 24.4 1226 9/18/01 0 Amphibole ND 0 - 0.005 0.00153 0 1226 5th Floor Total 0.008 0.002 - 0.018 0.00153 24.4 1226 5 Bedroom Level

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

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