NYC-WTC_000187697

NYC 9/11 Public Portal Document

DRAFT

This data was rec’d from DEP today - Ambient air monitoring

Agency Date Location N N above N above Maximum Comment samples 0.01 OSHA (fibers/cc) fibers/cc * PEL@ NYCDEP 9/15/01- Inside controlled 4 4 0 0.076 PCM Highest value sampled at 9/16/01 zone Greenwich and Park Place. No TEM given. Perimeter of 15 15 0 0.050 PCM Highest value sampled at Murray controlled zone between Church and Broadway. No TEM given 9/17/01- Perimeter of 10 9 0 0.062 PCM Highest value sampled at Liberty 9/18/01 controlled zone and Barclay. No TEM given Battery Park City 1 0 0 0.007 PCM Highest value sampled at West end of Warren St. No TEM given 9/19/01- Inside controlled 1 1 0 0.012 PCM Highest value sampled at River 9/20/01 zone Terrace and Vesey St. No TEM given Perimeter of 4 2 0 0.020 PCM Highest value sampled at Fulton controlled zone and Church. No TEM given Battery Park City 11 4 0 0.050 PCM Highest value sampled at North North End Ave and Park Place west. No TEM given Battery Park City 12 4 0 0.050 PCM Highest value sampled at West South St and Albany. No TEM given 9/20/01- Perimeter of 9 0 0 0.008 PCM Highest value sampled at Fulton 9/21/01 controlled zone and Church. No TEM given Battery Park City 6 2 0 0.02 PCM Highest value sampled at North Q North End Ave and River Terrace. No H TEM given k: I Battery Park City 6 1 0 0.014 PCM Highest value sampled at s o South Gateway Plaza and Park. No TEM given o I o o co Draft; 9/26/01,7:20 PM \EnvironmentalMonitoringUpdate_9_26b kO Page: 2 of 6

(JI

NYC-WTC_000187698