EPA air monitoring data table and public health summary, Oct

NYC 9/11 Public Portal Document In the News - Headlines wysiwyg://16/http://www.epa.gov/air/nyc/mon-k.htiT

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EPA Monitoring Site: Albany St. and West in Median Strip

Asbestos Air Monitoring Data infm'fnsli R./.u;=.= This table shows how much asbestos EPA measured in the air at this site, on the dates and times shown. Daily summaries of this data and how it compares to the About EPA level of concern for public health are provided on the EPA home page. Programs EPA can measure asbestos in several ways. For these data tables, EPA is providing Business measurements in terms of the number of asbestos structures found per square Opportuniucs j millimeter within our air monitors (structures can include single, overlapping, and bundles of asbestos fibers). The level of concern for asbestos is based on r - E Ki ciirsos ei) fcspanoi , continuous exposure to more than 70 structures per square millimeter for an extended period. Because cleanup efforts will reduce asbestos levels dramatically over the next several weeks, EPA does not expect people exposed to this amount of asbestos to have increased risks of health problems.

Date ! Time iMeasurement (structures/square milllmeterj 9/30/2001! 12:01 a.m. to 12:00 J 118,5' j p.m. i 9/29/2001 12.01 p.m. to 12:66 j 59.3 j a.m. t 12:01 a.m. to 12:00 74.1 9/29/2001 I i p.m. 9/28/2001 ! not detected p.m. .... 9/27/2001 i not detected _____ a.m. [ 9/27/2001 not detected p.m.

9/26/2001 12:61 p.m?to?l2[66 296.4* a.m. 12:01 a[m. to 12:66 n 9/26/2001 p.m. not detected

9/25/2001 i2:00 p.m. to 7:00 p.m. I not detected "9/24/266T' p2?6oarTt to’2i6o p.m7 f 29i " 59.2 M M [9/23/2661 12:66 pm? to aiOOam?

10:00 a.m. to 3:00 ... I 9/21/2001 I 120* p.m. _____ 9/20/2001 i no sample a.m. "9/19/2061" r&66 p[rn?to 2:66‘am? 1. not detected f 2:66 a.m. to 10:66 S

I of2 10/3/2001 1:01 PM

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