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EPA air monitoring data table and public health summary, Oct

Machine-extracted title · confidence 90%

Web page displaying asbestos structure measurements per square millimeter from air monitors with daily summaries and health concern levels.

NYC-WTC_000141087–000141088

Folder label: “EPA WEB

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NYC 9/11 Public Portal Document

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“ 1 In‘the News - Headlines Page 1 of2

US. CttHmnwfltal Agency EPA Newsroom Home I Recent Additions | Contact Us Search: ( Ajjvanced Search I EPA Newsroom EPA Monitoring Site: Browse EPA Topics Albany St. and West in Median Strip Laws & Regulations Asbestos Air Monitoring Data Where You Live Information Sources This table shows how much asbestos EPA measured in the air at this site, on the Educational Resources 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 Business EPA can measure asbestos in several ways. For these data tables, EPA is Opportunities providing measurements in terms of the number of asbestos structures found per square millimeter within our air monitors (structures can include single, overlapping, Jobs and bundles of asbestos fibers). The level of concern for asbestos is based on Recursos en Espahol continuous exposure to more than 70 structures per square millimeter for an extended period. Because cleanup efforts will reduce asbestos levels .^lOS dramatically over the next several weeks, EPA does not expect people exposed to this amount of asbestos to have increased risks of health problems.

Measurement (structures/square Date Time millimeter) 12:00 a.m. to 12:00 10/03/2001 not detected p.m 12:00 p.m. to 12:00 10/02/2001 14.8 a.m. 12:00 a.m. to 12:00 10/02/2001 not detected p.m 12:00 p.m. to 12:00 10/01/2001 not detected a.m. 12:01 a.m. to 12:00 9/30/2001 118.5* p.m. 12:01 p.m. to 12:00 9/29/2001 59.3 a.m. 12:01 a.m. to 12:00 9/29/2001 74.1* p.m. 12:01 a.m. to 12:00 9/28/2001 not detected p.m. 12:01 p.m. to 12:00 9/27/2001 not detected a.m. 12:01 a.m. to 12:00 9/27/2001 not detected p.m. 12:01 p.m. to 12:00 296.4* 9/26/2001 a.m. 12:01 a.m. to 12:00 9/26/2001 not detected p.m.

i http://www.epa.gov/air/nyc/mon-k.htm 10/5/2001 NYC-WTC_000141087

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NYC-WTC_000141087Source: NYC Law Department, mirrored locally

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