EPA air monitoring data table and public health summary, Oct

NYC 9/11 Public Portal Document

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US. enwFonmenfa/ Profectfon Aftncy I EPA Newsroom Home I Recent Additions | Contact Us Search; j Advanced Search I EPA Newsroom EPA Monitoring Site: Browse EPA Topics West End of Liberty St. at South End Ave. 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 Jobs square millimeter within our air monitors (structures can include single, overlapping, and bundles of asbestos fibers). The level of concern for asbestos is based on Recursos en Espanol continuous exposure to more than 70 structures per square millimeter for an extended period. Because cleanup efforts will reduce asbestos levels I .5 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) 12:01 a.m. to 12:00 10/03/2001 not detected p.m 12:01. p.m. to 12:00 10/02/2001 not detected a.m. 12:01 a.m. to 12:00 10/02/2001 14,8 p.m 12:01 p'm.'to 12:00 10/01/2001 not detected a.m. 12:01 a.m. to 12:00 9/30/2001 not detected p.m. 12:01. p.m. to 12:00 9/29/2001 133.3* a.m. 12:01 a.m. to 12:00 9/29/2001 92.2* p.m. 12:0T a^m". to 12:00 9/28/2001 not detected p.m. 12:01 p.m. to 12:00 9/27/2001 29.64 a.m. 12:01 a.m. to 12:00 9/27/2001 not detected p.m. 12:01 p.m. to 12:00 9/26/2001 29.64 a.m. 12:01 a.m. to 12:00 9/26/2001 14.8 p.m.

http://WWW. epa. gov/air/nyc/mon-e.htm 10/5/2001 NYC-WTC_000141103