EPA air monitoring data table and public health summary, Oct

NYC 9/11 Public Portal Document In the News - Headlines wysiwyg://4/http://www.epa.gov/air/nyc/mon-e.htn-

10:00 a.m. to 3:00 120* 9/21/2001 p.m. 2:00 a.m. to 10:00 not detected ■

9/20/2001 a.m. o' 5:00 p.m. to 2:00 9/19/2001 not detected s^: .isaFSsi a.m. 2:00 a.m. to 10:00 not detected 5^' 9/19/2001 a.m. s'Swl ■. is 9/18/2001 8:00 a.m. to 8 p.m. not detected

9/16/2001 8:66 p.m. to 8:66 27.4 a.m '"/■Si, :SS

•S 8:00 p.m. to 8:00 9/16/2001 DUP 13.7 a.m. .sbSs”-, 8:00 p.m. to 8:00 9/15/2001 53.3** s^- a.m. 8:00 p.m. to 8:00 9/15/01 DUP 90** a.m. 8:00 p.m. to 8:00 9/14/2001 48** a.m. >■

* This reading exceeds the EPA benchmark. It may not indicate increased risk, 4 however, because these are "snapshots," rather than long-term exposure measurements. Weather and recovery activities at the World Trade Center can cause temporary variations in asbestos levels that affect these snapshots.

**Best estimate: no flow information available.

DUP - indicates that more than one sample was taken at a particular time; all values

w s' -5^ 'Is. are reported.

There may be gaps in daily readings because of relocated construction equipment Mr and variations in sampling locations.

For more information about asbestos, see the fact sheet Hani from the Department of Health and Human Services' Web site.

EPA Newsroom I FAQs This page originally created: Wednesday, September 26,2001 EPA Home I Privacy and Security Notice I Contact Us Last Updated: Tuesday, October 02, 2001 18:57:15 URL: http://www.epa.gov/air/nyc/mon-e.htm

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