NYC-WTC_000208453

NYC 9/11 Public Portal Document

In the News - Headlines Page 1 of 1

ProtectfOA 1 jOl EPA Newsroom Home I Recent AddLtions 1 Contact Us Search; | AdyancedSearch I EPA Newsroom EPA Monitoring Site: Browse EPA Topics West St. (Center Island) Between Barclay & Murray St. 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 fibers found per square millimeter within our air monitors. The level of concern for asbestos is Jobs based on continuous exposure to more than 70 fibers per square millimeter Recursos en Espanol for an extended period. People exposed to any amount of asbestos up to this level are not expected to have increased risks of health problems. For iCiOS Date Time Measurement (fibers/square millimeter) 9^4^001 2 a.m. to 2 p.m. <14.8** 9^3^001 2 p.m. to 2 a.m.(9/24) 2£L6

** The technique used to analyze these samples cannot generally produce a reliable measurement below 14.8 fibers per square millimeter, which is well below the level of concern (70 fibers per square millimeter).

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

For more information about asbestos, see the fact sheet HHBB ^rom the Department of Health and Human Services’ Web site.

EPA Nefflsroorn | FAQs

This page originally created; Wednesday, September 26, 2001

EPA Home 1 Privacy and Security Notice | Contact Us Last Updated: 09/27/2001 08:44:16 URL: http://www.epa.gov/epahome/mon-q.htm

http://www.epa.gov/epahome/mon-q.htm 9/28/01

CITY_21MC100_004009966

NYC-WTC_000208453