VOC sampling locations table for Ground Zero area, Jan 2002

NYC 9/11 Public Portal Document

National Center for Environmental Assessment - EIMS Record Results Page 1 of2 US. EnvtFosimental Froteetfon Agency National Center for Environmental Assessment Recent Additions | Contact Us Search: \

EPA Home > Research & Development > NCEA Home > EIMS Record Results

EXPOSURE AND HUMAN HEALTH EVALUATION OF AIRBORNE POLLUTION FROM THE WORLD TRADE CENTER DISASTER (EXTERNAL REVIEW DRAFT)

Following the collapse of the World Trade Center towers on September 11,2001, New York State and Federal agencies initiated numerous air monitoring activities to better understand the ongoing impact of emissions from the disaster. This report focuses on these air measurement data, evaluating them in terms of what is typical for New York City or general urban background and interpreting it with regard to the potential for human health consequences. The report does not evaluate exposures possibly faced by rescue or clean-up workers and briefly discusses past and current indoor monitoring efforts.

The analysis in this report supports three general findings; 1) Persons exposed to the extremely high levels of ambient particulate matter and its components during the collapse of the World Trade Center towers and for several hours aftenvards were likely to be at risk for immediate acute (and possibly chronic) respiratory and other types (e.g., cardiovascular) of symptoms. 2) The first measurements of some of the contaminants were on September 14, while other contaminants were not measured until September 23. Available data suggest that the concentrations within and near Ground Zero were likely to be highest in the few days following September 11. Because there are only limited data on these critical few days, exposures and potential health impacts cannot be evaluated with certainty for this time period. 3) Except for exposures on September 11 and possibly during the next few days, persons in the surrounding L*hre unlikely to suffer short-term or long-term adverse health effects caused by exposure to elevations in ambient air concentrations of the contaminante evaluated in this report. These elevated concentrations were measured mostly within and near Ground Zero, and they lasted for one to three months after September 11. The monitoring data indicate that air concentrations decreased to background levels that are characteristic of pre-September 11 levels in the New York City metropolitan area by around January or February of 2002.

NOTICE: The 60-day comment period, which ended on February 25, has been extended. See Federal Register notice link below on a 30-day extension to this comment period.

Citation: 2002. EXPOSURE AND HUMAN HEALTH EVALUATION OF AIRBORNE POLLUTION FROM THE WORLD TRADE CENTER DISASTER (EXTERNAL REVIEW DRAFT). . 01 Jan 2002..

Contact Information: MATTHEW LORBER by phone at: 202-564-3243 by fax at: 202 565-0078 or by email at: [email protected] Downloads: © Exposure and Human Health Evaluation of Airborne Pollution from the World Trade Center Disaster (4.8 MB) @ Toxicological Effects of Fine Particulate Matter Derived from the Destruction of the World Trade Center @ Fact Sheet: Release of Reports Related to the World Trade Center Disaster

® EPA Response to September 11 (EPA's main web page on 9/11 activities)

@ Federal Register Notice - Availability of Draft Document and Reguest for Public Comment ® Federal Register Notice - Voluntary Data Call-In

• Federal Register Notice - Comment Period Extension

http.7/cfpub.cpa.gov/ncea/cfm/recordisplay.cfm?PrintVcrsion=True&dcid=54667 03/10/2003 NYC-WTC_000149067