NYC 9/11 Public Portal Document
Chapter 1
Introduction
Purpose
The September 11, 2001, terrorist attacks on this country and their environmental
aftermath were unprecedented. Unfortunately, further terrorist attacks on this
country remain likely and a response to such a tragedy could be needed again.
Accordingly, the Office of Inspector General (OIG) initiated this evaluation, in
consultation with the Environmental Protection Agency (EPA) Deputy
Administrator, to evaluate EPA’s response to the collapse of the World Trade
Center (WTC) towers on September 11. The objectives of our evaluation were to
answer the following:
• Did the available monitoring data and analyses of that data support EPA’s
major public communications regarding air quality and associated health risks
resulting from the collapse of the WTC towers?
• Were EPA actions and decisions in regard to evaluating, mitigating, and
controlling risks to human health from exposure to indoor air pollutants in the
WTC area consistent with applicable statutes, regulations, policies, guidance,
and practice?
• Were asbestos demolition and renovation work practice standards followed
during WTC cleanup and recovery operations and, if not, why not?
• To what extent were EPA and government communications regarding air
quality and associated health risks: (a) received by the public; (b) understood
by the public; and (c) effective in getting people to take the desired actions to
reduce their potential health risks?
• What additional actions, if any, should EPA take to improve its response and
recovery efforts in the WTC area related to ambient and indoor air quality?
• Should EPA revise its preparation and contingency planning for dealing with
air pollution resulting from future catastrophes?
Background
On the morning of Tuesday, September 11, 2001, terrorists flew two hijacked
commercial jets into the WTC towers. Both towers collapsed within 2 hours of
impact, killing almost 2,800 people, including 343 firefighters and 60 New York
City and Port Authority police officers. In addition to the devastating loss of life.
1 Report No. 2003-P-00012
NYC-WTC_000145356
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