Common areas and HVAC cleaning completion status, March 2003

NYC 9/11 Public Portal Document

Pl 'J ' http://www.epa.gov/wtc/factsheets/clean_test_results.htm

Mfwwy ''A JU EPA Response to September 11 Recent Additions | Contact Us | Print Version Search: Response to 9-11 > Fact Sheets > WTC Residential Testing Results

Dust Cleanup Request Counts Follow Up WTC Residential Testing Results Map The work of cleaning and testing residences in lower Manhattan (south of Canal Cleanup Results Street) is underway. Depending upon the assistance requested, EPA is arranging Fact Sheets / Scopes for licensed contractors to clean and/or test residential units (fact sheet) for Frequently Asked asbestos in air. There is no charge for this service. Requests for assistance will be Questions accepted until December 28, 2002 via the Web or by calling EPA's toll-free World Trade Center hotline (1-877-796-5471). Ads & Flyers Asbestos in air test results for individual residences are provided only to EPA Press Releases residents of the affected unit. Aggregate test results are provided here. The Pictures locations of residences that have cleared or not cleared EPA's testing criteria will The EPA Experience be identified by block.

Monitoring EPA is committed to setting the most stringent standards that can be technically Summaries achieved when testing residences for asbestos in air. We have set an initial New York City Area risk-based clearance level for asbestos of 0.0009 fibers per cubic centimeter Pentagon (f/cc). This means that if 10,000 people are exposed to this level of asbestos for Monitoring Data 30 years, there may be one more case of cancerthan if the group had not been Asbestos in Air exposed at all. Asbestos in Bulk Testing for asbestos (fact sheet) in air calls for moving a measured volume of air Dust across a filter, then examining that filter under a microscope equipped with a grid Benzene in Air Chromium in Air and counting the number of asbestos fibers found. Problems arise when too many dust and fiber particles are captured by the filter. The filter becomes overloaded Dioxin in Air and technicians examining it under the microscope cannot separate out or identify Drinking Water Lead in Air individual fibers. Residences where this occurs are listed as "Not Determined." In a residence where only testing was conducted, EPA recommends that the home Metals in Air be cleaned and re-tested. In a residence where both cleaning and testing were Particulate Matter 2.5 done, EPA will attempt to identify potential sources and will then re-clean and Particulate Matter 10 re-test the home. PCBs in Air Test results below reflect analytical results received through January 9th. Polycyclic Aromatic During the initial stage of cleaning and testing, results will be updated on a weekly Hydrocarbons basis. Once data flow is established, this table will update automatically as test VOCs: Volatile Organic reults are entered. Compounds Interactive Maps Test Only Other Monitoring Data________ Quadrant (Map) Total Requests Cleared Not Cleared Not Determined A 277 40 1 3 New York State DEC New York City DEP B 285 50 0 2 0 New Jersey DEP 49 3 2 C 268 OSHA D 411 185 0 3 Total 1241 324 4 10

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