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United States Environmental Protection Agency
EPA Response to September 11
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Polycyclic Aromatic Hydrocarbon Chemicals in Air

Alphabetized Text Version of Map

Download the USEPA Polycyclic Aromatic Hydrocarbons Dataset

Polycyclic aromatic hydrocarbon chemicals (PAHs) are produced by burning jet fuel and are also found in emissions from generators and motor vehicles. The WTC collapse, fires, and later cleanup efforts are expected to have released these substances into the air. Since they have some potential to cause health problems, EPA has closely monitored the air at the WTC site itself and in the surrounding area.

As of April 2002, none of the 15 PAHs monitored were detected in any air samples.

EPA continues to monitor and analyze these substances in the air surrounding the WTC. We do not, however, expect future results to be substantially different from the samples listed here. Subsequent sample results, however, will continue to be made available here.

This map shows the locations of EPA PAH monitoring stations in Manhattan. Select a station to view PAH monitoring data.

Select a location to view data

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To obtain information from this 'hot map', move the cursor over a site (indicated by the dots on the map); the site's name will display next to the cursor. To see the site's report, click the left mouse button on the dot. Alternately, move the cursor over a name on the list at the right of the map; a red pushpin will display, indicating the location of the site. Click on the site's name to get its report. If a site's name is not visible, click on the up/down arrow buttons to scroll the list.
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