Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9674056 | Journal of Hazardous Materials | 2005 | 7 Pages |
Abstract
Concentrations of tetra- through octa-chlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) were determined in exterior window films from Manhattan and Brooklyn in New York City (NYC), USA, 6 weeks after the World Trade Center (WTC) attacks of 11 September 2001. High concentrations of the 2,3,7,8-substituted congeners (P2378CDD/Fs) were observed, at levels up to 6600Â pg-TEQÂ gâ1 nearest the WTC site. An equilibrium partitioning model was developed to reconstruct total gas + particle-phase atmospheric concentrations of P2378CDD/Fs at each site. The reconstructed atmospheric and window film concentrations were subsequently used in a preliminary human health risk assessment to estimate the potential cancer and non-cancer risks posed to residents of lower Manhattan from these contaminants over the 6 week exposure period between the WTC attacks and sampling dates. Residents of lower Manhattan appear to have a slightly elevated cancer risk (up to 1.6% increase over background) and increased P2378CDD/F body burden (up to 8.0% increase over background) because of above-background exposure to high concentrations of P2378CDD/Fs produced from the WTC attacks during the short period between 11 September 2001, and window film sampling 6 weeks later.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
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Authors
Sierra Rayne,