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| | World Trade Center |
 | | The fuming World Trade Center debris pile was a chemical factory that exhaled pollutants in particularly dangerous forms that could penetrate deep into the lungs of workers at Ground Zero, says a new study by UC Davis air-quality experts. |
 | | When the trade center towers burned and collapsed, tons of concrete, glass, furniture, carpets, insulation, computers and paper were reduced to enormous, oxygen-poor debris piles that slowly burned until Dec. 19, 2001. |
 | | At the three sites closest to Ground Zero where samples for the study were collected, the levels of sulfur, which indicates the presence of diesel pollution, were much higher than at uptown sites. |
| delta.ucdavis.edu /WTC.htm (2245 words) |
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