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Exploring 9/11: The World Before and After – health effects of WTC dust


Dr. Paul Lioy is a professor and the Vice Chair of the Department of Environmental and Occupational Medicine at the Robert Wood Johnson Medical School. He is also the Director of Exposure Science at the Environmental and Occupational Health Sciences Institute at Rutgers University and author of the book, “Dust: The Inside Story of its Role in the September 11 Aftermath.” During the interview, Dr. Lioy summarizes the different phases of exposure in the days and weeks after 9/11, emphasizing the features and health effects of the World Trade Center dust.

 The “Exploring 9/11″ webcast series is exclusively produced for the 9/11 Memorial and Museum and is hosted by Clifford Chanin, senior program advisor for the 9/11 Memorial Museum. Check our website each month for a new installment in the series. If you missed previous webcasts, find it on The MEMO blog or visit

                                                                                                By 9/11 Memorial Staff