#353 - EPA: Dioxin Does Cause Cancer In Humans
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چکیده
An explosion at a Hoffman-LaRoche chemical plant in Seveso, Italy, in 1976 sent a cloud of the herbicide 2,4,5-T over the surrounding countryside, contaminating several thousand people. Dioxin is created as an unwanted by-product during the manufacture of 2,4,5-T, so the Seveso population was exposed to dioxin. For years, optimists have been pointing to Seveso saying, "Dioxin doesn't cause cancer in humans--look at Seveso." Now a new study in the journal EPIDEMIOLOGY reveals that people exposed to dioxin during the Seveso explosion have begun to exhibit excessive numbers of cancers.[1]
منابع مشابه
No evidence of dioxin cancer threshold.
The U.S. Environmental Protection Agency (EPA) has developed an estimate of the human cancer risk from dioxin, using the standard low-dose linear extrapolation approach. This estimate has been controversial because of concern that it may overestimate the cancer risk. An alternative approach has been published and was presented to the U.S. EPA Science Advisory Board's Dioxin Review Panel in Nove...
متن کاملATTACHMENT M Selection of a Cancer Slope Factor for 2,3,7,8-Tetrachlorodibenzo-p-dioxin In its Human Health Risk Assessment (HHRA), EPA has evaluated potential cancer risks from exposures to dioxins, furans, and “dioxin-like” PCB congeners, all converted to toxic equivalents
In its Human Health Risk Assessment (HHRA), EPA has evaluated potential cancer risks from exposures to dioxins, furans, and “dioxin-like” PCB congeners, all converted to toxic equivalents (TEQs) of 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), using a cancer slope factor (CSF) of 150,000 (mg/kg-day) for TCDD. In addition, in its uncertainty analyses, the HHRA notes that EPA’s 2000 draft Dioxin Re...
متن کامل#479 - Nationwide Dioxin Campaign
New evidence of dioxin's ability to cause cancer in humans has come to light[1] just as environmental justice activists across the U.S. are planning a major campaign to attack dioxin at its sources. The campaign is holding a 3-day strategy session in Baton Rouge, Louisiana, March 1517. (All citizen activists are welcome; to register, phone Jim Warren in North Carolina: (919) 774-9566; THE LAST ...
متن کامل&epa Dioxin Reassessment an Sab Review of the Office of Research and Development's Reassessment of Dioxin
The SAB Dioxin Reassessment Review Subcommittee (DRRS) (of the SAB Executive Committee) met on November 1 and 2, 2000 to review revised sections of the EPA draft document Exposure and Human Health Reassessment of2,3,7,8-Tetrachlorodibenzo-p-Dioxin (TCDD) and Related Compounds (in addition, the DRRS met via public teleconference on January 23 and on April 23, 200 I, to discuss several issues tha...
متن کاملRanking Cancer Risks of Organic Hazardous Air Pollutants in the United States
BACKGROUND In this study we compared cancer risks from organic hazardous air pollutants (HAPs) based on total personal exposure summed across different microenvironments and exposure pathways. METHODS We developed distributions of personal exposure concentrations using field monitoring and modeling data for inhalation and, where relevant, ingestion pathways. We calculated risks for a nonoccup...
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تاریخ انتشار 2002