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Cluster of Hodgkins lymphoma in residents near a non-operational petroleum refineryUCLA School of Medicine, Occupational Medicine, 2811 Wilshire Blvd. Suite 510, Santa Monica, CA 91343 USA Dahlgren{at}envirotoxicology.com
James Dahlgren Medical, 2811 Wilshire Blvd. Suite 510, Santa Monica, CA 91343 USA
James Dahlgren Medical, 2811 Wilshire Blvd. Suite 510, Santa Monica, CA 91343 USA This report examines the prevalence rate of Hodgkins disease in an American mid-west town located directly south of a non-operational oil refinery. The refinery has a history of benzene-containing gasoline leaks dating back to the early 1900s. Exposure data were assessed through the Toxic Release Inventory (TRI) data as published by the Environmental Protection Agency (EPA) and supplemented by exposure simulations using variations of residential exposure times and odour levels and the benzene content of the gasoline. Prevalence rates depended on the size of the population in question. The population size varied greatly between sources, with the more conservative and consistent estimates being reported by the local government and United States Census Bureau and the highest population figure being reported by the Agency for Toxic Substances Disease Registry. The prevalence of Hodgkins disease for the residents within 1 mile from the refinery was found to be elevated for every population figure, ranging from 72.11 cases per 100,000 using the ATSDRs population to 182.34 per 100,000, whereas the prevalence for Hodgkins disease in all the United States is only 22 cases of Hodgkins disease per 100,000 people. The prevalence value reported in this report should be given greater weight than what would have been calculated using data from the ATSDR. Because of its significantly increased value compared with the rest of the United States, it provides evidence of benzenes role as a causative agent in the etiology of Hodgkins disease.
Key Words: benzene cluster Hodgkins disease lymphoma petroleum refinery prevalence
Toxicology and Industrial Health, Vol. 24, No. 10,
683-692 (2008) |
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