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California rocket fuel

Neil C Sturchio, John R Hoaglund, Roy J Marroquin, Abelardo D Beloso, Linnea J Heraty, Sarah E Bortz, Thomas L Patterson
Analyses of stable isotope ratios of chlorine and oxygen in perchlorate can, in some cases, be used for mapping and source identification of groundwater perchlorate plumes. This is demonstrated here for large, intersecting perchlorate plumes in groundwater from a region having extensive groundwater perchlorate contamination and a large population dependent on groundwater resources. The region contains both synthetic perchlorate derived from rocket fuel manufacturing and testing activities and agricultural perchlorate derived predominantly from imported Chilean (Atacama) nitrate fertilizer, along with a likely component of indigenous natural background perchlorate from local wet and dry atmospheric deposition...
January 2012: Ground Water
John D Boice, Donald E Marano, Sarah S Cohen, Michael T Mumma, William J Blot, A Bertrand Brill, Jon P Fryzek, Brian E Henderson, Joseph K McLaughlin
OBJECTIVE: The objective of this study was to evaluate potential health risks associated with testing rocket engines. METHODS: A retrospective cohort mortality study was conducted of 8372 Rocketdyne workers employed 1948 to 1999 at the Santa Susana Field Laboratory (SSFL). Standardized mortality ratios (SMRs) and 95% confidence intervals (CIs) were calculated for all workers, including those employed at specific test areas where particular fuels, solvents, and chemicals were used...
October 2006: Journal of Occupational and Environmental Medicine
Yingxu Zhao, Anusha Krishnadasan, Nola Kennedy, Hal Morgenstern, Beate Ritz
BACKGROUND: A retrospective cohort study of workers employed at a California aerospace company between 1950 and 1993 was conducted; it examined cancer mortality from exposures to the rocket fuel hydrazine. METHODS: In this study, we employed a job exposure matrix (JEM) to assess exposures to other known or suspected carcinogens-including trichloroethylene (TCE), polycyclic aromatic hydrocarbons (PAHs), mineral oils, and benzene-on cancer mortality (1960-2001) and incidence (1988-2000) in 6,107 male workers...
October 2005: American Journal of Industrial Medicine
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