Roger Klein
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Dr Roger A. Klein, MA, PhD, MB, BChir, FRSC is a medic and chemist (retired) Cambridge UK and Affiliated Research Faculty, Christian Regenhard Center for Emergency Response Studies (RaCERS), John Jay College of Criminal Justice, City University New York USA. Email:

PFAS waste disposal in the fire service – Part 1
Cement kiln incineration offers an environmentally sustainable solution. Class B AFFF (aqueous film-forming foams) contain fluorochemicals now generically known as PFAS (perfluoroalkyl substances). Disposal of large volumes of PFAS-contaminated liquid waste remains a major problem, as well as potentially a…
Reducing PFAS levels in firefighters by blood and plasma donation
Historically firefighters have been occupationally exposed to perfluoroalkyl substances such as PFOS, PFHxS and PFOA in AFFF firefighting foams. Many have subsequently been found to have high blood levels of these PFAS molecules. A recent landmark study1 has shown that…

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