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      Environmental health hazards of e-cigarettes and their components: Oxidants and copper in e-cigarette aerosols.

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          Abstract

          To narrow the gap in our understanding of potential oxidative properties associated with Electronic Nicotine Delivery Systems (ENDS) i.e. e-cigarettes, we employed semi-quantitative methods to detect oxidant reactivity in disposable components of ENDS/e-cigarettes (batteries and cartomizers) using a fluorescein indicator. These components exhibit oxidants/reactive oxygen species reactivity similar to used conventional cigarette filters. Oxidants/reactive oxygen species reactivity in e-cigarette aerosols was also similar to oxidant reactivity in cigarette smoke. A cascade particle impactor allowed sieving of a range of particle size distributions between 0.450 and 2.02 μm in aerosols from an e-cigarette. Copper, being among these particles, is 6.1 times higher per puff than reported previously for conventional cigarette smoke. The detection of a potentially cytotoxic metal as well as oxidants from e-cigarette and its components raises concern regarding the safety of e-cigarettes use and the disposal of e-cigarette waste products into the environment.

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          Author and article information

          Journal
          Environ. Pollut.
          Environmental pollution (Barking, Essex : 1987)
          1873-6424
          0269-7491
          Mar 2015
          : 198
          Affiliations
          [1 ] Department of Environmental Medicine, University of Rochester Medical Center, Rochester, NY 14642, USA.
          [2 ] Department of Biochemistry and Biophysics, University of Rochester Medical Center, Rochester, NY 14642, USA.
          [3 ] Department of Public Health Sciences, University of Rochester Medical Center, Rochester, NY 14642, USA.
          [4 ] Mechanical Engineering Department, Rochester Institute of Technology, Rochester, NY 14623, USA.
          [5 ] Department of Environmental Medicine, University of Rochester Medical Center, Rochester, NY 14642, USA; Department of Public Health Sciences, University of Rochester Medical Center, Rochester, NY 14642, USA. Electronic address: irfan_rahman@urmc.rochester.edu.
          Article
          S0269-7491(14)00533-8 NIHMS652270
          10.1016/j.envpol.2014.12.033
          25577651
          Copyright © 2014 Elsevier Ltd. All rights reserved.

          Copper, ENDS, EPR, Electronic cigarettes, Oxidants, ROS

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