Journal
ENVIRONMENTAL POLLUTION
Volume 198, Issue -, Pages 100-107Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2014.12.033
Keywords
Electronic cigarettes; ENDS; ROS; Oxidants; Copper; EPR
Categories
Funding
- National Institute of Drug Abuse at the National Institutes of Health [R21DA036057, 2R01HL085613]
- National Cancer Institute at the National Institutes of Health [R01CA132950, R01CA152093]
- University of Rochester CTSI [5UL1RR024160]
- NIEHS Environmental Health Science Center [P30-ES01247]
- [T32 HL066988]
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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 mu m 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. (C) 2014 Elsevier Ltd. All rights reserved.
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