E-cigarettes as a source of toxic and potentially carcinogenic metals.

E-cigarettes as a source of toxic and potentially carcinogenic metals.
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DOI:
10.1016/j.envres.2016.09.026
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发表时间:
2017-01
影响因子:
8.3
通讯作者:
Rule, Ana Maria
Rule, Ana Maria
中科院分区:
环境科学与生态学2区
文献类型:
--
作者:
Hess, Catherine Ann;Olmedo, Pablo;Navas-Acien, Ana;Goessler, Walter;Cohen, Joanna E.;Rule, Ana Maria

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The popularity of electronic cigarette devices is growing worldwide. The health impact of e-cigarette use, however, remains unclear. E-cigarettes are marketed as a safer alternative to cigarettes. The aim of this research was the characterization and quantification of toxic metal concentrations in five, nationally popular brands of cig-a-like e-cigarettes. We analyzed the cartomizer liquid in 10 cartomizer refills for each of five brands by Inductively Coupled Plasma Mass Spectrometry (ICP-MS). All of the tested metals (cadmium, chromium, lead, manganese and nickel) were found in the e-liquids analyzed. Across all analyzed brands, mean (SD) concentrations ranged from 3.20 (0.454) to 1960 (1540) μg/L for lead, 53.9 (6.95) to 2110 (5220) μg/L for chromium and 115 (49.4) to 22600 (24400) μg/L for nickel. Manganese concentrations ranged from 28.7 (9.79) to 6919 (12200) μg/L. We found marked variability in nickel and chromium concentration within and between brands, which may come from nichrome heating elements. Additional research is needed to evaluate whether e-cigarettes represent a relevant exposure pathway for toxic metals in users.
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