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Toxic metals leaking from e-cigarettes into vapour

Discussion in 'E-News' started by -V-, Feb 23, 2018.

  1. -V-
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    -V- Thread Starter Administrator Staff Member

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    Toxic metals linked with brain damage are 'leaking from e-cigarettes into vapour', experts have found
    A study discovered that five metals - including lead, which is linked to brain damage - were found in the liquid of some devices

    Researchers have found that metals are leaking from the components of e-cigarettes into the vapour - which could potentially be toxic when breathed in by the user.

    A study discovered that five metals - including lead, which is linked to brain damage - were found in the liquid of the device, which is then heated up and inhaled.

    In the study, researchers at Johns Hopkins University in Baltimore, US, examined five brands' cigarette-like models of first generation vaping devices, which more closely resemble traditional cigarettes.

    In 'cig-a-like' devices, liquid is stored in a cartridge along with the coil, which increases the liquid's exposure to the coil, even in the absence of heating.

    The five brands tested are sold across the United States in big-box retail stores, convenience stores, and petrol stations, as well as online.

    Three of the five brands constituted 71% of total market share in 2015.

    To test the liquid for metal levels, the researchers extracted samples of the liquid that had not been heated by the coil prior to extraction. The liquid is a mixture of propylene glycol, glycerin, nicotine, and flavorings.

    Because liquid volume varied considerably from brand to brand, the research team tested for concentrations of metals in micrograms per litre, and if a brand came in more than one flavour, the researchers chose one flavour for the sake of consistency.''

    The metals - cadmium, chromium, lead, manganese, and nickel - were all found in the tested liquids.


    Ana Maria Rule, an assistant scientist in the Department of Environmental Health and Engineering, who led to the study, said: "We do not know if these levels are dangerous but their presence is troubling and could mean that the metals end up in the aerosol that e-cigarette users inhale.

    "One of the things that is troubling is that the metals in e-cigarette coils, which heat the liquid that creates the aerosol, are toxic when inhaled, so perhaps regulators might want to look into an alternative material for e-cigarette heating coils."

    She added: "It was striking, the varying degrees to which the metals were present in the liquid.

    "This suggests that the FDA should consider regulating the quality control of e-cigarette devices along with the ingredients found in e-cigarette liquids.

    Toxic metals linked with brain damage are 'leaking from e-cigarettes into vapour', experts have found - Mirror Online
     
    -V-, Feb 23, 2018
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  2. AI-NAAM
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    AI-NAAM Provarinati Member

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    Here's a link to the report-

    Environ Health Perspect    ; DOI:10.1289/EHP2175

    Metal Concentrations in e-Cigarette Liquid and Aerosol Samples: The Contribution of Metallic Coils
    Environmental Health Perspectives – Metal Concentrations in e-Cigarette Liquid and Aerosol Samples: The Contribution of Metallic Coils

    From the conclusion of the paper:

    These findings support the hypothesis that metals are transferred from the device (most likely the coil) to the e-liquid and from the e-liquid to the aerosol that is inhaled by the user. Due to potential toxicity resulting from chronic exposure to metals in e-cigarette aerosols, additional research is needed to more precisely quantify metal exposures resulting from e-cigarette use and their implications for human health, and to support regulatory standards to protect public health.
    Source:
    Johns Hopkins Bloomberg School of Public Health

    I hope they continue this research so we know which are the safer products and materiel's for vaping.
     
    AI-NAAM, Feb 24, 2018
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  3. -V-
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    -V- Thread Starter Administrator Staff Member

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    -V-, Feb 24, 2018
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  4. jpr
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    jpr Well-Known Member

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    that what I was thinking , I didn't want to answer cause I'm not a scientist.
    maybe jogging 1 h or drive a bike 30km for exercising , in BKK this time, could be worst than smoke one or two packs of cigarette or vape 1 liter of "unclear" e liquid? I just don't have the answer.
    few year ago, you could read a polemic in the press about jogger in Paris "bois de boulogne" near the express way who inhale more carbon dioxide and small particles than a standard smoker (1 pack)
     
    jpr, Feb 24, 2018
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  5. jorakae

    jorakae Well-Known Member

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    If you search on their site for anything related to e-cigarettes this study is just a rehash of a similar one they did in 2017. They have two studies listed with only slightly different headlines, one published in 2017 and one in 2018. Both the 2017 and 2018 publication are using data from 2015. It seems they could be the exact same study presented differently. In other studies they talk about impaired immune responses in mice which has also been rehashed twice. If you read to the very end of the mice study about free radicals, it says it is 100 times lower than cigarettes which was the comparison I'm looking for. I couldn't find such a comparison in the toxic metals study although the American Lung Association identifies some of the same elements such as lead and cadmium in cigarette smoke. While they propose more regulation of e-cigarettes, I wonder how much more regulation they are pushing for analogs.
     
    jorakae, Feb 24, 2018
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  6. AI-NAAM
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    AI-NAAM Provarinati Member

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    Dr. Farsalino shows a comparison of metals in e-cigs/IQOS/tobacco cigs in this video at the 18 minute mark:
     
    AI-NAAM, Feb 24, 2018
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