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Thread: How much micro plastics per metric ton of sea salt?

  1. #1 How much micro plastics per metric ton of sea salt? 
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    How much in weight, of polymers/micro plastics in there per metric ton of sea salt from major manufacturers?
    What's the rate of increase per year?
    How much is too much for safety of consumption?


    Last edited by RamenNoodles; September 23rd, 2017 at 01:07 AM.
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  3. #2  
    Forum Radioactive Isotope Paleoichneum's Avatar
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    what brings up this question? and what research have you done?


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    Quote Originally Posted by Paleoichneum View Post
    what brings up this question?
    Curiosity.

    Quote Originally Posted by Paleoichneum View Post
    and what research have you done?
    I saw a video about lots of plastic waste getting dumped into the ocean, and that water and rocks pulverizes the plastics over time into micro particles known as micro plastics.
    Insoluble polymers turns into micro plastics, soluble polymers are... soluble.
    I've read that sea salt production's processing is minimal: the filtration of large impurity particles are drained off from the brine prior to harvesting.
    I presume that the filtration method described in the above sentence might not even remove the insoluble ones.
    I am unable to find details on the filtration process, because Google just keeps giving me results about methods of getting drinkable water from sea-water.
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  5. #4  
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    You could try this Nature Article. Not sure it gives a definitive amount; sounds more like they collected pieces above a certain size - because they would have had to invest in, or perhaps develop, the equipment to separate smaller pieces.
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  6. #5  
    Brassica oleracea Strange's Avatar
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    Doesn't really answer the question, but maybe interesting: Will there be more fish or plastic in the sea in 2050? - BBC News
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