Eating fish means eating mercury in meaningful quanties. The EFSA advocates for that reason against eating tuna every day.
If I buy sea salt, does it also contain mercury? Is so how much? Is it a meaningful quantity such as tuna?
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Did you do any research into this question by any chance? Could you share what you found? Thanks, and welcome to the site. :-) – anongoodnurse Sep 04 '15 at 19:46
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In general, the answer seems to be no, it does not contain a meaningful quantity. Refer first to this answer in Seasoned Advice.
Although not peer reviewed, this article appears to be a credible source and it's the only documented direct test for mercury in sea salts that I've seen. Refer to Table 3 (Hg is mercury).
Carey Gregory
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2I've been looking into this, and I also haven't managed to find another article about quantities of mercury in salt, aside from the one you cited. Their methodology is sound, I can see no apparent conflict of interest as they produce analytical standards (nothing health related) and as someone who's business is in analytics, they should know what they're doing. – Lucky Sep 12 '15 at 05:55
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