Why would anyone question anything based on your comment?
You didn’t link to an article presenting information that supports you. You didn’t link to information showing why mercury in this type of use would be low.
You didn’t present any factual… Anything.
You didn’t even claim to be someone with training in this area that would give your opinion weight.
Your comment is the equivalent to saying you don’t believe elephants are real, but not even saying it is because you have never seen one, which would have still been a weak argument.
Opinions without evidence can be dismissed without evidence.