Posted on 03/09/2020 1:43:27 PM PDT by SunkenCiv
In 2015, researchers reported that cod caught off the North American coast around 6,500 years ago by Stone Age hunter-gatherers contained more than 20 times the levels of mercury recommended for humans today... They analyzed the chemical composition of bones of animals, like Atlantic cod and harp seals, disposed of in ancient garbage pits, and so preserved to this day. Both species were among the main ingredients in the diet of the local people, even if the early hunter-gatherers, based on cut marks found on the bones, also successfully hunted for haddock, whale, dolphin, reindeer and beaver.
The analyzed bones of the cod at these sites contained more than 20 times the maximum level of cadmium and up to four times the highest level of lead that today food safety authorities consider safe. Cadmium can cause kidney, liver, and lung diseases, while lead attacks the nervous system. The studied seal bones contained up to 15 times the recommended levels of cadmium, up to four times the recommended levels of lead, and high levels of mercury. Mercury can cause kidney problems and also damages the nervous system...
During the Last Glacial Maximum, about 20,000 years ago, sea levels were more than 900 feet (300 meters) lower, exposing large parts of the shelf areas of the continents Weathering and erosion caused rocks to break down, releasing heavy metals into the soil. At the end of the last ice-age, between about 14,000 and 6,000 years ago, the sea levels rebounded. The previously exposed areas were inundated and the metals became dissolved in the seawater. Over time the heavy metals will accumulate in the marine food chain, with humans acting as apex predator and getting the highest potentially toxic levels.
(Excerpt) Read more at forbes.com ...
Now they use aluminum as an adjuvent. Because it's safer than mercury.
Too bad they didn’t have Greta T to set them straight...how dare they...
Pre-stone age industrialists, dumping mercury in the ocean.
that's the one. ;^)
It shows our estimates of what is "safe" are extremely low, far lower than what is reasonable.
They are only as low as they are, because we have the ability to measure insanely low amounts. It has nothing to do with what has been shown to be dangerous.
“They were as smart as we are; maybe smarter.”
Well, depending on how much mercury fish they ate, maybe not quite as smart.
So they are saying that mercury pollution is natural and not man made.
Yes, groundwater wells will also contain various metals, no mater what the depth. And just because a well is drilled and tested with levels lower than the Maximum Concentration Level (MCL) those levels can increase over time and even cause them to be abandoned.
I once worked for a small city in Eastern Washington which got all of its water from deep (1,000 foot +) wells and the scientist from the Hanford area would come get background water from us because of the purity to compare to the wells on the Hanford Reservation.
Me too. Ain’t that sumpthin...
Well put.
The popular Neanderthal entertainment, The Cavebear Hunter.
How dare you!
This is why I don’t travel back in time.
A close nephew of mine has a home with well water. I have been trying to get him to have the well tested, which was last done when they bought the house at least twenty years ago - and they are not the original owners.
“So they are saying that mercury pollution is natural and not man made.”
Cool, so they’ll open the U-864 wreck area for diving now?
https://en.wikipedia.org/wiki/German_submarine_U-864
-—exactly—the proliferation of testing facilities that came about with the EPA has allowed us to find everything in anything and anything in everything-
We used mercurochrome for warpaint when playing Cowboys and Indians...
AND oddly enough, we're both still alive!
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