hyedenny said:
If your soil has 5% arsenic, THAT EXPLAINS A LOT!!! You should open up your backyard as a commercial arsenic mine. Youre trying to tell us that your soil has up to 5 kilograms of arsenic for every 100 kilograms of soil?! I dont believe it.
Well back in the Gold Rush days, 1890's and early 1900's there were NO Polution Standards.
Yes it is That High. In some of the Tailing areas, Even Higher.
In Somewhat Recent times, they have covered them over with dirt and maneur, Just so they could make some plants grow, helping avoid it being blown all over the place by the wind.
Unfortunately there is no Great Demand for Arsenic and It is Quite Abundant all over the world.
This is an OLD Gold Mining town and most of the Pollution is courtesy of the "US Prospectors" coming here to get rich. The Ore was processed, Concentrating the Arsenic Content and the waste material were dumped where ever they wanted to.
Sodium Cyanide was also used in the Refining process and the empty cyanide drums were mostly just thrown anywhere. A lot of them were used for Septic systems. Guess where the Cyanide is Now?
All the gold from here was shipped by train, directly to the US.
By the time Pollution laws came into effect, Too Late. Those mining companies were no longer in a financial position to clean up much of anything.
Were talking about Millions, possibly trillions of Tons of contaminated soil.
As to POLUTION, I'm Quite sure you have Many Mining towns in the US that are Just as Polluted.
And Speaking of Pollution and the USA, When are you going to Clean up your Hydrocarbons going into the air and Distroying the Ozone Layer? Talk about a Major Problem!
And as to My Etching, I doubt I use more than 1 Liter of FeCL in a year. Mostly I use my Reverse Electro-etch Process as I show on my website.