Re: The Audiophoolery Thread.
Cadmium mining tailings also got in on the act. Cadmium just has a terrible history of pollution from beginning to end.
Chromium doesn't get off easily, a proportion always turns into the valency-6 form which is also banned. As there is a small amount of residual chromium in cement, they add an agent to oppose this. The agent has a limited life and so bags of cement now have use-by dates printed on them.
David
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Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done
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