0 a chemical element that is very poisonous, often used to kill rats -- arsénico
1 (symbol As) an element used to make certain poisons. -- arsénico
2 a poison made with arsenic. -- arsénico
By classifying these pipes in the same way as arsenic, you could mislead people into thinking that they are dangerous.
I am referring to copper, which is still included in the table of chemical parameters, which lists arsenic, cyanide, mercury, lead and other poisons.
Furthermore, there are more indications that other metals should be placed on the list of priority substances, such as copper and arsenic.
Why do we not do the same in the case of arsenic, cadmium, mercury and nickel?
The framework planned is sufficiently restricted and, in my view, it is wiser to integrate copper into indicative parameters rather than chemical ones, along with arsenic and other elements.
