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… the recycling process is done with little knowledge of the toxicity of lead, and is conducted under poor conditions of … cause toxic effects but it becomes a potential source of toxicity when metabolic changes cause more rapid release. … children are particularly vulnerable to the neurological toxicity of lead and this is the main reason that lead is of …

… or more. Time also matters with regard to the long-term toxicity of radioactive waste (it takes 24 000 years for half …