Humans who eat plants or animals th

Humans who eat plants or animals that have accumulated large amounts of soil pollutants may be poisoned, even if the soil itself does not contain enough pollution to harm human health. Furthermore, the presence of heavy metals in soil in toxic amounts can cause irreversible developmental damage in children. Lead and mercury in soil may also be harmful to human health. Although lead and mercury may be found naturally in soil, high concentrations of either metal may cause damage to the developing brains of young children, which in turn may lead to neurological problems. Humans of any age may also suffer kidney or liver damage from exposure to excessive mercury in soil.

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