Definition and Citations:
They can be Arsenic, Beryllium, Cadmium, Chromium, Lead, Mercury, Nickel, Selenium, and Manganese. They are used in industrial process and carried by air or water. They stay in organs and can be measured.
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They can be Arsenic, Beryllium, Cadmium, Chromium, Lead, Mercury, Nickel, Selenium, and Manganese. They are used in industrial process and carried by air or water. They stay in organs and can be measured.