Heavy Metals - Статья по прочим предметам

 

Тезисы:

  • Heavy metals are natural components of the Earth's crust.
  • Heavy metals are dangerous because they tend to bioaccumulate.
  • Now we are going to describe the effects of the heavy metals in the environment.
  • The three most pollutans heavy metals are Lead, Cadmium, and Mercury.
  • They cannot be degraded or destroyed.
  • To a small extent they enter our bodies via food, drinking water and air.
  • However, at higher concentrations they can lead to poisoning.
  • Environmental and health risks.
  • Antimony is a metal used in the compound antimony trioxide, a flame retardant.
  • It can also be found in batteries, pigments, and ceramics and glass.
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