Contamination of heavy metals in the environment on Earth. Water and air, causing damage and be harmful to living organisms, and is a major problem in the world today.
The contamination of heavy metals in environmental, soil, water and air, causing damage. And harmful to living things and is a major problem in the world today.
The contamination of heavy metals in soil and water environment, air, causing damage. Harms and creatures and is an important problem of the world today.