Myocardial water pollution water quality refers to conditions that have changed from the original natural conditions are worsening and affects human's life and organisms in the water.
Water pollution refers to a state where water quality has changed from the original nature. The conditions worsen And affect the lives of humans and creatures in the water.
Water pollution refers to the conditions of water quality changed from the original nature, until the condition worse. And affect the living of human beings in the water