Water Quality – Quality can be measured in terms of the chemical, physical and biological content of water
The most common standards used to assess water quality relate to health of ecosystems, safety of human contact and drinking water.
One of the water droplets won a rosette for quality (water quality).
Electrical conductivity measures the ability of water to conduct an electrical current. The higher the concentration of dissolved charged chemicals (also known as salts) in the water, the greater the electrical current that can be conducted. Charged ions include calcium, potassium, chloride and nitrates. A higher figure indicates pollution.