MASSIMO BREGA, THE LIGHTHOUSE / SCIENCE PHOTO LIBRARY MASSIMO BREGA, THE LIGHTHOUSE / SCIENCE PHOTO LIBRARY
Drinking water tank being tested. Chemist holding a water tank containing drinking water from a waterworks. She will be testing the water for excessive amounts of pollutants, heavy metals, toxins and micro-organisms. This water, taken from a river, has been purified of solid material and disinfected with ozone. Photographed at a laboratory operated by SMAT, the metropolitan water company of Turin, Italy.
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