Solar water disinfection (SODIS) involves exposing water-filled plastic polyethylene terephthalate (PET) bottles to sunlight for several hours. Exposure times vary depending on weather and climate from a minimum of six hours to two days during fully overcast conditions. It is recommended by the World Health Organization as a viable method for household water treatment and safe storage. Over two million people in developing countries use this method for their daily drinking water.
Solar water disinfection ( SODIS ) involves exposing water - filled plastic polyethylene terephthalate ( PET ) bottles to sunlight for several hours . Exposure times vary depending on weather and climate from a minimum of six hours to two days during fully overcast conditions . It is recommended by the World Health Organization as a viable method for household water treatment and safe storage . Over two million people in developing countries use this method for their daily drinking water .
How many people use Solar water disinfection to disinfect their drinking water?
How many people use Solar water disinfection to disinfect their drinking water ?
Over two million people in developing countries
Over two million people in developing countries