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Turbiditet (FTU) vs dybde over tid Tid Dybde (m) 0.5 1 1.5 2 Turbiditet (FTU)
Grafen viser turbiditet på forskjellige dybder over tid.
Turbiditet, er uklarheten i vannet og er forårsaket av et stort antall av partikler som generelt er usynlig for det blott øyet, i likhet med røyk i luft.
Turbiditeten er et viktigmål for vannkvaliteten.
Økt uklarhet kan komme av biologiske partikler som for eksempel plankton, sedimenter i vannet, eller annen type forurensing somfor eksempel støv eller kjemiske partikler.
Måles i FTU (Formazin Turbidity Unit).