Warshadaha daaweynta biyaha, alaabta sifaynta ayaa si weyn loogu dabaqaa ka saarista walxaha la hakiyey, wasakhda, walxaha organic, kiimikooyinka, iyo microorganisms ee biyaha, hagaajinta daahfurnaanta, turbidity, urta, iyo dhadhanka.
Warshadaha daaweynta biyaha, alaabta sifaynta ayaa si weyn loogu dabaqaa ka saarista walxaha la hakiyey, wasakhda, walxaha organic, kiimikooyinka, iyo microorganisms ee biyaha, hagaajinta daahfurnaanta, turbidity, urta, iyo dhadhanka.