[Water quality and environmental pollution of rivers (author's transl)].
D005618:Fresh Water / Q000032:analysis; D007220:Industrial Waste / Q000032:analysis*; D007564:Japan; D014873:Water Pollutants / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*
D007220:Industrial Waste; D014873:Water Pollutants; D014874:Water Pollutants, Chemical