Waterborne trade effluents. (a) The control of river pollution.
D007220:Industrial Waste / Q000517:prevention & control*; D012722:Sewage; D006113:United Kingdom; D014872:Water Movements; D014876:Water Pollution / Q000517:prevention & control*; D014877:Water Pollution, Chemical / Q000517:prevention & control
D007220:Industrial Waste; D012722:Sewage