§ The Parliamentary Secretary to the Ministry of Works (Mr. J. R. Bevins)
The Water Pollution Research Laboratory has shown that the toxic effect of synthetic detergents on fish is very small in the concentrations at present found in British rivers. Detergents tend, however, to reduce the rate at which water dissolves oxygen from the air. Research on this matter is continuing.
§ Mr. Bevins
While my noble Friend is worried about the situation of the anglers, he is even more worried about the situation of the fish. That is why this research is going on.