HC Deb 25 February 1970 vol 796 c342W
Mr. Lane

asked the Minister of Agriculture, Fisheries and Food what investigations he is supporting into the relationship between phosphate discharge in river effluents and excessive growth of algae.

Mr. Mackie

None. I am advised that the levels of phosphate found in river waters are attributable almost wholly to industrial and sewage effluents and not to agricultural practices.

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