§ Mr. Dalyellasked the Secretary of State for the Environment what study he is making of cyanuric acid techniques, developed at the United States Department of Energy's Lawrence Livermore laboratory, as a means of anti-pollution control; and if he will make a statement.
§ Mr. WaldegraveMy Department is following the progress of the experimental work at the Sandia national laboratories in California on the use of cyanuric acid to reduce nitrogen oxides in exhaust gases. First laboratory tests have been promising, but the feasibility of applying the method to practical combustion systems has yet to be demonstrated.