§ Mr. Simon HughesTo ask the Secretary of State for the Environment what changes in ultraviolet radiation levels have been revealed by the continuous monitoring by the National Radiological Protection Board in the last three months; if he will publish the relevant data; and if he will make a statement.
§ Mr. DorrellI have been asked to reply.
A preliminary analysis of results obtained at Chilton, Oxfordshire, as part of the National Radiological Protection Board's programme of development for solar radiation measurement, for the months December 1991 to February 1992, does not indicate any signficant differences in mean levels from those expected. Temporal variations in levels appear to be within the range of variations expected from variability in local weather conditions.