§ Mr. Canavanasked the Secretary of State for Scotland which experts in meteorology, cartography and geography his officials have consulted to establish the likely areas of aerial deposition, under varying local meteorological and micro-climatic conditions, of substances suspended or dissolved in smoke plumes from tall chimneys in the area within a radius of five miles of Bonnybridge, Stirlingshire; and what steps he has taken to test theoretical models against recorded phenomena in the area.
§ Mr. AncramWarren Spring laboratory of the Department of Trade and Industry has, at the instance of my Department, studied atmospheric dispersion in central Scotland. The work, which was carried out over a four-year period, included mathematical modelling of dispersion in the atmosphere, and comparison of values of smoke and sulphur dioxide concentrations predicted by the model with measured values. The work which is relevent to pollutants other than smoke and sulphur dioxide has been reported: Warren Spring laboratory LR279(AP) "The Measurement, Assessment and Prediction of Air Pollution in the Forth Valley of Scotland — Final Report", published in 1978.