Acid Rain: Report number 14
What is loosely described as OCyacid rainOCO is not a new phenomenon. The burning of coal and other fossil fuelsmust have always resulted in the production of sulphur dioxide, and, where the combustion temperatures arehigh, of oxides of nitrogen. These may be present in various stages of oxidation and are often referred to assimply SOx and NOx. The Clean Air Act 1956 with its limitations on the burning of raw coal in urban areashas virtually eliminated OCysmogOCO in British cities but has not directly reduced the SOx emissions.It is only during the last decade or so that Acid Rain has become a topic of discussion vying with nuclearenergy in its emotive power. Initially attention was mainly concerned with the alleged effect of these gasesand the acids formed therefrom on lakes and rivers in Scandinavia. This concern was soon followed by reportsof serious damage to, for instance, the Black Forest, and, more locally, to lakes in the Galloway area anddamage in other parts of Scotland. In the case of these and many other examples, suggestions, still to beverified, have been made about the probable origin of the pollutants."
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Section 1 The fate of airborne pollution
Section 2 Vegetation and soils
Section 3 Freshwater
Section 4 Remedial Strategies
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acid deposition acid precipitation acid rain acid waters acidification air pollution aluminium ambient air areas base cations buffering calcium carbonate catchments CEGB changes chemical chemical records clean air coal combustion Committee on Energy compared with clean concentrations contribution costs damage dry deposition ecosystems effects of acid effects of SO2 electricity EMEP Engineers environmental episodes estimated Europe European evidence exchange Figure fish populations forest Freshwater fuel hydrogen ions impact industrial Institute Lake District lichens lochs measurements Meteorological models monitoring nitrate nitric nitric acid nitrogen oxides occur ozone Pennines pH level pH values photosynthesis plant growth power stations problem processes production programme rainfall reaction reduction Report Research result Royal Meteorological Society Scotland significant SO2 and NO2 SO2 emissions soil sources species stomatal streams sulphate sulphur and nitrogen sulphur deposition sulphur dioxide Table technologies tonnes trees vegetation Water Authority Watt Committee wet deposition