Atmospheric deposition in relation to acidification and by J. W. Erisman

By J. W. Erisman

During this publication the learn on atmospheric deposition of the Dutch precedence Programme on Acidification learn is summarised. even if such a lot learn defined is of Dutch beginning, it's been positioned right into a broader standpoint through outlining the nation of information at the technique affecting atmospheric deposition in Europe. This has ended in designated deposition maps for the Netherlands and Europe. the quantity is meant in the event you degree or version atmospheric deposition and ecologists drawn to publicity from atmospheric deposition, in addition to policy-makers and scholars.

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Extra resources for Atmospheric deposition in relation to acidification and eutrophication

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Smith (1872) warns for the destruction of roots due to the acid exposures in Belgium, France and Germany. Scientific research on acidification of rivers and lakes started in the 1920s (cf. , 1989). Experiments had indicated that the trout populations were declining as a result of low pH of the water (Dahl, 1926). The relation between the acidity of freshwater and precipitation was suggested in 1934 (Torgerson, 1934). The public interest in the subject was renewed in Scandinavia about 30 years ago (Od6n, 1967).

Brimblecombe, 1987). He advised the experimenter to hang up clothes or silks died with colours to use the fading or changes in colour as an indicator for the presence of particular nitrous or salino-sulphurous spirits. In 1744 the French chemist Rouelle found sulphur dioxide, or at least sulphate, in air by using a modified version of the technique outlined by Boyle. Van Driessen and Vanhof found in Amsterdam hydrogen sulphite and sulphuric acid (cf Ludwig, 1862). In Copenhagen the existence of hydrogen sulphite was demonstrated because the silver works in the houses near the coast were blackened to a large extent.

Matters of organic origin, all more or less nitrogenised, decompose, either at the surface of the land or at a very small depth, and among the products of this decomposition we find carbonate of ammonia, a very volatile substance. A portion of this substance remains in the soil and contributes to the prosperity of the plant; another part is dessiminated in the air. ' The oldest long-term measurements of wet deposition are those made at Rothamsted in England during 1880- 1920 (see Brimblecombe and Stedman, 1984) and the measurement taken by Albert Levy in Montsouris near Paris during 1876 - 1907 (see Ulrich and Williot, 1993).

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