Author(s)

D.E. Conlan, J.W.S. Longhurst, S. Lindley & D.W. Raper

Abstract

Spatial variability in precipitation chemistry in the urban area of Greater Manchester, United Kingdom D.E. Conlan, J.W.S. Longhurst, S. Lindley, D.W. Raper Atmospheric Research and Information Centre, Department of Environmental and Geographical Sciences, Manchester Metropolitan University, ABSTRACT The spatial and temporal variability of acid deposition in the urban environment of Greater Manchester UK, has been investigated by the deployment of a small-scale intensive network of bulk collectors. This network has been in operation since 1986. The spatial variability of the concentrations of non-marine (nm) sulphate, nitrate, ammonium, hydrogen and calcium are reported for 1992. Acidity was generally lowest in the city centre of Manchester where calcium concentrations were greatest. Calcium compounds in the urban atmosphere of Greater Manchester effectively buffer the acidity of precipitation providing an urban anomoly in precipitation acidity. INTRODUCTION Urban are

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