AIRBORNE CONCENTRATIONS AND DEPOSITION FLUXES OF MAJOR AND TRACE SPECIES AT MARINE STATIONS IN SOUTHERN SCANDINAVIA

Extensive measurements of airborne concentrations and deposition fluxe s of many major and trace species were performed within the framework of the BMCAPE project (Background Maritime Contribution to Atmospheric pollution in Europe) at two Scandinavian sites (Saby in Sweden and Li sta in Norway) during four seasons in 1993 and 1994. The study focused on gaseous and particulate S-, N- and Cl-species. Airborne concentrat ion levels during the different campaigns, seasons and the various air masses encountered are presented for the following gaseous and partic ulate species: SO2, HCl, NOx, HNO3, NH3, SO42-, NH4+, NO3-, S, Cl, K, Ca, V, Ni, Zn, Br, Pb and condensation nuclei. In addition, particle c oncentrations of Ti, Fe; Cu and Mn are discussed in the text. A time s eries is given for particulate and gaseous Hg. Annual flux estimates f or Southern Scandinavia are given for Mn, Fe, Ni, Cu, Zn, Pb, Cl, S, n on-sea-salt-sulphate-S, As, Na, K, Ca, Mg, NO3--N and NH4+-N. Based on direct dux measurements to a water surface, dry deposition velocities are determined for nine elements: Mn, Fe, Ni, Cu, Zn, Pb, Cl, S, Ca. Copyright (C) 1996 Elsevier Science Ltd.