References
- Bouland, D., Bricard, J. and Madelaine, G. 1978. Aerosol growth kinetics during SO2 oxidation. Atm. Env. 12, 171–185.
- Brosset, C., 1973. Airborne acid. Ambio 2, 2–9.
- Calvert, J. G., Su, F., Bottenheim, J. W. and Stransz, O. P. 1978. Mechanism of the homogeneous oxidation of sulfur dioxide in the troposphere. Atm. Env. 12, 197–226.
- Charlson, R. J., Covert, D. S., Larson, T. V. and Waggoner, A. P. 1978. Chemical properties of tropospheric sulfur aerosols. Atm. Env. 12, 39–53.
- Granat, L., Söderlund, R. and Malin, L. 1977. The IMI network in Sweden. Present equipment and plans for improvement. Report AC40 77, University of Stock-holm, Dept of Meterology/International Metero-logical Institute, Stockholm, Sweden.
- Hansen, L. D., Ryder, J. F., Mangelson, N. F., Hill, M. W., Fancette, K. J. and Eatough, D. J. 1980. Inaccuracies encountered in sulfur determination by proton induced X-ray emission. To appear in Anal. Chemistry.
- Harrison, H., Larson, T. and Hobbs, P. U. 1975. Oxidation of sulfur dioxide in the atmosphere: a review. Proceedings International Conference on Environmental Sensing and Assessment. Las Vegas, Nevada, September 1975.
- Johansson, S. A. E. and Johansson, T. B. 1976. Analytical application of particle induced X-ray emission. Nucl. Inst. Meth. 137, 473–516.
- Johansson, T. B., van Grieken, R. E., Nelson, J. W. and Winchester, J. W. 1975. Elemental trace analysis of small samples by proton-induced X-ray emission Anal. Chemistry 47,855–860.
- Johansson, T. B., van Grieken, R. E. and Winchester, J. W. 1976. Elemental abundance variation with particle size in north Florida aerosols. J. Geophys. Res. 81, 1039–1046.
- Kaufmann, H. C., Akselsson, K. R. and Courtney, W. J. 1977. REX-a computer programme for PIXE-analysis. Nucl. Instr. Meth. 142, 251–258.
- Lannefors, H. O., Johansson, T. B., Granat, L. and Rudell, B. 1977. Elemental concentrations and particle size distributions in an atmospheric background aerosol. Nucl. Instr. Meth. 142, 105–110.
- Nelson, J. W., Jenson, B., Desaedeleer, G. G., Akselsson, K. R. and Winchester, J. W. 1976. Automatic time sequence filter sampling of aerosols for rapid elemental analyses by proton-induced X-ray emission. Adv. in X-ray Anal. 19,403–413.
- OECD 1977. The OECD program on long-range transport of air pollutants. Measurements and find-ings. OECD, Paris.
- Ottar, B. 1977. International agreement needed to reduce long-range transport of air pollutants in Europe. Ambio 262–269.
- Rodhe, H., Persson, C. and Akesson, O. 1972. An investigation into regional transport of soot and sulfate aerosols. Atm. Env. 6,675–693.
- Sweden's case study for the United Nations Conference on the human environment 1971. Sulfur Pollution across national boundaries. Royal Ministry for Foreign Affairs, Stockholm, Sweden.