Atmospheric Chemistry and Physics

An Interactive Open Access Journal of the European Geosciences Union

| Contact |
Volumes and Issues  Contents of Issue 12  Special Issue  
Atmos. Chem. Phys. Discuss., 10, 30691-30729, 2010
www.atmos-chem-phys-discuss.net/10/30691/2010/
doi:10.5194/acpd-10-30691-2010
© Author(s) 2010. This work is distributed
under the Creative Commons Attribution 3.0 License.

South African EUCAARI – measurements: a site with high atmospheric variability

L. Laakso1,2,9, V. Vakkari2, H. Laakso2, A. Virkkula2, M. Kulmala2, J. P. Beukes1, P. G. van Zyl1, J. J. Pienaar1, K. Chiloane3, S. Gilardoni4, E. Vignati4, A. Wiedensohler5, T. Tuch5, W. Birmili5, S. Piketh6, K. Collett6, G. D. Fourie7, M. Komppula8, H. Lihavainen9, G. de Leeuw9,10, and V.-M. Kerminen2,9
1School of Physical and Chemical Sciences, North-West University, Potchefstroom, South Africa
2Department of Physics, University of Helsinki, Finland
3ESKOM, Sustainability and Innovation, Environmental Sciences Department, South Africa
4Climate Change Unit, European Commission DG JRC, Ispra, Italy
5Leibniz Institute for Tropospheric Research, Leipzig, Germany
6Climatology Research Group, University of the Witwatersrand, Johannesburg, South Africa
7Sasol Technology, Research and Development, Sasolburg, South Africa
8Finnish Meteorological Institute, Kuopio, Finland
9Finnish Meteorological Institute, Helsinki, Finland
10TNO, Utrecht, The Netherlands

Abstract. In this paper, new long-term measurements of chemical composition and physical properties of atmospheric aerosols carried out on the eastern brink of the heavily polluted Highveld area in South Africa are introduced. As expected, a high variability of aerosol properties was observed. Optical properties of aerosol particles were found to be closely correlated with particulate mass and number concentration in the case of polluted air masses. In contrast, in clean conditions there was no clear connection between optical properties and aerosol number concentration due to the presence of multiple sources including new particle formation.

Discussion Paper (PDF, 1148 KB)   Interactive Discussion (Closed, 4 Comments)   Final Revised Paper (ACP)   Special Issue

Citation: Laakso, L., Vakkari, V., Laakso, H., Virkkula, A., Kulmala, M., Beukes, J. P., van Zyl, P. G., Pienaar, J. J., Chiloane, K., Gilardoni, S., Vignati, E., Wiedensohler, A., Tuch, T., Birmili, W., Piketh, S., Collett, K., Fourie, G. D., Komppula, M., Lihavainen, H., de Leeuw, G., and Kerminen, V.-M.: South African EUCAARI – measurements: a site with high atmospheric variability, Atmos. Chem. Phys. Discuss., 10, 30691-30729, doi:10.5194/acpd-10-30691-2010, 2010.   Bibtex   EndNote   Reference Manager    XML
 

Search ACP


News

Recent Papers