Summary
In the present study we examine the daily and annual variation of the concentration of positive and negative large ions in the air above Athens (ϑ = 37°58′N, λ = 23°43′E,h = 107 m), for the 9-year period 1969–1977. The diurnal variation of the large ion concentration follows a double oscillation. Their annual variation is parallel to that of smoke, presenting a maximum in winter and a minimum in summer. A Fourier analysis of their diurnal variation was also made. In addition we have examined the influence of air temperature and relative humidity on the concentration of positive and negative largeions.
Zusammenfassung
In dieser Arbeit wird der Tages- und Jahresgang der Konzentration der positiven und negativen großen Ionen in der Luft über Athen (ϑ = 37°58′N, λ = 23°43'E,h = 107 m) für den Zeitraum 1969 bis 1977 untersucht. Der Tagesgang der Konzentration der grossen Ionen zeigt eine Doppelwelle. Der Jahresgang verläuft parallel zum Jahresgang der Luftverunreinigung und weist den größten Wert im Winter auf, während der kleinste Wert auf den Sommer fällt. Der Tagesgang dieser Ionen wird auch einer Fourier-Analyse unterworfen. Es wird auch der Einfluß der Temperatur und der relativen Feuchtigkeit der Luft auf die Konzentration der positiven und der negativen großen Ionen untersucht.
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Retalis, D.A. Study of large ions concentration in the air above Athens. Arch. Met. Geoph. Biocl. A. 32, 135–143 (1983). https://doi.org/10.1007/BF02272718
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DOI: https://doi.org/10.1007/BF02272718