Journal of Environmental Biology

Atmospheric light air ion concentrations and related

meteorologic factors in Rezekne city, Latvia

 

Author Details

 

Andris Skromulis

(Corresponding author)

Department of Environmental Protection, Faculty of Egineering, Rezekne Higher Education Institution,

Rezekne, LV 4601, Latvia

e-mail: andris.skromulis@inbox.lv

 

Gotfrids Noviks

Department of Environmental Protection, Faculty of Egineering, Rezekne Higher Education Institution,

Rezekne, LV 4601, Latvia

 

 

Publication Data

Paper received:

25 July 2010

 

Revised received:

02 July 2011

 

Accepted:

30 July 2011

 

Abstract

The well-minded impact of light negative air ions on human organism is still under discussion. The measurements of air ions are not widespread in Latvia yet. The paper presents new results of air pollution evaluation in Rezekne city. Measurements of positive and negative air ion concentrations in Rezekne city were taken during the spring, summer and autumn 2009 and during the winter 2010. Measurements were taken by portative air ions counter “Sapfir-3M” in eight different points of Rezekne city thrice a day. The concentrations of positive and negative air ions with mobility factor k ³ 0.4 cm² V^-1 s^-1 were measured. Temperature, relative humidity, wind velocity, direction, etc., were also taken into account. The approximate interconnection between ionization and chemical and mechanical air pollution in relation with meteorological conditions was analyzed. The highest level of air ion concentration was observed in mornings, whereas in afternoons this concentration level decreased due to the growth of anthropogenic air pollution in the city, as light air ions, because of their charge, promoted the coagulation and the settlement of pollution particles. This regularity is typical for summer, whereas in spring, autumn and winter it is not characteristic. The unipolarity factor was usually less than 1 in mornings, but usually larger than 1 in afternoons especially in the most polluted city areas where minor concentration of air ions was detected.  The ionization level is an original indicator of energetic saturation and aerosol pollution of atmospheric air.

 

Key words

Air ions, Air quality, Air pollution, Air ionization

 

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