Significant differences were noted in the character of monthly changes of the precipitation volumes and in the annual precipitation volumes in the years 2002, 2003 and 2004. The year 2003 was exceptionally dry against the long-term mean. The mean annual pH indicates a significant acidification of precipitation. The most frequently noted pH of the precipitation varies in the range <4.1-4.6> for 2002 and 2004, whereas <4.6-5.1> for 2003. The annual mean electric conductivity of the precipitation testifies to its pollution at an intermediate level. No significant changes in pH and conductivity of precipitations against the long-term mean were observed.
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