Trends in Precipitation of Air Pollutants at Estonian Monitoring Stations 1994–2005

Abstract

This study concentrates mainly on the 12-year time trends of annual average ion concentrations in bulk precipitation from 10 Estonian monitoring stations. Trends revealed by the nonparametric Mann-Kendall test mostly show a statistically significant decline and, according to the order of ion decline per year, three groups of stations could be differentiated… (More)

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