ABSTRACT
(Received in final form 16 June 1987)
This paper presents the pH and conductivity measurements for 90% of the precipitation events in Thessaloniki (Northern Greece) from October 1984 until April 1987.
Large pH variations ranging from 4.20 to 8.35 were recorded. In 25% of the cases the precipitation exhibited pH <5.0. In most cases the conductivity was between 10 and 20/μS · cm−1, although some precipitations with high conductivity were also observed.
In order to explain the pH and conductivity data, a correlation with air mass trajectories was attempted.
