CHANGES in the STATE of the ENVIRONMENT
Observations of transboundary transfer of polluting substances in the atmospheric air and atmospheric precipitations were carried out at the meteorological stations Svityaz (Volyn Region) and Rava-Ruska (Lviv Region).
A content of sulphur dioxide and nitrogen dioxide was observed in the atmospheric air.
No values exceeding the maximum permissible concentrations as to annual average and
maximum concentrations were observed; only in Rava-Ruska did the maximum concentration of
nitrogen dioxide in diurnal average concentrations exceed the maximum permissible
concentration 1.6 times. There were 14 cases of diurnal average maximum permissible
concentrations being exceeded. No changes in transboundary transfer of impurities were
observed in the atmospheric air as compared to last year.
In comparison with the data of observations of 1997 as to transboundary transfer, a
decrease of pollutants was observed in atmospheric precipitations in 1998.