Mihaela Petrescu, Elena Bucur, Raluca Diodiu, Mihai Bratu, Agnes Serbanescu, Mona Barbu
Atmospheric deposition
Abstract:
The aim of this study was to determine the chemical composition of wet depositions
in two locations from urban and rural area near Bucharest from January to May 2017.
For all the samples, pH, conductivity, anions, cations and heavy metals were
determined. For anions (Cl-, NO3- and SO42-) and cations (Ca2+, K+, Mg2+, Na2+)
determination an ion chromatographic method was used. Heavy metals (Co, Cr, Cu,
Mn, Ni, Pb and Zn) were determined using AAS with flame and graphite chamber.
Results showed the presence of the interested compounds in wet depositions samples
with SO42- and Ca2+ as the dominant anion and cation. Heavy metals concentration
followed the trend: Zn > Mn > Cu > Pb > Ni > Cr > Co. Analysing the results obtained
the potential sources of ambient air pollution were also suggested.