Elemental analysis of water and sediments by external beam PIXE part 4. Aliakmon River, GreeceElemental analysis of water and sediments by external beam PIXE part 4. Aliakmon River, Greece Peer-Reviewed Journal Publication Δημοσίευση σε Περιοδικό με Κριτές 2015-12-021990enThe Aliakmon River originates in the North Western part of Greece, traverses the Western part of Macedonia, and discharges into the Thermaikos Bay in the North Aegean Sea. Proton induced X-ray emission (PIXE) method with external beam was used for the determination of the metallic elements in the waters and sediments of the Aliakmon River. the pH, dissolved oxygen, conductivity, and total phosphate and nitrate concentrations were also monitored in the water samples. Data collected for a 20-month period indicate that the Aliakmon River can be still considered as an unpolluted river.http://creativecommons.org/licenses/by/4.0/Chemistry and Ecology4265-83 Katsanos Anastasios Κατσανος Αναστασιος Mourkides G. A. Papadopoulou-Mourkidou, Euphemia Kakanis P. K. Taylor & Francis Proton induced X-ray emission Aliakmon River, Greece Sediment Water pollution Trace elements