Citizens of the city of Sarajevo and of other industrial cities are faced with a record number of days of increased pollution. In the winter months, the city of Sarajevo faces a large number of days of pollution caused mainly by the use of fossil fuels in individual houses for heating purposes. The current situation can be changed by the massive use of energy from renewable sources such as solar energy. This paper aims to evaluate the potential of solar energy in the city of Sarajevo. The use of Geographic Information Systems (GIS) represents the most significant technological and conceptual approach to spatial data analysis. Using existing models for calculating incoming solar radiation integrated in the GRASS GIS and SAGA GIS software, we achieved the goal and calculated the results for solar energy potential in the city of Sarajevo and presented them for the specific settlements. The model was implemented on the basis of created Digital Elevation Model (DEM) from Google Earth – free datasets, using techniques to collect and convert data with different software. Comparative results of selected model research are evaluated using the collected solar irradiance values from the meteorological stations, other research results, and the solar energy potential estimated via the Photovoltaic GIS Information System (PVGIS).

Distribution of radionuclides depends on various factors, and milk processing into cheese is recommended as one of the significant measures of radiation protection during radioactive contamination of the environment. A total of 16 milk and 16 cheese (soft and hard) samples were examined using HPGe gamma‐ray spectrometry to obtain 137Cs and 40K activity concentrations. The Pearson's correlation coefficients between 137Cs and 40K were determined (0.73, 0.68, 0.19, −0.23), followed by determination of distribution of 137Cs and 40K from cow milk to two types of cheeses using food processing retention factors (0.07–0.34). Transfer of 137Cs obtained could serve a great purpose for predicting its distribution during cheesemaking.

Absorbed dose rate and natural radionuclide activity concentration measurements were performed to determine the elevation in natural radionuclides, primarily uranium, caused by use of the ammunition with depleted uranium during NATO strikes at targets in the municipality Hadzici in 1995. Assessment of the DU presence was based on the quantification of uranium/radium disequilibrium and statistical analysis of the obtained results compared with results from previous studies. Elevated levels of U with highU /Ra disequilibrium which were recorded at several points as well as the irregular distribution of activity concentrations of U and Ra along the two observed soil profiles implied the possible presence of DU. The obtained results pointed out on the possible use of described method for assessment of depleted uranium presence in soil at points at which the ammunition with DU had been used. The described method could be used together with methods for quantitativequalitative determination of DU.