In most cases, traffic pollution deposition is linear with regularities in its distribution in transect routes (canyon-type effect). The aim of this study is to identify different characteristics of heavy metal deposition on large roundabouts, which are open spaces atypical in terms of the characteristics of the air mass flow along road lanes. The study was conducted on four large roundabouts in Zielona Góra. The content of the selected elements in the tested soils was: Cd 0.54–1.22 mg·kg−1 d.m., Cu 3.60–29.3 mg·kg−1 d.m., Cr 2.17–4.63 mg·kg−1 d.m., Zn 26.6–89.9 mg·kg−1 d.m., Pb 10.9–75.4 mg·kg−1 d.m. The geo-accumulation index was also calculated. The threshold values for communication areas were not exceeded, and the content of the elements was generally comparable between the roundabouts. However, we found some differences within particular roundabouts.

In this paper characteristic of water supply system in Babimost, lubuskie province, was presented. Network of 22,9 km length supply about 4000 inhabitants. Model of system was prepared using EPANET software and calculation of parameters for different water demands was carried out. Results made possible to choose the best variant, to come to conclusions concerning exploitation and further analysis.

Mining activities that involve constructing slopes will increase the potential for slope problems, especially those related to the increased potential for rock slope failure. Therefore, an in-depth study of the stability of the slope is required to determine the ability of the slope to stay stable without reinforcement or to choose the type of reinforcement that best fit a slope if it has a significant potential for landslides. This research aims to obtain the safety factor value of the sandstone mine slopes in Sedau Village, whether or not they comply with the safety requirements. Bishop’s method is employed to analyze the slip surface. Data processing is one of the requirements in Slide 2D Software to analyze slope stability based on material strength. The results of the safety factor obtained based on the analysis using the Bishop Method and 2D Slides are 1.671.

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