The spillages due to collisions related incidents involving the wagon tankers, which carrying hazardous materials (hazmat), can be followed by fires or explosions, presents a severe threat to the safety of residents and nearby buildings. In this study, ALOHA and PHAST was used to evaluate the level of thermal radiation at different distances from the place of accident. Discussed scenario analyze a leakage of kerosene from a tanker wagon, from different opening diameters, where is formed a pool fire. As an assumption for location of possible accident, parts of the railway where it can be expected a large number of people and vehicles were taken. For study area was chosen city of Niš, Serbia.

Anthropogenic activities like mining, the disposal of treated/untreated waste effluents containing toxic metals, and metal chelates from different industries and the indiscriminate use of heavy metals containing fertilizers and pesticides in agriculture deteriorate water quality by rendering serious environmental problems posing a threat to human health [1, 2] and aquatic biodiversity [3, 4].

Bees are insects of great importance to humanity and the living environment. Bees are the main pollinators and plants are dependent on them. Consequently, global food production is dependent on bees and their work. In order to have a healthy living environment, it is of great importance for humans to help bees to be as healthy and productive as possible. The relationship between humans and bees is more than 9000 years old, but beekeeping principles and tools invented more than 200 years ago are still in use. The new principle that taking momentum in the beekeeping industry is Precision Beekeeping (PB). This is an apiary management strategy based on the monitoring of individual honeybee colonies to minimize resource consumption, maximize the productivity of bees and improve the quality of the living environment. In this research, we analyze the state-of-the-art systems for Precision Beekeeping. We make a comparative analysis of commercial solutions for precision beekeeping, with the goal to understand and determine the impact of device features on honeybees and the living environment.

Management systems are powerful tool for helping an organization fulfill its goals. This paper deals with occupational health and safety management systems, which are among the most common systems. Choosing the right management system can often be very difficult. The reason for this is the fact that there is a variety of occupational health and safety management systems. ISO standard for OHS management systems should make this decision easier. Comparing the elements of OHS management systems’ structures indicate that there is a great similarity between these systems. Key words: occupational health and safety, management systems, standard

In the 20th century, the study of ecological risk took precedence over studies of other risk types, giving rise to a new scientific discipline within environmental science – ecological risk. This paper presents a structural scheme with basic guidelines to be used when defining risk in general as well as ecological risk. Ecological risk focuses on determining the cause-and-effect relationship between stressors, as hazard elements, and the occurrence of unwanted ecological effects. It is a complex process involving all factors leading to phenomena and conditions that threaten the environment. The paper discusses hazard elements in terms of natural hazard sources, such as floods, landslides, droughts, or earthquakes, whose occurrence causes undesirable environmental effects and which are considered to pose ecological risks. Such risks are defined as a logical interdependence of environmental hazard, vulnerability, and damage.