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This paper highlights the results of the assessment of operational risks related to the components of the dangerous goods transport chain. Due to the fact that multiple parties are involved in handling and transport procedures, numerous different risks may arise during activities involving dangerous goods. By identifying and assessing risks, the most critical ones are identified and evaluated according to the potential damage they may cause to the entire transport chain. The results of the risk assessment in the t...

Soil microelements play an essential role in plant nutrition and in the biochemical and physiological processes that influence crop growth, development, and productivity. Imbalances in the availability of micronutrients may lead to nutrient deficiencies, reduced fertilizer efficiency, and lower agricultural yields. This study aimed to evaluate the content of important soil microelements, such as zinc (Zn), copper (Cu), iron (Fe), and manganese (Mn), and to analyze their relationship with agricultural crop producti...

This study assesses surface water quality along the Sf. Gheorghe Branch of the Danube Delta (km 85-km 15) and adjacent control sectors, in order to assess the influence of both natural processes and anthropogenic pressures on aquatic environmental conditions. In situ measurements were performed at 97 stations during the June and September 2025 campaigns using a YSI EXO2 multiparameter probe. The monitored indicators were temperature, pH, dissolved oxygen, conductivity, total dissolved solids, salinity, turbidity, ...

The purpose of this study is to implement parts of the requirements of the European Green Deal in individual housing construction in Slovakia. The research methodology consisted of two parts: an analysis of selected building materials and a case study evaluating the possibilities for selecting materials with a more favourable carbon footprint. The building materials used for the construction of perimeter walls - YTONG, CLT panels, NOBASIL, and ISOVER - were evaluated based on their Global Warming Potential (GWP) v...

This article examines the mineral composition of the waters of important rivers in the Adjara region: the Chvana, Adjaristkali, Merisi, and Chorokhi. These rivers are part of the Black Sea basin and are used for drinking water supply, domestic needs, and agriculture, while the Adjara region is an important tourist destination. The study was conducted using an IGPE-9820 plasma atomic emission spectrometer. The concentrations of aluminum, boron, barium, beryllium, arsenic, calcium, cadmium, cobalt, chromium, copper,...

The aim of the study was to evaluate selected properties of fly ash and bottom ash produced after co-combustion of biomass (30%) and hard coal in a fluidized bed boiler. As part of the study, the pH of the test material was determined and its elemental composition was analyzed using X-ray fluorescence (XRF). Additionally, the ecotoxic properties of combustion by-products (CBPs) were assessed using an acute toxicity test on aqueous extracts (relative to the test plant: Lepidium sativum) and a standardized phytotoxi...

Insufficient investment activity in the Bulgarian forestry sector raises questions regarding the financial efficiency of potential forestry investment opportunities. The study estimates the financial efficiency and investment risk of creation a 4 ha plantation of Populus x canadensis cv. I-214 under Bulgarian conditions. The analysis is based on plantation model located within the territorial scope of the State Forestry Asenovgrad and assumes a 20-year rotation period. Financial efficiency is assessed by means of ...

Inadequate management of mining tailings represents a major environmental challenge in Latin America, particularly in mining districts where these deposits are often located near communities and water bodies, increasing the risk of environmental contamination. This study assesses the polluting potential of a community tailings dam located in the Zaruma–Portovelo mining district, one of the country’s most important gold-mining areas. Ten tailings samples were collected and subjected to physicochemical and miner...

This paper evaluates the potential of formation waters from mature oil fields of the Volga–Ural petroleum province as a source of valuable components. The study addresses the growing demand for strategic elements such as lithium, bromine, strontium, and rare earth elements, and the need to identify alternative resource bases. The research is based on a review and analysis of published geochemical data on produced waters from major oil fields, including Romashkinskoye, Orenburgskoye, and Arlanskoye. The concentra...

The Romanian electricity market has undergone substantial structural transformations during the last decade as a consequence of energy transition policies, increasing integration of renewable energy sources and geopolitical developments affecting European energy systems. The period between 2024 and 2025 represents a relevant timeframe for evaluating the evolution of electricity generation, consumption patterns and the balance between supply and demand within the national energy system. This study provides an asses...