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The egg is an animal-derived food with remarkable nutritional value, providing a balanced intake of essential nutrients and high digestibility, making it suitable for all age groups. This study aims to analyze the impact of different hen-rearing systems on egg characteristics, including their mass, the proportion of components (egg white, yolk, shell), and the content of minerals and metals. To determine the quantity of metals in the various egg components (shell, egg white, yolk), the X-ray fluorescence (XRF) met...

In this work we present the particularities of three standing water NATURA 2000 habitats from southwestern section of Romania (Banat region). This study brings information about the current status of these three habitats and based on this appropriate management measures can be taken or reviewed. The studied habitats are: 3130 Oligotrophic to mesotrophic standing waters with vegetation of the Littorelletea uniflorae and/or Iso-to-Nanojuncetea, 3150 Natural eutrophic lakes with Magnopotamion or Hydrocharition and 31...

Analyzing fire debris is essential for identifying accelerants that may indicate arson. Detecting fire residues remains a significant analytical challenge due to the complexity of burned materials, the volatilization of key compounds, and the interference of pyrolysis byproducts. However, chromatographic separation techniques and mass spectral selectivity advancements provide promising avenues for improving detection accuracy and reliability. Recent developments in portable Gas chromatography-mass spectrometry (GC...

The aim of this work is to determine the concentration of heavy metals in a series of toys used by children and compare them with the regulations in force. The presence of heavy metals in plastic toys is a significant concern to potential health risk to children. Various studies have identified a range of heavy metals in toys including lead, cadmium, mercury, chromium, zinc and other metals which can pose serious health hazards if ingested or absorbed through the skin. Many additives and catalysts used in plastics...

The research investigates the impact of persistent organic pollutants, particularly pesticides, on the aquatic ecosystems of the Jiul de Est basin. Pesticides are introduced into water bodies via surface runoff, infiltration, and atmospheric deposition, and their bioavailability is influenced by factors such as pH, temperature, and dissolved organic matter. The research evaluates the ecotoxicological effects on key aquatic species, including Salmo trutta fario (river trout) and Squalius cephalus (common chub), by ...

Explosive phenomena represent one of the risks present within mining activities. These phenomena can have disastrous consequences on people, structures and the environment surrounding the mining site. In fact, the explosion uses a wave of pressure and heat that affects everything at the time the accident occurs. Different software were studied and developed by many researchers with the aim of simulate explosive effects in order to define the consequences might be on people and the environment, the development time...

The purpose of this research is to identify the existing environmental problems at the level of the analyzed region and to propose possible solutions to reduce these problems. The main methods used in the creation of the article are the documentary research carried out with the help of the secondary analysis of quantitative data within the Research Center "Business management and entrepreneurial development" within the University, as well as a questionnaire on the perception of residents on environmental pollution...

Specialization of production according to existing resources and the availability of sheep involves the use of new production systems, their readaptation to the demand for raw materials and the availability of feed resources. Depending on the existence of resources and the typology of sheep farms in the research area, production systems can be specialized for producing lamb, young sheep, and sheep reconditioned on pastures, and producing milk-meat in pastoral systems through the seasonal use of alpine pastures or ...

The aim of the study was to develop and validate analytical methods for the detection and quantification of arsenic species (As(III), DMA, MMA and As(V)) in different environmental matrices, including drinking water, surface water, groundwater, and sediments. The experimental tests were performed on a HPLC 1260 Infinity II coupled with an ICP-MS 7850 Agilent. For aqueous matrices, the method was validated within a working range of 10-50 microg/L using an Agilent G3154-65002 guard column and an Agilent G3154-65001 ...