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Dust sampling equipment exhibits significant variations over time depending on the operating principle, being influenced by interaction of environmental factors, such as air flow velocity, relative humidity, ambient temperature and barometric pressure. The objective of this study is to perform a comprehensive comparative evaluation between the gravimetric reference method and the optical method for determining PM10 particles in ambient air. In order to allow the evaluation of each observation in relation to method...

Environmental pollution with microplastics is a global concern, accompanied by a large body of research primarily focused on aquatic environments. Microplastic contamination has a considerable impact on both the biological diversity of aquatic ecosystems and human health. In this context, the present paper provides an overview of technologies and measures aimed at reducing the presence of microplastics in surface waters, emphasizing two complementary approaches: the removal of microplastics from transfer pathways ...

The assessment of the influence of economic activities on the population in the eastern region of the Jiu Valley (located in the south-western part of Romania) entails several stages. These include measuring the extent of air pollution, selecting a tool for evaluating air quality, and most importantly, implementing a method for estimating the environmental impact. The objective of the study is to analyze the environmental conditions by analyzing the data collected from the six designated locations and utilizing th...

Since ancient times, chromium oxide was used 2000 years ago by the Chinese to cover the tips of weapons and later, as late as 1988, hexavalent chromium was discovered to be dangerous to humans. Currently, many companies carry out chrome plating of plastic parts, which consists in creating a superficial layer of diffusion, of an iron-chromium alloy with up to 10 - 20% chromium. Coating by electrolytic deposition is the most widely used method for creating protective layers for plastic materials and consists in elec...

One of the areas in Romania where the environment felt from human activities is Jiu Valley (Petrosani Depression), an area where the main activity was mining. This fact led to pollution of the area, pollution that affects both health of population and tourism, which is considered as a viable economic alternative. Investigation of environmental components, identification and analysis of impact sources on air and surface waters are the objective of this paper, which is a first step of a larger research, that will le...

The mobile environmental laboratory was located in a fuel distribution station located on a heavy traffic national road in Petro?ani City, Hunedoara County (Romania) to investigate dust and gas pollution, as well as dispersion of pollutants to nearby homes, using the AUSTAL VIEW software. Measurements were performed over a period of eight hours in two working days in order to better capture the movement of air masses and the dispersion of measured pollutants. In the event of accidental spills of chemicals or chemi...

Soil and groundwater resources are natural resources of high ecological value, their protection against chemical degradation and pollution being of major interest and requesting a new methodology based on risk instruments. The need to implement methods for qualitative and quantitative assessment of ecotoxicological risk resides in objective assessment of effects pollutants have on ecosystems, to limit the transfer of xenobiotics to lower and upper levels of the food chain. In this sense, the team of the Environmen...

Usually, only a part of the work capacity is spent in the professional activity, being materialized as products and services made/accomplished within the work process. However, there are also instances, in extreme cases, when total work capacity needs to be engaged, thus an important body reserve being used. Work capacity is represented by the totality of an individual’s (physical, mental, intellectual) possibilities to perform a useful activity at an optimal level of intensity and efficiency. One of the most impo...

Waste is not only an environmental problem, but an economic loss because Romania recycles only a small part of municipal waste. The use of atmospheric pollutant dispersion models has become necessary due to cost-efficiency reasons, given the limitation of fixed measuring points/stations for these pollutants. The paper studies the dispersion of PM10 dust particle pollution in the landfill?s area of influence, depending on wind direction and speed. Simulations are based on measurements of suspended particles, carrie...

Urban noise is affecting an increasing number of people and this is why it is becoming a major environmental issue, being a known fact that it affects all human activities and constitutes a stress factor with negative effects on health. It can affect the population both physiologically and psychologically, having an influence on the elementary activities such as sleep, rest, study and communication. Noise in the environment - a harmful and unwanted sound from the outside - is spreading, both in duration and in geo...

When it comes to workplaces characterized by a high degree of hazard and liability, such as mine intervention and rescue in major risk environments the most important element is the convergence of the skills required by job and skills of the individual, this being the guarantee of successful vocational selection. Along with psychological selection, training / retraining and physical training in conditions as close as possible to the reality of future interventions, under the action of stress factors that cause neg...

Jiu Valley represents one of the most important areas for coal mining in Romania, thus industrial development has generated a high level of health and safety at work issues. At work places in mining industry, the staff of the woodworking workshops is exposed to various concentrations of dust, possibly leading, in time, to occupational illnesses. Thus, wood processed in mining unitsпїЅ workshops is utilized for temporary support of coal faces, wrapping underground mining, insulation dams, ventilation doors, etc. Th...