Analysis of main environmental components must be appropriate and useful for establishing decision-making elements regarding environment quality, the need for intervention and remediation in major cases, or improvements and development forecasting for local specific situations or subsequent climatic behaviour and composition transformation processes. In this respect, the usefulness of the information gathered from environmental analysis largely depends on how monitoring actions and environmental analysis (inspection and measurement) are planned. Pollutants discharged from use of various technological gases must be measured and analysed to avoid potential hazards and protect vital space and man against direct and indirect effects of noxae. To this end, the current paper aims to analyze certain internationally recommended methods for measuring and monitoring main gases which have negative impact upon the environment and human health, such as physicochemical analysis/evaluation/radiography of gases and dusts from the Jiu Valley urban area's atmosphere, trying to asses the state of the environment in this area.

Discomfort caused by noise is ever-present, having numerous physiological, psychological and social implications. One of the most important discomfort factors for personnel working in the processes of surface coal extraction is represented by noise. This paper examines how noise generated by the process of lignite extraction influences the working capacity of employees. The covering effect of voice or different sound and verbal signals, during work, leads to tiring efforts of attention, thus decreasing work efficiency. Because of microclimate conditions in lignite exploitation activity (heat, humidity, air flow, etc.) the effects of occupational noxae are felt more emphatically by personnel exposed to them. This fact fosters a decrease in working capacity by emergence of induced stress, a decrease in concentrated attention, coordination of professional technical movements and the ability of critical apprehension as a result of occupational stress. The current paper analyzes how the upgrade and refurbishment of bucket wheel excavators contributes to lowering exposure to noise. Refurbishment by replacing the control booths of bucket wheel excavators results in lowering occupational noise exposure by up to 10dB (A) for workers in lignite extractive industry.

The troubles generated by noise represent an issue, unanimously agreed by everybody, and this have numerous psychological and social implications.

Air quality monitoring involves a series of quantitative and qualitative observation and measurement of several air condition indicators, such as concentrations of air components. For this purpose, it is necessary to take several samples of air (gases, dusts, VOCs, physicochemical agents) with specialized equipment having the lowest measuring ranges, sometimes going up to ppt concentrations. At present, most environmental laboratories use individual equipment / analysers for each analysed environmental parameter or carry out sampling in an absorbent / adsorbent environment, and then analyse compounds in laboratories. The current paper presents the advantages of sampling / analysis of environmental compounds with the help of mobile environmental laboratories which allow in situ sampling and analysis of several air quality indicators and fast identification of polluted areas by simultaneous measurements of several samples and strategic and tactical decision making to confute pollution and prevent it. Having a mobile environmental laboratory is equivalent to using the latest concepts and methods of in-situ environmental parameter analysis technology to monitor environmental quality, securing the acquisition and processing of data but requiring specific knowledge in the field to transmit information as accurate and rapid as possible to the beneficiary or environmental authority.

Employers notified about working places under special conditions are required to develop Preventive and Protective Revised Plan, in order to ensure the improvement of workers safety and health protection, including specific measures and actions, so that those working places comply with the norms and operate under normal conditions by the late 31 December 2013. This paper considers some outcomes of the Nucleu Program PN 07450226 funded by Romanian National Authority for Research (ANCS) and developed during 2012-2013. The objective of this paper addresses the development of economically sustainable technical solutions for reducing the concentration of particulate matters and gases at their sources in power plants, in order to normalize the environmental conditions of special working places. During the first phase of the project, we identified dust and gas sources generated by machinery and equipment in working places with special conditions in Turceni and Deva power plants and also set the criteria and requirements for designing solutions to prevent and reduce these emissions, according to European practices in energy industry. Technical solutions envisage the development and application of effective projects for the abatement of various sources of dust and gas.