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.
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.
The troubles generated by noise represent an issue, unanimously agreed by everybody, and this have numerous psychological and social implications.
According to Directive 2010/75 / EU and Law 278/2013 on industrial emissions, operators of large combustion plants (IMA) must carry out continuous self-monitoring of pollutant emissions and are required to perform parallel measurements with accredited laboratories, to certify results. Thus, INCD INSEMEX Petroșani, through the Testing Laboratories Group, accredited by RENAR, offers these type services to various economic agents. The curent paper presents measurements performed at two IMA exhaust chimneys, in two different stages, to quantify pollutants released into the atmosphere and to establish the impact they generate on health of population in the area of the study. Analysis of results showed that the maximum allowed value for the SO2 was exceeded, so that, at the end of this paper, some recommendations were reviewed, according to BAT (Best Available Techniques), to support the economic agent and inhabitants of the area in haveing a cleaner environment.
The exploitation and processing of oil resources are factors of regional progress and development; in this regard, the final products resulting from exploitation and subsequent refining can be accidentally spilt on the ground destabilizing the relationships between flora, fauna, water and soil, generating irreversible effects on terrestrial and aquatic ecosystems. The impact of the effects generated by petroleum products on soil and water resources is limiting nature and imposes severe measures to restrict the resources used for economic, administrative and consumption purposes. Experimental research involves the usage of geostatistical methods for modelling the unsaturated area and the usage of specialized applications for estimating the dispersion of pollutants in the studied area based on an accidental pollution scenario. The application of the method used in the areas with a significant risk of contamination (oil fields) it aims to identify the movement of the contaminant at various times and concentrations in order to choose the best measures to reduce and minimize pollution of the unsaturated (vadose) zone. The objectives of the reduction and minimization measures are to limit the transfer of contaminants in the saturated area or to the strategic drinking water reserves. The applied method supports researchers, hydrologists, hydrogeologists, environmental engineers who want to deepen the transition elements of the pollutant in the unsaturated area, the phenomenology and dispersion of pollutants in waters located in the unsaturated area and the problems caused by pollutants on the environment.
Extractive industry has had and has negative effects on environmental factors. Limitation of industrial activities carried out in Jiu Valley, materialized by closure of mining units, brings to actuality the rehabilitation of areas occupied by constructions and surface utilities related to the technological process of underground coal extraction. First stage of surface rehabilitation and greening is the demolition of surface buildings by means of technical implosion / blasting or classic techniques. This stage generates a series of physicochemical pollutants that can have a significant impact on environmental factors. The main objective of the current paper is to identify pollutants and the negative effects they may have on human health as well as to reduce the environmental impact of materials from demolition operations. The paper has the advantage of quantifying waste resulting from demolitions in order to reduce impact on the environment by revalorizing the obtained materials (metal, concrete, wood, brick etc.) thus reducing the quantities of industrial waste to be stored. Thus, it is possible to plan the greening of areas affected by mining activities in the shortest possible time, correlated with the program of territorial systematization, in order to capitalize on new economic opportunities for use of these lands.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.