Developing a participative management strategy for occupational health and safety risks

Annals of the University of Petroşani - Mining Engineering, vol. 11 (XXXVII), UNIVERSITAS Publishing House 11/2010;
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    ABSTRACT: To propose a cost-effective set of methods (strategy) to improve biomechanical working conditions and prevent the development of musculoskeletal disorders. The strategy was developed according to the philosophy already used for other aspects of working conditions. It was then tested in ten industrial situations with various characteristics, to check its understanding, its usability, and its efficiency. The strategy includes a five-page leaflet ( screening) aimed at motivating the operators to check the problems and bring about immediate solutions if possible. A stage-2 observation checklist is then proposed to guide the discussions during a meeting of the protagonists (workers and management). The assistance of an occupational health practitioner might become indispensable at stage 3 to deepen the analysis of the remaining problems, while experts are requested only in exceptional cases (stage 4, expertise). This strategy was positively judged by the users and proved to be effective in motivating and co-ordinating the protagonists. The strategy proved to consider effectively all biomechanical aspects that might contribute to the development of musculoskeletal disorders (MSDs). It proved also to be participatory, placing the operators and their management at the centre of the intervention as the main actors, and organising when to turn to an occupational health practitioner or an expert for assistance.
    International Archives of Occupational and Environmental Health 10/2002; 75(7):459-67. DOI:10.1007/s00420-002-0327-3 · 2.20 Impact Factor
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    ABSTRACT: In surface mineral workings, dust is potentially generated from a range of activities like site preparation, stockpiling, loading, transportation and mineral processing operations. Aggregate quarries are one of the largest extractive industrial sectors in UK. This project investigates the propensity of a limestone ore to generate dust due to handling and comminution processes. The dustiness of a limestone ore is assessed using the Warren Spring Laboratory rotating drum (HSE-WSL). The effect of the operating parameters of the WSL rotating drum to the dustiness of limestone is evaluated prior to testing. Preliminary testing on the effect of the operational parameters to the dustiness values showed that the consistency of the end results is closely related to them, thus they need to be carefully controlled. Also, control testing took place to identify the maximum dustiness value per operational parameter, so as to define an optimum set for the limestone sample. This testing procedure is compared with the HSL proposed testing procedure and their differences are quantified. The use of the optimum experimental protocol (OPT-TP) determined by preliminary testing yielded much higher dustiness values even though the initial mass of test material is less than the sample mass used in the HSL testing procedure (HSL-TP). A variety of different fractions is tested and the dustiness indices of the total dust and the health related fractions are determined. Different limestone fractions were found to exhibit different dustiness levels, whereas the concentration of fine material in the test sample is closely related to the dust yield. The airborne fraction was collected for particle size analysis. The dust particle size distributions and the cumulative percentages of volume concentrations below 10 and 2.5 μm were determined.Experimental conclusions proved that control over operational parameters of industrial processes (i.e. conveying of materials, stockpiling) such as the time scale of a process or the limestone mass could contribute to potentially lower levels of particulate matter. Also, lower concentrations of fine material within industrial processes could conclude to lower dust yield. The minimization of fine material could be achieved through optimization practices of the degradation—classification processes (comminution, sieving, etc.). Dustiness measurements and particle size analysis are valuable tools to the mining sector, legislative parties and occupational hygienists as they can assist the development of a correct dust assessment plan as well as mitigation methodologies, work practices and health and safety regulations.
    Chemical Engineering and Processing 12/2006; DOI:10.1016/j.cep.2006.11.005 · 1.96 Impact Factor
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    ABSTRACT: Wind flow over hilly terrain is simulated by solutions of the Reynolds-averaged Navier–Stokes equations without the hydrostatic approximation. The standard and RNG-based k–ε models are used together with wall functions to account for surface roughness. The numerical model uses finite-volume discretization and boundary-fitted coordinates to resolve the terrain. Simulations were made for flow at four sites, namely, Cooper's Ridge, Kettles Hill, Askervein Hill and Sirhowy Valley, for which field data are available. Comparisons with wind data show agreement with respect to the profiles of local wind magnitude and direction. The numerical model is therefore deemed suitable for reliable prediction of local-scale wind flow over hilly terrain with regions of flow separation.
    Journal of Wind Engineering and Industrial Aerodynamics 09/2000; 87(1-87):45-60. DOI:10.1016/S0167-6105(00)00014-3 · 1.70 Impact Factor

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May 20, 2014