نتایج جستجو برای: lead mine

تعداد نتایج: 361945  

2005
T. Enqvist A. Mattila M. Vaittinen

A new type of cosmic-ray experiment is under construction in the Pyhäsalmi mine in the underground laboratory of the University of Oulu, Finland. It aims to study the composition of cosmic rays at and above the knee region. The experiment, called EMMA, will cover approximately 150 m of detector area. The array is capable of measuring the multiplicity and the lateral distribution of underground ...

Journal: :journal of mining and environment 2013
feridon ghadimi mohammad ghomi abdolmotaleb hajati

altogether 20 groundwater samples were collected around the lakan pb and zn mine in iran. samples were analyzed for 8 constituents including fe, pb, hg, mn, zn, cn, so4 and cl using standard method. the results show that the average concentrations of constituents were 0.01, 0.60, 0.10, 0.01, 0.40, 35, 0.01 and 5.95 mg/kg for fe, mn, pb, zn, hg, so4, cn and cl, respectively. the computed contami...

Journal: :health scope 0
mohammad jahangiri department of occupational hygiene, collage of health, hamadan university of medical sciences, hamadan, ir iran seyyed ali moussavi najarkola occupational and environmental health research center (oehrc), iranian petroleum industry health research institute (ipihri), petroleum industry health organization (piho), tehran, ir iran tahere gholami department of hygiene, fasa university of medical sciences, fasa, ir iran hassan mohammadpour department of occupational health, shahid beheshti university of medical sciences, tehran, ir iran abbas jahangiri department of industrial engineering, islamic azad university, arak branch, arak, ir iran ghasem hesam department of occupational health, school of public health, shahroud university of medical sciences, shahroud, ir iran

conclusions consistent reductions were observed for all wmsds disorders at the ninth month of the follow-up. it can be inferred that the use of practical and low-cost methods of engineering and administrative interventions together and monitoring the proper implementation of these interventions during a long time may achieve desired results in reducing musculoskeletal disorders in small scale a...

Journal: :Frontiers in Earth Science 2023

China holds large-scale lead–zinc mineral resources; however, mining activities often cause severe contamination by heavy metals. This study systemically assessed eight metals (Cu, Zn, Cd, Pb, Cr, Hg, Ni, and As) in mine tailings, soil, groundwater from 27 contaminated sites across China. Regarding 1% of the tailing samples were hazardous waste 20% class II non-hazardous waste. Zn Pb showed hig...

Journal: :International Journal of Environmental Research and Public Health 2011

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