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  • Title: [An evaluation of the toxic gas pollution in an open-pit mine].
    Author: Panev T, Dzharova V, Bobev G.
    Journal: Probl Khig; 1991; 16():119-26. PubMed ID: 1724564.
    Abstract:
    The present work aims at giving a complete characteristic of the toxic chemical factor in the working environment of a pit "Kremikovtsi", for evaluating the occupational risk for the engaged workers. The basic pollution sources of the pit are the eliminating toxic gases during work from different types of machines and heavy-freight vans. The already measured concentrations of carbon monoxide, carbon dioxide, nitric oxides, hydrocarbons, aldehydes and lead, manganese, ferrous and mercury aerosols in all working places of the pit are under MAC. The calculated total index of toxicity for all working places surpasses up to 3 times the unit and is rated. 1st degree--unfavourable conditions of work concerning the toxic chemical factor.
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