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Information × Registration Number 0219U101833, 0119U101990 , R & D reports Title Expert assessment of materials for the assessment of technically achievable levels of residual dusty air in underground workings at the "PershotravenskeMineGroup". Acceptance of acts of technically achievable levels of residual dusty air popup.stage_title Head Usov Oleh O., Registration Date 14-11-2019 Organization Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences of Ukraine popup.description2  The object of the study is air dust in underground workings. Purpose – to determine the admissible levels of dust content. Research methods – analysis of mining conditions, dust measurement results and regulatory documentation on dust load levels. As a result of the studies, it is determined that air dust levels are safe for pneumoconiosis. Product Description popup.authors popup.nrat_date 2020-04-02 Close