[Dust and gas factors in extraction of polymetallic ore in Arctic conditions and their hygienic assessment]. / Pylevoi i gazovyi faktory pri dobyche polimetallicheskikh rud v usloviiakh Zapoliar'ia i ikh gigienicheskaia otsenka.
Med Tr Prom Ekol
; (7): 9-13, 1996.
Article
en Ru
| MEDLINE
| ID: mdl-8963597
ABSTRACT
Studies of drilling and blasting method of copper and nickel ores extraction at underground Transpolar mines proved that the highest concentrations of dust appeared during dry drilling of vertical blast holes, work of scraper windlass, fragmentation of out-size blocks, preparation of concrete mixture. Presence of aggressive metals, especially nickel, in the ore dust is a main base for planned thorough investigations of fibrogenic, toxic and carcinogenic effects of copper and nickel ore dust, for more precise assessment of its MAC in the air of workplace. Two-step purification of exhaust gases appearing due to mining diesel machines is not quite efficient, as the concentrations of nitrogen oxides (assessed through nitrogen dioxide) continually exceeded the MAC.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Emisiones de Vehículos
/
Salud Laboral
/
Clima Frío
/
Contaminantes Ocupacionales del Aire
/
Polvo
/
Metales
/
Minería
/
Enfermedades Profesionales
Aspecto:
Determinantes_sociais_saude
Límite:
Humans
País/Región como asunto:
Asia
Idioma:
Ru
Revista:
Med Tr Prom Ekol
Asunto de la revista:
MEDICINA OCUPACIONAL
Año:
1996
Tipo del documento:
Article