| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8124148 | International Journal of Coal Geology | 2010 | 7 Pages |
Abstract
âºProcedures to determine LHCs levels in the air of coal mines and in confined coal. âºStudy of five mines under operation (3 underground and 2 surface) in southern Brazil. âºMethane levels varying from 3 ppm to 27% in the underground mines. âºSurface mines presented narrow concentration range (3 ppm to 470 ppm). âºAmong LHCs methane is desorbed in higher concentrations from confined coals.
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Authors
Rosângela Silva, Marçal Pires, Carla M.N. Azevedo, Leandro Fagundes, Luciane Garavaglia, Cleber J.B. Gomes,