| Any regulations providing for the reclamation of mine lands should include not only surface mining but subsurface mining also. |
|
| Both coal mining and hard rock subsurface mining activities could be expected to produce emissions from the operation of vehicles and the exhaust of internal combustion engines. |
|
| Alternatives for minimizing or controlling ground-water quality or quantity problems related to subsurface mining activities are evaluated for their effectiveness. |
|
| Chemical pollution in the Western United States is primarily caused by the leaching of mill tailings and refuse piles associated with various mining activities, including subsurface mining. |
|
| The volumes of material would be considerably less in an in situ or modified in situ mining process than in either surface or subsurface mining processes. |
|
| The first approach aims at the large quantities of residual organic matter associated with high permeability in subsurface mining damage zones as geological filters to remove CO2 from flue gas |
|
| Subsurface mining does not leave highly visible scars upon the landscape, but it affects the environment in other ways. |
|
| Subsurface mining, although not as aesthetically damaging as surface mining, nevertheless is extremely instrumental in the pollution of the air and water. |
|
