Conclusion
The environmental impact analysis has revealed hazardous levels of dust and noise prevailing at the various work spots in the mine. Implementation of environmental management plan has helped to reduce the dust and noise levels below the undesirable limits. Reduction of noise at source, interruption of noise in its path of propagation and protection of the receiver from high noise levels has further improved the working environment. Ground vibration was well within the limits at the time of EIA - Environmental Impact Assessment since proper blasting practices were being used. The humus-rich surface soil, scraped and removed from the surface, prior to opening of new pits, is conserved and is used for developing green belts on spoil dumps. As EIA and EMP have been made statutory requirements for starting new mining ventures as well as for existing mines, (at the time of renewal of mining plans) measures to prevent environmental degradation have become a subject of priority with the mine managements. Sequential Blasting Machine and Nonel Shock Tube Detonators would make it possible to exploit some of the rich mineral deposits which could not be mined otherwise due to environmental concerns. Apart from controlling the environmental degradation in the mine the EIA and EMP- Environment Management Plan have helped to improve the life of lots of people inhabiting nearby villages.