摘要：In opencast mining use of explosives for excavation is common method to loosen overburden ranging from 20-45 meters. Noise beyond limits; interfere with communication in the work spot apart from annoyance and health hazard. Impact of noise on the environment depends on various factors such as intensity, distance from source, time of exposure and nature (impulse or continuous) the type of activities. The present study was carried out for a year in different season and during blasting. Noise levels were within limits, still recommendations are made for future safety.
关键词：Decibel; Noise levels; Lignite; Mining and blasts
