The average MaxP, MaxL, MinL and leq levels at different locations of primary and secondary crusher were within the range of 110.9 to 121.2, 97.2 to 107.5, 97.3 to 102.6 and 87.6 to 105.4 dB(A) respectively. The highest Leq value was near the scalping screen. The Leq levels at the operator’s position of the primary and secondary crusher were 87.6 and 99.3 dB(A) respectively (Table1).