Noise Monitoring Data 
KOLKATA  -  2013
Months January February March April May June July August September October November December
Stations Day Night Day Night Day Night Day Night Day Night Day Night Day Night Day Night Day Night Day Night Day Night Day Night
Gol Park (I) 65 61 65 60 63 58 63 58 66 63 65 60 70 67 70 68 71 70 72 70 72 69 70 66
Standard Limit in Leq dB(A):
Day 75, Night 70
New Market (C) 67 57 67 59 67 60 67 61 68 62 68 61 68 61 68 62 68 61 68 61 67 60 68 58
Standard Limit in Leq dB(A):
Day 65, Night 55
Patauli (R) 54 44 56 50 54 52 54 97 57 66 56 73 56   54   54   54   53   51 59
Standard Limit in Leq dB(A):
Day 55, Night 45
SSKM Hosp (S) 61 55 61 56 62 57 63 59 65 61 63 58 63 57 62 56 61 55 62 56 61 55 61 55
Standard Limit in Leq dB(A):
Day 50, Night 40
Head Quarter (C) 61 54 61 54 60 54 61 55 62 56 61 55 61 54 61 54 62 55 64 58 64 57 64 57
Standard Limit in Leq dB(A):
Day 65, Night 55