NOISE MONITORING DATA 2012 | CPCB ENVIS
Noise Monitoring Data
CHENNAI  -  2012
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
Eye Hospital (S) Standard Limit in Leq dB(A):Day 50, Night 40	61	47	63	49	63	50	63	51	62	51	63	52	63	52	63	52	63	53	63	53	63	52	58	60
Guindy (I) Standard Limit in Leq dB(A):Day 75, Night 70	73	68	74	69	75	70	76	70	76	71	76	72	77	72	76	72	76	72	76	71	75	71	75	71
Perambur (C) Standard Limit in Leq dB(A):Day 65, Night 55	68	57	69	57	69	57	69	58	68	58	68	59	68	59	69	59	68	58	68	57	72	61	68	57
T Nagar (C) Standard Limit in Leq dB(A):Day 65, Night 55	73	61	73	61	73	61	73	61	73	62	73	64	73	63	73	63	73	63	73	62	73	62	74	62
Triplicane (R) Standard Limit in Leq dB(A):Day 55, Night 45	68	56	67	55	67	56	67	56	67	56	68	57	67	56	68	56	68	56	68	57	68	56	68	58