NOISE MONITORING DATA 2011 | CPCB ENVIS
Noise Monitoring Data
CHENNAI  -  2011
Months	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
Eye Hospital (S) Standard Limit in Leq dB(A):Day 50, Night 40	65	50	64	51	65	52	64	53	64	53	64	53	64	53	63	52	64	51	63	50	64	51
Guindy (I) Standard Limit in Leq dB(A):Day 75, Night 70	77	72	77	74	76	71	76	72	76	72	76	72	76	72	76	72	76	72	75	70	75	69
Perambur (C) Standard Limit in Leq dB(A):Day 65, Night 55	67	58	68	57	68	58	68	60	68	59	68	60	68	60	68	59	69	58	69	60	71	59
T Nagar (C) Standard Limit in Leq dB(A):Day 65, Night 55	73	61	72	61	72	61	72	63	73	64	73	62	73	63	73	62	74	62	73	61	72	60
Triplicane (R) Standard Limit in Leq dB(A):Day 55, Night 45	43	46	43	47	55	48	67	56	68	57	67	56	68	57	68	56	68	55	68	55	68	55