Table 3.5        Summary of Supplementary Information (L10 & L90) Obtained during Baseline Noise Monitoring

Period

(Measurement Duration)

 

Monitoring Station

Supplementary Information

L10

L90

Mean

Max

Min

Mean

Max

Min

Daytime 0700-1900 hrs on normal weekdays (5 min)

NM 7

68.1

71.6

62.8

61.5

64.7

51.2

Evening-time 1900-2300 hrs on normal weekdays (5 min) and Holidays 0700-2300 hrs

(5 min)

65.6

70.9

59.2

59.4

64.7

54.7

Night-time 2300-0700 hrs of the next day (5 min)

61.8

69.8

53.0

56.4

60.9

47.0