Evening time Noise Monitoring Results

Station M5, Chuk Lam Ming Tong(near entrance)

Date

Start Time

End Time

Weather

Noise level (dB(A))

Major Construction Noise Source(s) Observed

Other Noise Source(s) Observed

Remarks

Temp. (°C)

Wind Speed (m/s)

Noise Meter Model / ID

Calibrator Model / ID

Leq

L10

L90

20/03/2014-a

22:45

22:50

Fine

62

64

51

Works in tunnel

Road traffic at San Wan Drive

According to contractor, general construction works was in process accordance to CNP.

21.5

<5

B&K 2238  S/N : 2684503

B&K 4231  S/N: 3004068

20/03/2014-b

22:50

22:55

Fine

60

63

50

21.5

<5

B&K 2238  S/N : 2684503

B&K 4231  S/N: 3004068

20/03/2014-c

22:55

23:00

Fine

62

65

52

21.5

<5

B&K 2238  S/N : 2684503

B&K 4231  S/N: 3004068

20-Mar-14

22:45

23:00

Fine

62

64

51

Works in tunnel

Road traffic at San Wan Drive

According to contractor, general construction works was in process accordance to CNP.

21.5

<5

B&K 2238  S/N : 2684503

B&K 4231  S/N: 3004068

Maximum

62

Minimum

60