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

16/04/2014-a

22:45

22:50

Fine

53

56

50

Works in tunnel

Road traffic at San Wan Drive

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

22.1

<5

B&K 2238  S/N : 2684503

B&K 4231  S/N: 3004068

16/04/2014-b

22:50

22:55

Fine

63

64

50

22.1

<5

B&K 2238  S/N : 2684503

B&K 4231  S/N: 3004068

16/04/2014-c

22:55

23:00

Fine

51

52

50

22.1

<5

B&K 2238  S/N : 2684503

B&K 4231  S/N: 3004068

16-Apr-14

22:45

23:00

Fine

59

64

51

Works in tunnel

Road traffic at San Wan Drive

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

22.1

<5

B&K 2238  S/N : 2684503

B&K 4231  S/N: 3004068

Average

56

Minimum

51

Maximum

63