Restricted Hours Noise Monitoring Results -- Night time

Station M8a, Near security room of Wah Lai House

Date

Start Time

End Time

Weather

Noise level (dB(A)), 5 min

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

22-Aug-13

23:00

23:15

Fine

66

69

61

Tunnel worls

Road Traffic noise from Shek Pai Wan Road and cars from residents of Wah Lai House

Major noise source -- road traffic noise.

29.2

<5

B&K 2238   S/N : 2381580

B&K 4231  S/N: 3004068

Min.

66.0

Max.

66.0