Restricted Hours Noise Monitoring Results -- Night time

Station M5a, Chuk Lam Ming Tong

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

03-Apr-12

23:00

23:15

Fine

60

60

52

Works in tunnel

Traffic noise at San Wan Drive

N.A

24.5

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2656516

18-Apr-12

23:00

23:15

Fine

62

60

52

Works in tunnel

Traffic noise at San Wan Drive

N.A

22.0

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2656516

Min.

60

Max.

62