Daytime Noise Monitoring Results

Station M5, Chuk Lam Ming Tong

Date

Start Time

End Time

Weather

Noise level (dB(A)), 30 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

05-Jun-13

09:59

10:29

Sunny

62.9

65.3

59.2

Operation of excavator and tunnel works

Road traffic noise and rock breaking in the adjcent building

N.A

26.8

<5

B&K 2238   S/N : 2381580

B&K 4231  S/N: 3003246

10-Jun-13

14:06

14:36

Cloudy

64.2

66.1

60.3

Operation of excavator and tunnel works

Road traffic noise and rock breaking in the adjcent building

N.A

28.6

<5

B&K 2238   S/N : 2381580

B&K 4231  S/N: 3003246

20-Jun-13

13:08

13:38

Sunny

63.8

66.0

59.5

Loading

Road traffic noise and rock breaking in the adjcent building

N.A

30.1

<5

B&K 2238   S/N : 2381580

B&K 4231  S/N: 3003246

26-Jun-13

09:46

10:16

Cloudy

63.5

65.0

58.8

Operatorion of excavator and welding

Road traffic noise and rock breaking in the adjcent building

N.A

29.7

<5

B&K 2238   S/N : 2381580

B&K 4231  S/N: 3003246

Min.

62.9

Max.

64.2