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

02-Sep-14

13:03

13:33

Sunny

62

65

56

No major construction works

Road traffic noise

N.A

29.4

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N:  3004068

10-Sep-14

13:07

13:37

Sunny

62

65

57

No major construction works

Road traffic noise

N.A

30

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N:  3004068

17-Sep-14

10:06

10:36

Fine

63

66

58

operation of excvator under the shaft

Road traffic noise

N.A

28.1

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N:  3004068

23-Sep-14

13:00

13:30

Fine

64

68

58

operation of excvator under the shaft, hand held drill

Road traffic noise

N.A

27.5

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N:  3004068

29-Sep-14

09:53

10:23

Sunny

62

65

58

Lifting

Road traffic noise

N.A

29.3

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N:  3004068

Max

64

Min

62

Average

63