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

04-Mar-10

10:25

10:55

Fine

63

65

60

Operation of hydraulic excavator and drum track

Road traffic noise.

N.A

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N: 2385180

12-Mar-10

13:46

14:16

Fine

65

67

60

Operation of hydraulic excavator and drum track

Road traffic noise.

N.A

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N: 2385180

19-Mar-10

10:02

10:32

Fine

67

69

62

Operation of hydraulic excavator and drum track

Road traffic noise.

N.A

21.2

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N: 2385180

22-Mar-10

14:15

14:45

Fine

69

71

66

Operation of hydraulic excavator and drum track

Road traffic noise.

N.A

21.5

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N: 2385180

31-Mar-10

13:30

14:00

Fine

67

70

64

Operation of mini-excavator and drum track

Road traffic noise.

N.A

21.6

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N: 2385180

Min.

63

Max.

69