Daytime Noise Monitoring Results -- Normal weekday

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-Mar-12

14:00

14:30

Fine

62

65

57

Welding and operation of excavator

Road traffic noise

N.A

21.4

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2656516

15-Mar-12

13:39

14:09

Fine

63

65

59

Rock out

Road traffic noise

N.A

17.4

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2656516

19-Mar-12

11:12

11:42

Fine

73

75

67

Works inside the noise enclosure

Road traffic noise and breaking process in nearby building

N.A

20.9

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2656516

27-Mar-12

13:45

14:15

Sunny

63

65

59

Works inside the noise enclosure

Road traffic noise and breaking process in nearby building

N.A

20.5

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2656516

Min.

62

Max.

73