Daytime Noise Monitoring Results -- Normal weekday

Station M7a, Wah Ming House

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

08-Apr-11

09:26

09:56

Foggy

65

68

60

No major construction works

Repaving roof of Wah Kei House

N.A

23.1

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2656516

14-Apr-11

09:28

09:58

Fine

64

69

57

No major construction works

Operation of hand-held breaker on roof of Wah Kei House

N.A

24.1

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2656516

20-Apr-11

10:00

10:30

Fine

60

63

58

No major construction works

Operation of hand-held breaker on roof of Wah Kei House

N.A

21.8

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2656516

26-Apr-11

09:23

09:53

Sunny

62

62

57

No major construction works

Welding  on roof of Wah Kei House

N.A

24.2

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2656516

Min.

60

Max.

65