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

09-Dec-10

11:01

11:31

Sunny

69

71

65

Operation hand-held breakers

N.A

N.A

17.5

<5

ONO SOKKI  LA-5110  S/N: 72700154

ONO SOKKI  SC-2110  S/N: 00461

14-Dec-10

11:00

11:30

Foggy

71

73

67

Operation hand-held breakers Rock excavation

Construction works in Wah Hong House

N.A

21.8

<5

ONO SOKKI  LA-5110  S/N: 72700154

ONO SOKKI  SC-2110  S/N: 00461

22-Dec-10

13:24

13:54

Fine

63

64

59

Operation hand-held breakers Rock excavation

N.A

N.A

19.3

<5

ONO SOKKI  LA-5110  S/N: 72700154

ONO SOKKI  SC-2110  S/N: 00461

28-Dec-10

14:19

14:49

Fine

64

68

61

Maintenance work at the roof of Wah Ming House

N.A

N.A

15.4

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N: 2656516

Min.

63

Max.

71