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

03-May-12

09:53

10:23

Fine

66

68

63

Blasting

N.A

N.A

29.0

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2656516

09-May-12

13:58

14:28

Sunny

67

70

63

Rock out and loading

N.A

N.A

29.2

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2656516

15-May-12

09:55

10:25

Sunny

68

69

66

Drilling and loading

N.A

N.A

28.0

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2656516

23-May-12

09:53

10:23

Cloudy

65

66

64

Drilling and loading

N.A

N.A

25.7

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2656516

29-May-12

13:25

13:55

Fine

64

65

63

Drilling and loading

N.A

N.A

25.5

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2656516

Min.

64

Max.

68

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

03-May-12

09:53

10:23

Fine

66

68

63

Blasting

N.A

N.A

29

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2656516

09-May-12

13:58

14:28

Sunny

67

70

63

Rock out and loading

N.A

N.A

29.2

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2656516

15-May-12

09:55

10:25

Sunny

68

69

66

Drilling and loading

N.A

N.A

28

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2656516

23-May-12

09:53

10:23

Cloudy

65

66

64

Drilling and loading

N.A

N.A

25.7

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2656516

29-May-12

13:25

13:55

Fine

64

65

63

Drilling and loading

N.A

N.A

25.5

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2656516

Min.

64

Max.

68