Daytime Noise Monitoring Results

Station M7, 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

19-Feb-10

09:21

09:51

Cloudy

58

59

55

N.A

N.A

N.A

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N: 2385180

25-Feb-10

10:29

10:59

Cloudy

60

62

57

N.A

N.A

N.A

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N: 2385180

03-Mar-10

13:20

13:50

Fine

64

65

57

N.A

Operation of backhoe near the Wah Yu House.(Contractor of HA)

N.A

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N: 2385180

09-Mar-10

15:14

15:44

Cloudy

63

65

59

Operation of Lorry

N.A

N.A

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N: 2385180

15-Mar-10

10:15

10:45

Fine

69

71

66

Operation of mobile crane and drilling machine

N.A

N.A

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N: 2385180

25-Mar-10

09:39

10:09

Cloudy

66

69

61

N.A

Operation of backhoe near the Wah Yu House.(Contractor of HA)

N.A

16.7

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N: 2385180

30-Mar-10

09:20

09:50

Cloudy

68

69

66

N.A

N.A

N.A

19

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N: 2385180

09-Apr-10

13:00

13:30

Cloudy

72

76

62

Operation of mobile crane and granding broing activities

N.A

N.A

19.3

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N: 2385180

14-Apr-10

13:30

14:00

Cloudy

64

67

60

Operation of Mobile crane

N.A

N.A

19.1

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N: 2385180

20-Apr-10

15:00

15:30

Cloudy

65

67

63

Operation of Mobile crane and pipe piling work

N.A

N.A

23.3

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N: 2385180

30-Apr-10

09:20

09:50

Sunny

61

62

60

Operation of Mobile crane and pipe piling work

N.A

N.A

21.3

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N: 2385180

03-May-10

13:00

13:30

Sunny

61.5

62.3

59.6

Operation of Mobile crane and pipe piling work

Celling water-proof construction at Wah Mei House and removal asbestos  at Wah Hong House

N.A

24.2

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N: 2385180

12-May-10

13:09

13:39

Sunny

61.0

62.9

58.6

Pipe piling work

Celling water-proof construction at Wah Mei House and removal asbestos  at Wah Hong House

N.A

24

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N: 2385180

18-May-10

09:15

09:45

Sunny

65.3

66.8

62.4

Pipe piling work

Repaving floor construction at Wah Ching House

N.A

27.3

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N: 2385180

28-May-10

09:40

10:10

Sunny

63.2

64.9

61.0

Pipe piling work

Repaving floor construction at Wah Cheung House

N.A

26.9

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N: 2385180

02-Jun-10

14:25

14:55

Cloudy

67.0

68.0

61.3

Pipe piling work

Repaving floor construction at Wah Cheung House

N.A

21.7

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N: 2385180

09-Jun-10

13:00

13:30

Cloudy

64.0

65.5

62.4

N.A

N.A

N.A

25.6

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N: 2385180

14-Jun-10

14:10

14:40

Cloudy

67.8

71.1

62.2

Pipe piling work

N.A

N.A

29.3

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N: 2385180

22-Jun-10

10:29

10:59

Cloudy

67.0

68.0

64.0

Pipe piling work

N.A

N.A

29.3

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N: 2385180

00:30

00:30

00:30

00:30

00:30

00:30

02-Jul-10

10:07

10:37

Sunny

59

60

57

N.A

N.A

N.A

30

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2385180

08-Jul-10

09:04

09:34

Sunny

65

68

61

Grouting works

Repaving floor construction at Wah Ching House

N.A

30.6

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2385180

13-Jul-10

11:03

11:33

Sunny

61

62

59

Operation of hydrulic excavator

Repaving floor construction at Wah Ching House

N.A

29.9

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2385180

20-Jul-10

09:19

09:49

Sunny

63

64

61

Operation of hydrulic excavator

N.A

N.A

29.5

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2385180

26-Jul-10

09:32

10:02

Sunny

63

64

60

Operation of hydrulic excavator

N.A

N.A

29.2

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2385180

05-Aug-10

09:45

10:15

Foggy

63

64

61

Excavation process

N.A

N.A

29.4

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2385180

Min.

59

Max.

68