Daytime Noise Monitoring Results

Station M3, Kwa Yick Building

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

30-Dec-09

16:15

16:45

Cloudy

71

74

72

Breaker, Excavator work

Traffic noise

N.A

<5

RION-NA27     S/N: 00201194

RION-NC73     S/N: 10786708

04-Jan-10

08:40

09:10

Sunny

67

69

69

Mobile were working. Cutting stell bouding

Traffic noise

N.A

<5

RION-NA27     S/N: 00201194

RION-NC73     S/N: 10786708

15-Jan-10

16:00

16:30

Sunny

68

71

70

Mobile were working.

Traffic noise

N.A

<5

RION-NA27     S/N: 00201194

RION-NC73     S/N: 10786708

27-Jan-10

15:00

15:30

Fine

67

70

69

Piling, cranes operation, excavation work

Traffic noise

N.A

<5

RION-NA27     S/N: 00201194

RION-NC73     S/N: 10786708

02-Feb-10

16:00

16:30

Fine

69

70

67

Mobile cranes, excavation works

Traffic noise

N.A

0.8

RION- NA27 (S/N 00201194)

RION - NC73 (S/N 10786708)

08-Feb-10

15:10

15:40

Fine

69

70

67

Mobile cranes

Traffic noise

N.A

1.2

RION- NA27 (S/N 00201194)

RION - NC73 (S/N 10786708)

18-Feb-10

11:00

11:30

Cloudy

68

70

66

Mobile cranes, excavator

Traffic noise

N.A

1.2

RION- NL31 (S/N 00410224)

RION - NC73 (S/N 10786708)

24-Feb-10

15:45

16:15

Fine

68

69

66

Mobile crane were working, Welding and excavation

Traffic noise

N.A

1.0

RION- NL31 (S/N 00410224)

RION - NC73 (S/N 10786708)

Min.

68

Max.

69