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-Feb-10

14:00

14:30

Fine

70

73

68

Major near site (ASD site), pilling, cutting, mobile cranes, excavation work DSD site (Marble Road)

Traffic noise

-

17

0.8

RION- NA27 (S/N 00201194)

RION - NC73 (S/N 10786708)

09-Feb-10

10:10

10:40

Fine

72

75

68

Major noise source from ASD site (the building demolition using excavator mounted with breaker) and DSD site (two cranes were working)

Traffic noise

-

20

0.5

RION- NA27 (S/N 00201194)

RION - NC73 (S/N 10786708)

17-Feb-10

13:10

13:40

Cloudy

66

69

64

No apparent noise, crane from HATS DSD site

Traffic noise

-

11

0.8

RION- NL31 (S/N 00410224)

RION - NC73 (S/N 10786708)

23-Feb-10

14:15

14:45

Fine

70

72

68

Mainly source from ASD site. No apparent noise, crane from HATS DSD site

Traffic noise

-

22

0.3

RION- NL31 (S/N 00410224)

RION - NC73 (S/N 10786708)