Date

Start Time

End Time

Weather

Noise level (dB(A)), 5 min⁺

Major Construction Noise Source(s) Observed

Other Noise Source(s) Observed

Remarks

Mean Temp. (°C)

Mean Wind Speed (m/s)

Noise Meter Model / ID

Calibrator Model / ID

Leq

L10

L90

01-Mar-10

22:27

22:32

Fine

59

60

58

excavation in process

-

22.1

<5 m/s

B&K 2238

B&K 4231

22:32

22:37

Fine

59

60

58

22:37

22:42

Fine

59

60

58

12-Mar-10

22:28

22:33

Fine

61

62

61

general tidy-up works by workers was undertaking

cargo transport, engine noise from barge anchored at nearby piers.

-

16.8

<5 m/s

B&K 2238

B&K 4231

22:33

22:38

Fine

62

63

61

22:38

22:43

Fine

62

63

61

18-Mar-10

22:27

22:32

Fine

64

65

63

excavation in process

traffic noise from nearby piers

-

20.9

<5 m/s

B&K 2238

B&K 4231

22:32

22:37

Fine

64

65

63

22:37

22:42

Fine

64

65

63

24-Mar-10

22:35

22:40

Fine

67

68

67

excavation in process

chiller located at rooftop of Customs' Marine Base (which is not operating during the past measurement); traffic noise from aircrafts passing by and nearby piers

-

24.4

<5 m/s

B&K 2238

B&K 4231

22:40

22:45

Fine

67

68

66

22:45

22:50

Fine

67

68

66

30-Mar-10

22:40

22:45

Fine

65

66

64

excavation in process

traffic noise from aircrafts passing by and nearby piers

-

19

<5 m/s

B&K 2238

B&K 4231

22:45

22:50

Fine

65

66

63

22:50

22:55

Fine

64

65

64