NOISE

1. CONTINUOUS NOISE MONITORING DATA (OPERATION)

Site: Lamma Power Station Extension

Measurement Location: Ash Lagoon

Measurement Parameter: 30-min Leq (07:00-23:00 hrs and 23:00-07:00 hrs on next day)

NSR: Hung Shing Ye

Date	Time	Calculated Noise Level at NSR (dB(A))
		Max	Avg
1/12/2023	07:00-23:00	---	---
1/12/2023	23:00-07:00	34	34
2/12/2023	07:00-23:00	58	53
2/12/2023	23:00-07:00	45	45
3/12/2023	07:00-23:00	27	27
3/12/2023	23:00-07:00	---	---
4/12/2023	07:00-23:00	53	49
4/12/2023	23:00-07:00	46	43
5/12/2023	07:00-23:00	59	55
5/12/2023	23:00-07:00	55	52
6/12/2023	07:00-23:00	59	57
6/12/2023	23:00-07:00	45	43
7/12/2023	07:00-23:00	59	59
7/12/2023	23:00-07:00	44	44
8/12/2023	07:00-23:00	52	50
8/12/2023	23:00-07:00	45	45
9/12/2023	07:00-23:00	38	38
9/12/2023	23:00-07:00	30	30
10/12/2023	07:00-23:00	41	38
10/12/2023	23:00-07:00	42	40
11/12/2023	07:00-23:00	59	55
11/12/2023	23:00-07:00	41	41
12/12/2023	07:00-23:00	58	56
12/12/2023	23:00-07:00	36	36
13/12/2023	07:00-23:00	---	---
13/12/2023	23:00-07:00	---	---
14/12/2023	07:00-23:00	44	44
14/12/2023	23:00-07:00	45	43
15/12/2023	07:00-23:00	---	---
15/12/2023	23:00-07:00	---	---
16/12/2023	07:00-23:00	30	30
16/12/2023	23:00-07:00	---	---
17/12/2023	07:00-23:00	37	34
17/12/2023	23:00-07:00	45	44
18/12/2023	07:00-23:00	---	---
18/12/2023	23:00-07:00	48	45
19/12/2023	07:00-23:00	---	---
19/12/2023	23:00-07:00	---	---
20/12/2023	07:00-23:00	38	38
20/12/2023	23:00-07:00	46	40
21/12/2023	07:00-23:00	32	31
21/12/2023	23:00-07:00	42	38
22/12/2023	07:00-23:00	---	---
22/12/2023	23:00-07:00	36	36
23/12/2023	07:00-23:00	---	---
23/12/2023	23:00-07:00	37	35
24/12/2023	07:00-23:00	37	37
24/12/2023	23:00-07:00	---	---
25/12/2023	07:00-23:00	39	37
25/12/2023	23:00-07:00	31	29
26/12/2023	07:00-23:00	39	37
26/12/2023	23:00-07:00	46	44
27/12/2023	07:00-23:00	44	44
27/12/2023	23:00-07:00	---	---
28/12/2023	07:00-23:00	50	50
28/12/2023	23:00-07:00	---	---
29/12/2023	07:00-23:00	45	43
29/12/2023	23:00-07:00	25	25
30/12/2023	07:00-23:00	---	---
30/12/2023	23:00-07:00	---	---
31/12/2023	07:00-23:00	---	---
31/12/2023	23:00-07:00	33	33

Note: “---“ represents the measured noise monitoring data lower than the established notional background level/discarded under strong wind/ bird sound.

2. CONTINUOUS NOISE MONITORING DATA (CONSTRUCTION)

Site: Lamma Power Station Extension Construction

Measurement Location: Ash Lagoon and Ching Lam

Measurement Parameter: 30-min Leq (07:00-19:00 hrs on normal weekdays)

5-min Leq (07:00-23:00 hrs on holidays and 19:00-23:00 hrs on all other days, and 23:00-07:00 hrs of next day)

Date	Time	Calculated Noise Level at NSR at Long Tsai Tsuen/Hung Shing Ye (dB(A))		Calculated Noise Level at NSR at the school within Tai Wan San Tsuen (dB(A))
		Max	Avg	Max	Avg
01/12/2023	07:00-19:00	---	---	44	37
01/12/2023	19:00-23:00	---	---	45	41
01/12/2023	23:00-07:00	35	33	41	35
02/12/2023	07:00-19:00	62	54	41	37
02/12/2023	19:00-23:00	33	32	46	41
02/12/2023	23:00-07:00	45	45	45	40
03/12/2023	07:00-23:00	57	38	44	37
03/12/2023	23:00-07:00	---	---	44	40
04/12/2023	07:00-19:00	61	48	45	38
04/12/2023	19:00-23:00	36	36	42	36
04/12/2023	23:00-07:00	44	37	43	38
05/12/2023	07:00-19:00	64	56	44	37
05/12/2023	19:00-23:00	39	39	50	40
05/12/2023	23:00-07:00	45	41	43	38
06/12/2023	07:00-19:00	64	58	42	37
06/12/2023	19:00-23:00	---	---	50	37
06/12/2023	23:00-07:00	45	39	45	40
07/12/2023	07:00-19:00	61	60	---	---
07/12/2023	19:00-23:00	---	---	38	36
07/12/2023	23:00-07:00	44	41	45	42
08/12/2023	07:00-19:00	66	58	44	41
08/12/2023	19:00-23:00	---	---	46	43
08/12/2023	23:00-07:00	36	36	45	44
09/12/2023	07:00-19:00	60	49	33	32
09/12/2023	19:00-23:00	34	34	45	38
09/12/2023	23:00-07:00	33	31	42	35
10/12/2023	07:00-23:00	56	39	50	35
10/12/2023	23:00-07:00	44	38	45	38
11/12/2023	07:00-19:00	59	50	40	36
11/12/2023	19:00-23:00	34	34	39	35
11/12/2023	23:00-07:00	45	39	45	40
12/12/2023	07:00-19:00	58	54	41	40
12/12/2023	19:00-23:00	---	---	40	35
12/12/2023	23:00-07:00	43	38	37	32
13/12/2023	07:00-19:00	---	---	42	39
13/12/2023	19:00-23:00	38	33	41	34
13/12/2023	23:00-07:00	35	33	41	34
14/12/2023	07:00-19:00	44	44	38	34
14/12/2023	19:00-23:00	33	33	43	37
14/12/2023	23:00-07:00	42	38	44	37
15/12/2023	07:00-19:00	---	---	36	34
15/12/2023	19:00-23:00	---	---	41	37
15/12/2023	23:00-07:00	24	24	44	35
16/12/2023	07:00-19:00	---	---	38	34
16/12/2023	19:00-23:00	35	26	46	38
16/12/2023	23:00-07:00	35	29	44	33
17/12/2023	07:00-23:00	41	35	45	40
17/12/2023	23:00-07:00	45	42	44	37
18/12/2023	07:00-19:00	---	---	43	37
18/12/2023	19:00-23:00	---	---	45	38
18/12/2023	23:00-07:00	44	36	45	37
19/12/2023	07:00-19:00	---	---	45	42
19/12/2023	19:00-23:00	34	34	44	35
19/12/2023	23:00-07:00	39	36	35	32
20/12/2023	07:00-19:00	---	---	36	36
20/12/2023	19:00-23:00	40	36	39	32
20/12/2023	23:00-07:00	44	33	44	33
21/12/2023	07:00-19:00	---	---	44	38
21/12/2023	19:00-23:00	37	29	41	33
21/12/2023	23:00-07:00	44	35	45	32
22/12/2023	07:00-19:00	---	---	---	---
22/12/2023	19:00-23:00	42	39	34	34
22/12/2023	23:00-07:00	36	32	40	34
23/12/2023	07:00-19:00	---	---	35	34
23/12/2023	19:00-23:00	37	31	44	35
23/12/2023	23:00-07:00	37	30	40	31
24/12/2023	07:00-23:00	57	37	38	30
24/12/2023	23:00-07:00	34	33	39	33
25/12/2023	07:00-23:00	53	40	49	43
25/12/2023	23:00-07:00	37	31	44	38
26/12/2023	07:00-23:00	39	34	38	34
26/12/2023	23:00-07:00	44	43	44	34
27/12/2023	07:00-19:00	44	44	34	34
27/12/2023	19:00-23:00	35	35	34	29
27/12/2023	23:00-07:00	24	17	39	27
28/12/2023	07:00-19:00	50	50	39	37
28/12/2023	19:00-23:00	---	---	40	37
28/12/2023	23:00-07:00	15	15	34	17
29/12/2023	07:00-19:00	---	---	---	---
29/12/2023	19:00-23:00	45	42	51	41
29/12/2023	23:00-07:00	33	27	44	39
30/12/2023	07:00-19:00	---	---	44	29
30/12/2023	19:00-23:00	---	---	50	38
30/12/2023	23:00-07:00	32	26	41	34
31/12/2023	07:00-23:00	---	---	50	32
31/12/2023	23:00-07:00	39	33	45	33

Note:

a. “--- “ represents the measured noise monitoring data lower than the established notional background level/discarded under strong wind.

b. Continuous noise monitoring was also carried out at holidays & evening-time (07:00-23:00 hrs on holidays and 19:00-23:00 hrs on all other days) and night-time (23:00-07:00 hrs of next day).