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
01/04/2025	07:00-23:00	45	42
01/04/2025	23:00-07:00	---	---
02/04/2025	07:00-23:00	57	57
02/04/2025	23:00-07:00	---	---
03/04/2025	07:00-23:00	---	---
03/04/2025	23:00-07:00	---	---
04/04/2025	07:00-23:00	43	39
04/04/2025	23:00-07:00	45	43
05/04/2025	07:00-23:00	49	47
05/04/2025	23:00-07:00	47	43
06/04/2025	07:00-23:00	55	49
06/04/2025	23:00-07:00	40	40
07/04/2025	07:00-23:00	40	39
07/04/2025	23:00-07:00	34	34
08/04/2025	07:00-23:00	---	---
08/04/2025	23:00-07:00	---	---
09/04/2025	07:00-23:00	---	---
09/04/2025	23:00-07:00	---	---
10/04/2025	07:00-23:00	58	52
10/04/2025	23:00-07:00	49	48
11/04/2025	07:00-23:00	50	46
11/04/2025	23:00-07:00	---	---
12/04/2025	07:00-23:00	49	45
12/04/2025	23:00-07:00	40	38
13/04/2025	07:00-23:00	50	45
13/04/2025	23:00-07:00	---	---
14/04/2025	07:00-23:00	25	25
14/04/2025	23:00-07:00	45	45
15/04/2025	07:00-23:00	---	---
15/04/2025	23:00-07:00	---	---
16/04/2025	07:00-23:00	35	35
16/04/2025	23:00-07:00	---	---
17/04/2025	07:00-23:00	53	52
17/04/2025	23:00-07:00	49	49
18/04/2025	07:00-23:00	47	43
18/04/2025	23:00-07:00	---	---
19/04/2025	07:00-23:00	39	39
19/04/2025	23:00-07:00	---	---
20/04/2025	07:00-23:00	45	43
20/04/2025	23:00-07:00	33	33
21/04/2025	07:00-23:00	51	47
21/04/2025	23:00-07:00	40	40
22/04/2025	07:00-23:00	49	45
22/04/2025	23:00-07:00	41	41
23/04/2025	07:00-23:00	50	45
23/04/2025	23:00-07:00	---	---
24/04/2025	07:00-23:00	---	---
24/04/2025	23:00-07:00	41	38
25/04/2025	07:00-23:00	---	---
25/04/2025	23:00-07:00	49	49
26/04/2025	07:00-23:00	---	---
26/04/2025	23:00-07:00	33	31
27/04/2025	07:00-23:00	47	44
27/04/2025	23:00-07:00	49	47
28/04/2025	07:00-23:00	49	46
28/04/2025	23:00-07:00	43	43
29/04/2025	07:00-23:00	34	34
29/04/2025	23:00-07:00	45	43
30/04/2025	07:00-23:00	53	50
30/04/2025	23:00-07:00	---	---

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
1/04/2025	07:00-19:00	45	45	35	35
1/04/2025	19:00-23:00	33	33	42	34
1/04/2025	23:00-07:00	42	42	44	41
2/04/2025	07:00-19:00	57	57	---	---
2/04/2025	19:00-23:00	---	---	37	30
2/04/2025	23:00-07:00	44	44	40	32
3/04/2025	07:00-19:00	---	---	28	28
3/04/2025	19:00-23:00	40	40	42	35
3/04/2025	23:00-07:00	---	---	39	32
4/04/2025	07:00-23:00	48	37	53	36
4/04/2025	23:00-07:00	45	41	41	38
5/04/2025	07:00-19:00	49	45	44	41
5/04/2025	19:00-23:00	42	38	42	33
5/04/2025	23:00-07:00	42	36	43	39
6/04/2025	07:00-23:00	58	41	51	35
6/04/2025	23:00-07:00	44	39	44	40
7/04/2025	07:00-19:00	40	40	38	35
7/04/2025	19:00-23:00	42	34	38	31
7/04/2025	23:00-07:00	35	34	36	27
8/04/2025	07:00-19:00	---	---	43	39
8/04/2025	19:00-23:00	32	31	38	32
8/04/2025	23:00-07:00	37	31	45	40
9/04/2025	07:00-19:00	---	---	35	34
9/04/2025	19:00-23:00	45	41	39	33
9/04/2025	23:00-07:00	40	37	33	27
10/04/2025	07:00-19:00	58	48	---	---
10/04/2025	19:00-23:00	47	37	43	33
10/04/2025	23:00-07:00	42	40	42	37
11/04/2025	07:00-19:00	50	40	36	36
11/04/2025	19:00-23:00	45	37	44	36
11/04/2025	23:00-07:00	37	34	45	38
12/04/2025	07:00-19:00	49	49	40	35
12/04/2025	19:00-23:00	41	36	39	34
12/04/2025	23:00-07:00	40	34	41	31
13/04/2025	07:00-23:00	38	36	42	34
13/04/2025	23:00-07:00	40	40	38	31
14/04/2025	07:00-19:00	25	25	---	---
14/04/2025	19:00-23:00	---	---	---	---
14/04/2025	23:00-07:00	45	36	40	33
15/04/2025	07:00-19:00	---	---	45	39
15/04/2025	19:00-23:00	---	---	45	36
15/04/2025	23:00-07:00	---	---	43	40
16/04/2025	07:00-19:00	---	---	40	37
16/04/2025	19:00-23:00	35	30	41	34
16/04/2025	23:00-07:00	---	---	39	35
17/04/2025	07:00-19:00	53	52	39	33
17/04/2025	19:00-23:00	44	35	45	35
17/04/2025	23:00-07:00	45	41	37	27
18/04/2025	07:00-23:00	49	43	55	39
18/04/2025	23:00-07:00	44	44	45	36
19/04/2025	07:00-23:00	39	39	46	46
19/04/2025	23:00-07:00	43	43	---	---
20/04/2025	07:00-23:00	53	43	40	33
20/04/2025	23:00-07:00	36	35	41	40
21/04/2025	07:00-23:00	51	45	36	35
21/04/2025	23:00-07:00	40	34	43	39
22/04/2025	07:00-19:00	49	41	41	35
22/04/2025	19:00-23:00	---	---	31	28
22/04/2025	23:00-07:00	44	41	41	36
23/04/2025	07:00-19:00	50	43	---	---
23/04/2025	19:00-23:00	30	30	---	---
23/04/2025	23:00-07:00	45	44	30	29
24/04/2025	07:00-19:00	---	---	32	26
24/04/2025	19:00-23:00	43	43	---	---
24/04/2025	23:00-07:00	45	39	45	37
25/04/2025	07:00-19:00	---	---	49	43
25/04/2025	19:00-23:00	32	32	48	34
25/04/2025	23:00-07:00	42	37	43	36
26/04/2025	07:00-19:00	---	---	44	36
26/04/2025	19:00-23:00	39	38	34	33
26/04/2025	23:00-07:00	45	35	45	35
27/04/2025	07:00-23:00	53	43	46	36
27/04/2025	23:00-07:00	45	40	38	38
28/04/2025	07:00-19:00	49	45	40	38
28/04/2025	19:00-23:00	---	---	---	---
28/04/2025	23:00-07:00	44	43	---	---
29/04/2025	07:00-19:00	34	34	45	40
29/04/2025	19:00-23:00	41	38	37	36
29/04/2025	23:00-07:00	45	40	---	---
30/04/2025	07:00-19:00	53	47	40	34
30/04/2025	19:00-23:00	43	37	38	31
30/04/2025	23:00-07:00	25	25	41	34

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).