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))
Date	Time	Max	Avg
1/10/2023	07:00-23:00	---	---
1/10/2023	23:00-07:00	---	---
2/10/2023	07:00-23:00	28	28
2/10/2023	23:00-07:00	---	---
3/10/2023	07:00-23:00	53	53
3/10/2023	23:00-07:00	50	47
4/10/2023	07:00-23:00	45	44
4/10/2023	23:00-07:00	---	---
5/10/2023	07:00-23:00	---	---
5/10/2023	23:00-07:00	---	---
6/10/2023	07:00-23:00	---	---
6/10/2023	23:00-07:00	---	---
7/10/2023	07:00-23:00	31	28
7/10/2023	23:00-07:00	30	30
8/10/2023	07:00-23:00	48	42
8/10/2023	23:00-07:00	49	48
9/10/2023	07:00-23:00	44	40
9/10/2023	23:00-07:00	---	---
10/10/2023	07:00-23:00	---	---
10/10/2023	23:00-07:00	41	38
11/10/2023	07:00-23:00	---	---
11/10/2023	23:00-07:00	---	---
12/10/2023	07:00-23:00	45	45
12/10/2023	23:00-07:00	---	---
13/10/2023	07:00-23:00	46	46
13/10/2023	23:00-07:00	---	---
14/10/2023	07:00-23:00	54	53
14/10/2023	23:00-07:00	41	41
15/10/2023	07:00-23:00	40	40
15/10/2023	23:00-07:00	43	38
16/10/2023	07:00-23:00	---	---
16/10/2023	23:00-07:00	42	37
17/10/2023	07:00-23:00	32	32
17/10/2023	23:00-07:00	40	37
18/10/2023	07:00-23:00	---	---
18/10/2023	23:00-07:00	---	---
19/10/2023	07:00-23:00	---	---
19/10/2023	23:00-07:00	---	---
20/10/2023	07:00-23:00	58	58
20/10/2023	23:00-07:00	46	46
21/10/2023	07:00-23:00	---	---
21/10/2023	23:00-07:00	---	---
22/10/2023	07:00-23:00	---	---
22/10/2023	23:00-07:00	47	43
23/10/2023	07:00-23:00	41	41
23/10/2023	23:00-07:00	---	---
24/10/2023	07:00-23:00	55	55
24/10/2023	23:00-07:00	---	---
25/10/2023	07:00-23:00	51	51
25/10/2023	23:00-07:00	---	---
26/10/2023	07:00-23:00	---	---
26/10/2023	23:00-07:00	---	---
27/10/2023	07:00-23:00	51	48
27/10/2023	23:00-07:00	41	39
28/10/2023	07:00-23:00	43	43
28/10/2023	23:00-07:00	34	30
29/10/2023	07:00-23:00	46	43
29/10/2023	23:00-07:00	---	---
30/10/2023	07:00-23:00	55	55
30/10/2023	23:00-07:00	---	---
31/10/2023	07:00-23:00	50	50
31/10/2023	23:00-07:00	42	42

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

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))
Date	Time	Max	Avg	Max	Avg
01/10/2023	07:00-23:00	54	43	48	41
01/10/2023	23:00-07:00	31	31	45	43
02/10/2023	07:00-23:00	40	34	46	40
02/10/2023	23:00-07:00	14	14	45	41
03/10/2023	07:00-19:00	53	53	47	42
03/10/2023	19:00-23:00	41	41	42	37
03/10/2023	23:00-07:00	42	41	45	40
04/10/2023	07:00-19:00	45	44	44	42
04/10/2023	19:00-23:00	---	---	47	38
04/10/2023	23:00-07:00	---	---	44	39
05/10/2023	07:00-19:00	---	---	46	37
05/10/2023	19:00-23:00	---	---	44	40
05/10/2023	23:00-07:00	25	25	44	39
06/10/2023	07:00-19:00	---	---	50	40
06/10/2023	19:00-23:00	41	38	43	41
06/10/2023	23:00-07:00	33	30	45	43
07/10/2023	07:00-19:00	---	---	45	45
07/10/2023	19:00-23:00	38	31	45	38
07/10/2023	23:00-07:00	31	26	45	40
08/10/2023	07:00-23:00	50	40	46	38
08/10/2023	23:00-07:00	45	42	44	41
09/10/2023	07:00-19:00	44	38	46	39
09/10/2023	19:00-23:00	32	32	45	40
09/10/2023	23:00-07:00	32	29	44	38
10/10/2023	07:00-19:00	---	---	43	39
10/10/2023	19:00-23:00	---	---	42	37
10/10/2023	23:00-07:00	45	41	42	39
11/10/2023	07:00-19:00	---	---	45	39
11/10/2023	19:00-23:00	---	---	43	37
11/10/2023	23:00-07:00	45	29	44	40
12/10/2023	07:00-19:00	45	45	43	37
12/10/2023	19:00-23:00	---	---	44	34
12/10/2023	23:00-07:00	45	44	44	40
13/10/2023	07:00-19:00	46	46	44	37
13/10/2023	19:00-23:00	---	---	42	39
13/10/2023	23:00-07:00	44	31	44	38
14/10/2023	07:00-19:00	54	53	39	35
14/10/2023	19:00-23:00	33	33	48	41
14/10/2023	23:00-07:00	41	39	45	40
15/10/2023	07:00-23:00	48	38	45	37
15/10/2023	23:00-07:00	45	36	45	38
16/10/2023	07:00-19:00	---	---	42	37
16/10/2023	19:00-23:00	25	25	46	38
16/10/2023	23:00-07:00	45	36	45	38
17/10/2023	07:00-19:00	32	32	43	38
17/10/2023	19:00-23:00	40	38	45	31
17/10/2023	23:00-07:00	41	35	45	35
18/10/2023	07:00-19:00	---	---	43	34
18/10/2023	19:00-23:00	46	39	49	41
18/10/2023	23:00-07:00	33	26	45	42
19/10/2023	07:00-19:00	---	---	48	42
19/10/2023	19:00-23:00	27	24	46	38
19/10/2023	23:00-07:00	33	33	45	41
20/10/2023	07:00-19:00	58	58	45	42
20/10/2023	19:00-23:00	---	---	46	40
20/10/2023	23:00-07:00	---	---	45	42
21/10/2023	07:00-19:00	---	---	47	43
21/10/2023	19:00-23:00	---	---	52	41
21/10/2023	23:00-07:00	28	23	43	39
22/10/2023	07:00-23:00	41	37	47	39
22/10/2023	23:00-07:00	44	35	45	38
23/10/2023	07:00-19:00	41	41	46	40
23/10/2023	19:00-23:00	29	29	46	42
23/10/2023	23:00-07:00	38	36	44	37
24/10/2023	07:00-19:00	55	55	39	35
24/10/2023	19:00-23:00	29	29	41	33
24/10/2023	23:00-07:00	---	---	45	41
25/10/2023	07:00-19:00	51	51	46	37
25/10/2023	19:00-23:00	---	---	45	38
25/10/2023	23:00-07:00	39	30	45	40
26/10/2023	07:00-19:00	---	---	42	39
26/10/2023	19:00-23:00	---	---	44	41
26/10/2023	23:00-07:00	43	37	43	38
27/10/2023	07:00-19:00	51	45	44	40
27/10/2023	19:00-23:00	---	---	43	38
27/10/2023	23:00-07:00	41	39	45	41
28/10/2023	07:00-19:00	43	43	48	42
28/10/2023	19:00-23:00	32	32	45	40
28/10/2023	23:00-07:00	35	30	44	39
29/10/2023	07:00-23:00	46	37	49	40
29/10/2023	23:00-07:00	44	39	43	39
30/10/2023	07:00-19:00	55	55	47	43
30/10/2023	19:00-23:00	---	---	43	37
30/10/2023	23:00-07:00	29	26	45	40
31/10/2023	07:00-19:00	50	50	46	42
31/10/2023	19:00-23:00	35	32	48	38
31/10/2023	23:00-07:00	45	34	45	42

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).