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
1/8/2023	07:00-23:00	---	---
1/8/2023	23:00-07:00	45	45
2/8/2023	07:00-23:00	43	40
2/8/2023	23:00-07:00	24	24
3/8/2023	07:00-23:00	37	34
3/8/2023	23:00-07:00	42	37
4/8/2023	07:00-23:00	44	44
4/8/2023	23:00-07:00	40	37
5/8/2023	07:00-23:00	44	40
5/8/2023	23:00-07:00	---	---
6/8/2023	07:00-23:00	48	41
6/8/2023	23:00-07:00	---	---
7/8/2023	07:00-23:00	42	41
7/8/2023	23:00-07:00	---	---
8/8/2023	07:00-23:00	53	53
8/8/2023	23:00-07:00	44	43
9/8/2023	07:00-23:00	44	44
9/8/2023	23:00-07:00	26	26
10/8/2023	07:00-23:00	49	45
10/8/2023	23:00-07:00	48	45
11/8/2023	07:00-23:00	55	49
11/8/2023	23:00-07:00	39	39
12/8/2023	07:00-23:00	---	---
12/8/2023	23:00-07:00	---	---
13/8/2023	07:00-23:00	41	38
13/8/2023	23:00-07:00	40	37
14/8/2023	07:00-23:00	38	36
14/8/2023	23:00-07:00	34	34
15/8/2023	07:00-23:00	43	43
15/8/2023	23:00-07:00	---	---
16/8/2023	07:00-23:00	58	54
16/8/2023	23:00-07:00	43	41
17/8/2023	07:00-23:00	42	41
17/8/2023	23:00-07:00	---	---
18/8/2023	07:00-23:00	46	44
18/8/2023	23:00-07:00	---	---
19/8/2023	07:00-23:00	45	45
19/8/2023	23:00-07:00	---	---
20/8/2023	07:00-23:00	44	41
20/8/2023	23:00-07:00	---	---
21/8/2023	07:00-23:00	45	41
21/8/2023	23:00-07:00	32	32
22/8/2023	07:00-23:00	40	38
22/8/2023	23:00-07:00	44	42
23/8/2023	07:00-23:00	48	45
23/8/2023	23:00-07:00	44	44
24/8/2023	07:00-23:00	---	---
24/8/2023	23:00-07:00	46	44
25/8/2023	07:00-23:00	40	39
25/8/2023	23:00-07:00	44	44
26/8/2023	07:00-23:00	49	45
26/8/2023	23:00-07:00	40	38
27/8/2023	07:00-23:00	40	40
27/8/2023	23:00-07:00	---	---
28/8/2023	07:00-23:00	50	46
28/8/2023	23:00-07:00	---	---
29/8/2023	07:00-23:00	46	45
29/8/2023	23:00-07:00	---	---
30/8/2023	07:00-23:00	---	---
30/8/2023	23:00-07:00	---	---
31/8/2023	07:00-23:00	---	---
31/8/2023	23:00-07:00	48	48

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
01/08/2023	07:00-19:00	---	---	47	41
01/08/2023	19:00-23:00	34	34	43	37
01/08/2023	23:00-07:00	45	45	43	38
02/08/2023	07:00-19:00	43	43	45	39
02/08/2023	19:00-23:00	15	15	48	43
02/08/2023	23:00-07:00	34	30	45	39
03/08/2023	07:00-19:00	37	37	45	35
03/08/2023	19:00-23:00	31	27	41	36
03/08/2023	23:00-07:00	42	31	45	35
04/08/2023	07:00-19:00	44	44	47	40
04/08/2023	19:00-23:00	39	37	50	42
04/08/2023	23:00-07:00	41	30	45	37
05/08/2023	07:00-19:00	44	39	44	38
05/08/2023	19:00-23:00	39	31	53	40
05/08/2023	23:00-07:00	34	34	45	41
06/08/2023	07:00-23:00	50	34	52	37
06/08/2023	23:00-07:00	43	41	45	40
07/08/2023	07:00-19:00	42	41	48	41
07/08/2023	19:00-23:00	---	---	50	41
07/08/2023	23:00-07:00	---	---	45	37
08/08/2023	07:00-19:00	53	53	50	39
08/08/2023	19:00-23:00	---	---	50	39
08/08/2023	23:00-07:00	44	40	45	36
09/08/2023	07:00-19:00	44	44	48	40
09/08/2023	19:00-23:00	---	---	59	41
09/08/2023	23:00-07:00	45	38	44	38
10/08/2023	07:00-19:00	49	47	55	41
10/08/2023	19:00-23:00	39	36	48	42
10/08/2023	23:00-07:00	44	36	45	38
11/08/2023	07:00-19:00	40	40	51	40
11/08/2023	19:00-23:00	55	46	55	38
11/08/2023	23:00-07:00	41	38	45	39
12/08/2023	07:00-19:00	---	---	56	45
12/08/2023	19:00-23:00	32	32	56	55
12/08/2023	23:00-07:00	---	---	45	41
13/08/2023	07:00-23:00	38	38	55	43
13/08/2023	23:00-07:00	44	37	44	38
14/08/2023	07:00-19:00	38	38	51	43
14/08/2023	19:00-23:00	33	33	45	38
14/08/2023	23:00-07:00	42	38	45	43
15/08/2023	07:00-19:00	43	43	52	42
15/08/2023	19:00-23:00	---	---	44	37
15/08/2023	23:00-07:00	35	35	44	41
16/08/2023	07:00-19:00	58	49	49	38
16/08/2023	19:00-23:00	---	---	47	40
16/08/2023	23:00-07:00	45	42	44	38
17/08/2023	07:00-19:00	42	42	51	40
17/08/2023	19:00-23:00	40	40	47	41
17/08/2023	23:00-07:00	32	32	44	37
18/08/2023	07:00-19:00	46	43	45	39
18/08/2023	19:00-23:00	34	33	53	39
18/08/2023	23:00-07:00	24	24	45	40
19/08/2023	07:00-19:00	45	45	50	39
19/08/2023	19:00-23:00	---	---	46	40
19/08/2023	23:00-07:00	---	---	45	44
20/08/2023	07:00-23:00	53	41	48	38
20/08/2023	23:00-07:00	31	28	44	41
21/08/2023	07:00-19:00	45	37	51	39
21/08/2023	19:00-23:00	43	36	42	39
21/08/2023	23:00-07:00	45	35	45	37
22/08/2023	07:00-19:00	40	37	48	40
22/08/2023	19:00-23:00	---	---	48	36
22/08/2023	23:00-07:00	44	39	45	40
23/08/2023	07:00-19:00	48	48	47	38
23/08/2023	19:00-23:00	31	31	44	36
23/08/2023	23:00-07:00	45	37	45	37
24/08/2023	07:00-19:00	---	---	46	41
24/08/2023	19:00-23:00	---	---	46	39
24/08/2023	23:00-07:00	45	35	42	37
25/08/2023	07:00-19:00	40	39	46	40
25/08/2023	19:00-23:00	52	46	46	41
25/08/2023	23:00-07:00	44	38	45	41
26/08/2023	07:00-19:00	49	44	44	38
26/08/2023	19:00-23:00	45	39	45	37
26/08/2023	23:00-07:00	44	37	43	38
27/08/2023	07:00-23:00	46	41	52	37
27/08/2023	23:00-07:00	43	37	45	40
28/08/2023	07:00-19:00	50	45	41	33
28/08/2023	19:00-23:00	40	38	43	37
28/08/2023	23:00-07:00	32	32	44	36
29/08/2023	07:00-19:00	46	44	39	34
29/08/2023	19:00-23:00	---	---	41	35
29/08/2023	23:00-07:00	33	33	44	38
30/08/2023	07:00-19:00	---	---	38	33
30/08/2023	19:00-23:00	---	---	50	37
30/08/2023	23:00-07:00	---	---	45	40
31/08/2023	07:00-19:00	---	---	43	38
31/08/2023	19:00-23:00	37	37	41	33
31/08/2023	23:00-07:00	45	45	43	39

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).