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
1/6/2023	07:00-23:00	58	56
1/6/2023	23:00-07:00	---	---
2/6/2023	07:00-23:00	56	53
2/6/2023	23:00-07:00	49	49
3/6/2023	07:00-23:00	60	54
3/6/2023	23:00-07:00	---	---
4/6/2023	07:00-23:00	55	49
4/6/2023	23:00-07:00	---	---
5/6/2023	07:00-23:00	29	29
5/6/2023	23:00-07:00	---	---
6/6/2023	07:00-23:00	30	30
6/6/2023	23:00-07:00	---	---
7/6/2023	07:00-23:00	---	---
7/6/2023	23:00-07:00	46	43
8/6/2023	07:00-23:00	58	58
8/6/2023	23:00-07:00	---	---
9/6/2023	07:00-23:00	49	48
9/6/2023	23:00-07:00	---	---
10/6/2023	07:00-23:00	39	39
10/6/2023	23:00-07:00	---	---
11/6/2023	07:00-23:00	47	43
11/6/2023	23:00-07:00	---	---
12/6/2023	07:00-23:00	44	44
12/6/2023	23:00-07:00	48	43
13/6/2023	07:00-23:00	52	49
13/6/2023	23:00-07:00	52	45
14/6/2023	07:00-23:00	---	---
14/6/2023	23:00-07:00	49	46
15/6/2023	07:00-23:00	56	54
15/6/2023	23:00-07:00	44	42
16/6/2023	07:00-23:00	45	42
16/6/2023	23:00-07:00	35	35
17/6/2023	07:00-23:00	57	52
17/6/2023	23:00-07:00	---	---
18/6/2023	07:00-23:00	40	37
18/6/2023	23:00-07:00	38	38
19/6/2023	07:00-23:00	42	42
19/6/2023	23:00-07:00	---	---
20/6/2023	07:00-23:00	53	51
20/6/2023	23:00-07:00	---	---
21/6/2023	07:00-23:00	48	48
21/6/2023	23:00-07:00	---	---
22/6/2023	07:00-23:00	---	---
22/6/2023	23:00-07:00	44	42
23/6/2023	07:00-23:00	---	---
23/6/2023	23:00-07:00	38	37
24/6/2023	07:00-23:00	---	---
24/6/2023	23:00-07:00	46	46
25/6/2023	07:00-23:00	43	43
25/6/2023	23:00-07:00	39	39
26/6/2023	07:00-23:00	36	36
26/6/2023	23:00-07:00	44	44
27/6/2023	07:00-23:00	37	37
27/6/2023	23:00-07:00	41	39
28/6/2023	07:00-23:00	55	52
28/6/2023	23:00-07:00	47	46
29/6/2023	07:00-23:00	47	47
29/6/2023	23:00-07:00	40	40
30/6/2023	07:00-23:00	54	51
30/6/2023	23:00-07:00	---	---

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
01/06/2023	07:00-19:00	58	43	44	44
01/06/2023	19:00-23:00	43	38	38	31
01/06/2023	23:00-07:00	43	33	42	35
02/06/2023	07:00-19:00	56	42	38	38
02/06/2023	19:00-23:00	39	33	---	---
02/06/2023	23:00-07:00	45	34	37	35
03/06/2023	07:00-19:00	60	45	32	32
03/06/2023	19:00-23:00	38	35	27	27
03/06/2023	23:00-07:00	44	35	39	39
04/06/2023	07:00-23:00	55	37	29	27
04/06/2023	23:00-07:00	45	44	39	39
05/06/2023	07:00-19:00	43	39	25	25
05/06/2023	19:00-23:00	37	34	26	26
05/06/2023	23:00-07:00	44	32	---	---
06/06/2023	07:00-19:00	43	37	---	---
06/06/2023	19:00-23:00	37	35	30	28
06/06/2023	23:00-07:00	42	30	36	33
07/06/2023	07:00-19:00	41	36	---	---
07/06/2023	19:00-23:00	42	34	---	---
07/06/2023	23:00-07:00	43	33	27	27
08/06/2023	07:00-19:00	58	43	---	---
08/06/2023	19:00-23:00	48	36	---	---
08/06/2023	23:00-07:00	44	34	34	34
09/06/2023	07:00-19:00	49	42	28	28
09/06/2023	19:00-23:00	48	35	36	36
09/06/2023	23:00-07:00	45	34	40	39
10/06/2023	07:00-19:00	45	39	---	---
10/06/2023	19:00-23:00	50	39	20	20
10/06/2023	23:00-07:00	43	31	39	37
11/06/2023	07:00-23:00	51	39	41	34
11/06/2023	23:00-07:00	44	36	43	41
12/06/2023	07:00-19:00	50	47	39	39
12/06/2023	19:00-23:00	49	41	---	---
12/06/2023	23:00-07:00	45	39	44	38
13/06/2023	07:00-19:00	54	44	---	---
13/06/2023	19:00-23:00	51	37	36	29
13/06/2023	23:00-07:00	45	37	43	36
14/06/2023	07:00-19:00	47	40	---	---
14/06/2023	19:00-23:00	47	35	27	27
14/06/2023	23:00-07:00	45	37	42	35
15/06/2023	07:00-19:00	56	45	---	---
15/06/2023	19:00-23:00	41	40	---	---
15/06/2023	23:00-07:00	45	39	38	34
16/06/2023	07:00-19:00	45	37	40	35
16/06/2023	19:00-23:00	45	40	---	---
16/06/2023	23:00-07:00	45	38	42	38
17/06/2023	07:00-19:00	57	43	52	43
17/06/2023	19:00-23:00	40	39	34	34
17/06/2023	23:00-07:00	43	39	39	38
18/06/2023	07:00-23:00	59	41	46	38
18/06/2023	23:00-07:00	45	37	41	35
19/06/2023	07:00-19:00	46	43	---	---
19/06/2023	19:00-23:00	47	39	---	---
19/06/2023	23:00-07:00	41	37	36	29
20/06/2023	07:00-19:00	53	46	48	47
20/06/2023	19:00-23:00	53	47	---	---
20/06/2023	23:00-07:00	43	35	42	38
21/06/2023	07:00-19:00	53	45	43	43
21/06/2023	19:00-23:00	49	43	---	---
21/06/2023	23:00-07:00	45	40	39	38
22/06/2023	07:00-23:00	49	41	36	32
22/06/2023	23:00-07:00	45	40	32	27
23/06/2023	07:00-19:00	51	41	---	---
23/06/2023	19:00-23:00	52	40	41	41
23/06/2023	23:00-07:00	42	36	42	42
24/06/2023	07:00-19:00	53	41	---	---
24/06/2023	19:00-23:00	54	40	---	---
24/06/2023	23:00-07:00	44	34	43	41
25/06/2023	07:00-23:00	56	40	46	38
25/06/2023	23:00-07:00	42	36	36	33
26/06/2023	07:00-19:00	48	43	---	---
26/06/2023	19:00-23:00	47	39	---	---
26/06/2023	23:00-07:00	45	39	38	30
27/06/2023	07:00-19:00	53	40	32	32
27/06/2023	19:00-23:00	49	37	---	---
27/06/2023	23:00-07:00	45	36	42	38
28/06/2023	07:00-19:00	55	44	---	---
28/06/2023	19:00-23:00	45	38	23	23
28/06/2023	23:00-07:00	45	37	40	37
29/06/2023	07:00-19:00	47	38	39	39
29/06/2023	19:00-23:00	44	36	---	---
29/06/2023	23:00-07:00	45	34	39	34
30/06/2023	07:00-19:00	54	39	40	36
30/06/2023	19:00-23:00	45	33	---	---
30/06/2023	23:00-07:00	45	36	37	35

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).