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
1/5/2023	07:00-23:00	41	38
1/5/2023	23:00-07:00	47	45
2/5/2023	07:00-23:00	---	---
2/5/2023	23:00-07:00	---	---
3/5/2023	07:00-23:00	---	---
3/5/2023	23:00-07:00	41	41
4/5/2023	07:00-23:00	---	---
4/5/2023	23:00-07:00	56	56
5/5/2023	07:00-23:00	---	---
5/5/2023	23:00-07:00	45	40
6/5/2023	07:00-23:00	49	47
6/5/2023	23:00-07:00	---	---
7/5/2023	07:00-23:00	48	46
7/5/2023	23:00-07:00	---	---
8/5/2023	07:00-23:00	55	53
8/5/2023	23:00-07:00	---	---
9/5/2023	07:00-23:00	45	45
9/5/2023	23:00-07:00	31	31
10/5/2023	07:00-23:00	41	40
10/5/2023	23:00-07:00	41	40
11/5/2023	07:00-23:00	54	50
11/5/2023	23:00-07:00	---	---
12/5/2023	07:00-23:00	43	42
12/5/2023	23:00-07:00	47	47
13/5/2023	07:00-23:00	57	53
13/5/2023	23:00-07:00	---	---
14/5/2023	07:00-23:00	51	47
14/5/2023	23:00-07:00	44	44
15/5/2023	07:00-23:00	46	46
15/5/2023	23:00-07:00	49	47
16/5/2023	07:00-23:00	---	---
16/5/2023	23:00-07:00	---	---
17/5/2023	07:00-23:00	45	42
17/5/2023	23:00-07:00	41	36
18/5/2023	07:00-23:00	---	---
18/5/2023	23:00-07:00	43	41
19/5/2023	07:00-23:00	57	55
19/5/2023	23:00-07:00	43	39
20/5/2023	07:00-23:00	---	---
20/5/2023	23:00-07:00	43	39
21/5/2023	07:00-23:00	51	49
21/5/2023	23:00-07:00	50	49
22/5/2023	07:00-23:00	53	48
22/5/2023	23:00-07:00	---	---
23/5/2023	07:00-23:00	53	50
23/5/2023	23:00-07:00	38	35
24/5/2023	07:00-23:00	---	---
24/5/2023	23:00-07:00	41	41
25/5/2023	07:00-23:00	---	---
25/5/2023	23:00-07:00	46	46
26/5/2023	07:00-23:00	55	55
26/5/2023	23:00-07:00	55	52
27/5/2023	07:00-23:00	46	42
27/5/2023	23:00-07:00	---	---
28/5/2023	07:00-23:00	49	46
28/5/2023	23:00-07:00	42	39
29/5/2023	07:00-23:00	51	48
29/5/2023	23:00-07:00	---	---
30/5/2023	07:00-23:00	---	---
30/5/2023	23:00-07:00	46	44
31/5/2023	07:00-23:00	49	45
31/5/2023	23:00-07:00	58	55

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
01/05/2023	07:00-19:00	59	37	39	36
01/05/2023	19:00-23:00	40	32	45	35
02/05/2023	23:00-07:00	---	---	51	51
02/05/2023	07:00-23:00	---	---	---	---
02/05/2023	23:00-07:00	39	39	32	32
03/05/2023	07:00-19:00	---	---	---	---
03/05/2023	19:00-23:00	---	---	34	28
03/05/2023	23:00-07:00	45	37	44	32
04/05/2023	07:00-19:00	---	---	41	35
04/05/2023	19:00-23:00	---	---	31	29
04/05/2023	23:00-07:00	42	37	38	32
05/05/2023	07:00-23:00	---	---	52	43
05/05/2023	23:00-07:00	---	---	39	33
05/05/2023	07:00-19:00	45	37	40	31
06/05/2023	19:00-23:00	---	---	49	47
06/05/2023	23:00-07:00	52	44	---	---
06/05/2023	07:00-23:00	---	---	43	31
07/05/2023	23:00-07:00	51	41	55	38
07/05/2023	07:00-23:00	37	32	29	29
08/05/2023	23:00-07:00	55	51	---	---
08/05/2023	07:00-23:00	---	---	48	48
08/05/2023	23:00-07:00	31	31	45	31
09/05/2023	07:00-23:00	45	45	42	42
09/05/2023	23:00-07:00	37	37	38	32
09/05/2023	07:00-19:00	36	32	40	34
10/05/2023	19:00-23:00	41	39	---	---
10/05/2023	23:00-07:00	33	33	37	29
10/05/2023	07:00-19:00	43	39	37	31
11/05/2023	19:00-23:00	54	50	26	26
11/05/2023	23:00-07:00	51	41	31	25
11/05/2023	07:00-19:00	45	40	39	34
12/05/2023	19:00-23:00	43	43	---	---
12/05/2023	23:00-07:00	41	41	49	47
12/05/2023	07:00-19:00	42	35	38	32
13/05/2023	19:00-23:00	57	48	---	---
13/05/2023	23:00-07:00	44	44	39	39
13/05/2023	07:00-19:00	34	34	---	---
14/05/2023	19:00-23:00	60	41	51	37
14/05/2023	23:00-07:00	44	44	41	34
15/05/2023	07:00-23:00	46	46	---	---
15/05/2023	23:00-07:00	37	30	---	---
15/05/2023	07:00-19:00	45	39	44	33
16/05/2023	19:00-23:00	61	61	35	35
16/05/2023	23:00-07:00	32	32	37	27
16/05/2023	07:00-19:00	42	38	44	38
17/05/2023	19:00-23:00	---	---	---	---
17/05/2023	23:00-07:00	51	45	42	40
17/05/2023	07:00-19:00	45	36	35	33
18/05/2023	19:00-23:00	---	---	---	---
18/05/2023	23:00-07:00	47	47	38	33
18/05/2023	07:00-19:00	44	40	41	33
19/05/2023	19:00-23:00	57	53	27	27
19/05/2023	23:00-07:00	42	40	33	26
19/05/2023	07:00-19:00	44	39	45	36
20/05/2023	19:00-23:00	---	---	29	29
20/05/2023	23:00-07:00	36	36	---	---
20/05/2023	07:00-19:00	44	38	42	37
21/05/2023	19:00-23:00	58	45	46	33
21/05/2023	23:00-07:00	44	37	38	31
22/05/2023	07:00-23:00	53	42	42	36
22/05/2023	23:00-07:00	---	---	47	41
22/05/2023	07:00-19:00	45	39	44	40
23/05/2023	19:00-23:00	53	53	47	43
23/05/2023	23:00-07:00	42	30	46	34
23/05/2023	07:00-19:00	43	34	45	36
24/05/2023	19:00-23:00	---	---	45	40
24/05/2023	23:00-07:00	---	---	43	38
24/05/2023	07:00-19:00	44	38	37	31
25/05/2023	19:00-23:00	---	---	41	41
25/05/2023	23:00-07:00	34	34	43	40
25/05/2023	07:00-19:00	44	42	39	32
26/05/2023	19:00-23:00	55	55	22	22
26/05/2023	23:00-07:00	37	37	44	38
27/05/2023	07:00-19:00	46	41	---	---
27/05/2023	19:00-23:00	---	---	---	---
27/05/2023	23:00-07:00	44	37	30	26
28/05/2023	07:00-19:00	54	40	37	37
28/05/2023	19:00-23:00	42	35	39	31
29/05/2023	23:00-07:00	51	47	---	---
29/05/2023	07:00-23:00	---	---	32	29
29/05/2023	23:00-07:00	45	45	43	35
31/05/2023	07:00-19:00	---	---	37	30
31/05/2023	19:00-23:00	---	---	40	37
31/05/2023	23:00-07:00	45	42	39	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).