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

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).