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

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

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).