Appendix E Continuous Noise Monitoring Results for March 2023

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)

Noise Equipment: B&K 2250 sound level meters and B&K 4231 sound

Level calibrator

Lab. Calibration Date: B&K 2250 sound level meters - 21/10/2021 (Ash Lagoon)

03/09/2021 (Ching Lam)

B&K 4231 calibrator (17/10/2022)

Date	Time	Calculated Noise Level at NSR at Long Tsai Tsuen/Hung Shing Ye (dB(A))		Limit Noise Level (dB(A))	Calculated Noise Level at NSR at the school within Tai Wan San Tsuen (dB(A))		Limit Noise Level (dB(A))
		Max	Avg		Max	Avg
01/03/2023	07:00-19:00	---	---	75	---	---	70
01/03/2023	19:00-23:00	30	30	60	47	42	60
01/03/2023	23:00-07:00	40	37	45	30	30	45
02/03/2023	07:00-19:00	---	---	75	27	27	70
02/03/2023	19:00-23:00	---	---	60	---	---	60
02/03/2023	23:00-07:00	40	34	45	37	29	45
03/03/2023	07:00-19:00	---	---	75	---	---	70
03/03/2023	19:00-23:00	32	32	60	42	35	60
03/03/2023	23:00-07:00	37	37	45	41	34	45
04/03/2023	07:00-19:00	40	40	75	30	30	70
04/03/2023	19:00-23:00	---	---	60	42	39	60
04/03/2023	23:00-07:00	31	30	45	40	30	45
05/03/2023	07:00-23:00	47	37	60	41	35	60
05/03/2023	23:00-07:00	36	36	45	37	32	45
06/03/2023	07:00-19:00	---	---	75	32	32	70
06/03/2023	19:00-23:00	---	---	60	35	32	60
06/03/2023	23:00-07:00	44	34	45	42	36	45
07/03/2023	07:00-19:00	54	50	75	42	34	70
07/03/2023	19:00-23:00	50	41	60	41	37	60
07/03/2023	23:00-07:00	44	34	45	38	29	45
08/03/2023	07:00-19:00	51	45	75	---	---	70
08/03/2023	19:00-23:00	---	---	60	47	43	60
08/03/2023	23:00-07:00	44	37	45	36	29	45
09/03/2023	07:00-19:00	56	56	75	36	36	70
09/03/2023	19:00-23:00	---	---	60	46	42	60
09/03/2023	23:00-07:00	41	35	45	41	31	45
10/03/2023	07:00-19:00	---	---	75	---	---	70
10/03/2023	19:00-23:00	---	---	60	45	42	60
10/03/2023	23:00-07:00	45	33	45	41	33	45
11/03/2023	07:00-19:00	50	49	75	---	---	70
11/03/2023	19:00-23:00	---	---	60	27	27	60
11/03/2023	23:00-07:00	41	32	45	39	32	45
12/03/2023	07:00-23:00	60	44	60	48	40	60
12/03/2023	23:00-07:00	41	37	45	37	32	45
13/03/2023	07:00-19:00	---	---	75	---	---	70
13/03/2023	19:00-23:00	---	---	60	43	41	60
13/03/2023	23:00-07:00	41	34	45	39	30	45
14/03/2023	07:00-19:00	45	45	75	---	---	70
14/03/2023	19:00-23:00	40	40	60	---	---	60
14/03/2023	23:00-07:00	42	37	45	41	33	45
15/03/2023	07:00-19:00	50	46	75	---	---	70
15/03/2023	19:00-23:00	52	48	60	34	30	60
15/03/2023	23:00-07:00	45	40	45	37	31	45
16/03/2023	07:00-19:00	---	---	75	---	---	70
16/03/2023	19:00-23:00	---	---	60	45	43	60
16/03/2023	23:00-07:00	41	37	45	41	36	45
17/03/2023	07:00-19:00	---	---	75	38	37	70
17/03/2023	19:00-23:00	---	---	60	39	32	60
17/03/2023	23:00-07:00	43	36	45	40	31	45
18/03/2023	07:00-19:00	40	40	75	---	---	70
18/03/2023	19:00-23:00	36	36	60	49	38	60
18/03/2023	23:00-07:00	37	35	45	44	39	45
19/03/2023	07:00-23:00	48	35	60	49	33	60
19/03/2023	23:00-07:00	38	34	45	41	38	45
20/03/2023	07:00-19:00	---	---	75	---	---	70
20/03/2023	19:00-23:00	---	---	60	48	40	60
20/03/2023	23:00-07:00	39	38	45	42	37	45
21/03/2023	07:00-19:00	52	51	75	34	34	70
21/03/2023	19:00-23:00	---	---	60	31	28	60
21/03/2023	23:00-07:00	42	36	45	44	34	45
22/03/2023	07:00-19:00	---	---	75	54	54	70
22/03/2023	19:00-23:00	---	---	60	---	---	60
22/03/2023	23:00-07:00	43	37	45	40	32	45
23/03/2023	07:00-19:00	34	34	75	33	33	70
23/03/2023	19:00-23:00	---	---	60	29	27	60
23/03/2023	23:00-07:00	45	43	45	42	36	45
24/03/2023	07:00-19:00	52	52	75	31	29	70
24/03/2023	19:00-23:00	---	---	60	40	31	60
24/03/2023	23:00-07:00	44	39	45	44	40	45
25/03/2023	07:00-19:00	37	37	75	42	42	70
25/03/2023	19:00-23:00	49	34	60	44	35	60
25/03/2023	23:00-07:00	42	36	45	45	38	45
26/03/2023	07:00-23:00	51	41	60	53	44	60
26/03/2023	23:00-07:00	45	37	45	43	38	45
27/03/2023	07:00-19:00	---	---	75	---	---	70
27/03/2023	19:00-23:00	---	---	60	---	---	60
27/03/2023	23:00-07:00	---	---	45	---	---	45
28/03/2023	07:00-19:00	62	54	75	39	39	65
28/03/2023	19:00-23:00	---	---	60	48	46	60
28/03/2023	23:00-07:00	45	39	45	45	38	45
29/03/2023	07:00-19:00	46	42	75	42	42	65
29/03/2023	19:00-23:00	50	43	60	38	34	60
29/03/2023	23:00-07:00	39	36	45	39	33	45
30/03/2023	07:00-19:00	39	34	75	35	28	65
30/03/2023	19:00-23:00	---	---	60	39	37	60
30/03/2023	23:00-07:00	40	38	45	41	33	45
31/03/2023	07:00-19:00	48	42	75	40	35	65
31/03/2023	19:00-23:00	33	33	60	39	30	60
31/03/2023	23:00-07:00	45	40	45	44	37	45

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).