24-hour TSP Monitoring Results
Station CM_WF1a, The Wah Ming House
Start		Finish		Weather	Filter Weight (g)		Elapsed Time Reading		Sampling Time	Flow Rate (m3/min)			TSP Conc.	Action Level	Limit Level	Observations / Remarks	Sampler	Filter
Date	Time	Date	Time		Initial	Final	Initial	Final	(hrs)	Initial	Final	Average	(µg/m3)	(µg/m3)	(µg/m3)		ID	ID
10-Apr-14	10:15:00	11-Apr-14	10:15	Cloudy	2.7555	2.8493	6792.33	6816.33	24.00	1.2719	1.2719	1.2719	51	185.3	260	Tunnel works	Wah Fu	1857
16-Apr-14	10:10:00	17-Apr-14	10:10	Fine	2.752	2.8274	6816.34	6840.34	24.00	1.2667	1.2667	1.2667	41	185.3	260	Tunnel works	Wah Fu	1878
22-Apr-14	12:46:00	23-Apr-14	12:46	Fine	2.7664	2.8586	6840.34	6864.34	24.00	1.2657	1.2657	1.2657	51	185.3	260	Tunnel works	Wah Fu	1892
28-Apr-14	13:43:00	29-Apr-14	13:43	Fine	2.7593	2.8414	6864.34	6888.34	24.00	1.2651	1.2651	1.2651	45	185.3	260	Tunnel works	Wah Fu	1893
30-Apr-14	12:44:00	01-May-14	12:44	Fine	2.7615	2.831	6888.34	6912.34	24.00	1.2679	1.2679	1.2679	38	185.3	260	Tunnel works	Wah Fu	1894
												Average	45
												Maximum	51
												Minimum	38
Remark: The 24-hr TSP monitoring at CM_WF1a was suspended and restored monitoring on 10 April 2014 due to the poor weather and HVS was temporary suspending for safety reason. The data of 1-hr TSP monitoring could be obtained because the 1-hr monitoring was using  Laser Particle Photometer and could be performed under safety condition.