Impact Air Quality Monitoring Results
1-hour TSP Monitoring Results at Station CA1 (Po Shan Mansions)
Date	Start	1st Hour	2nd Hour	3rd Hour
	Time	Conc.	Conc.	Conc.
	(hh:mm)	(µg/m3)	(µg/m3)	(µg/m3)
2-Apr-09	9:29	70.3	72.0	69.5
8-Apr-09	10:20	85.0	83.5	85.9
14-Apr-09	14:06	74.4	73.5	75.2
20-Apr-09	13:43	80.6	75.1	72.5
25-Apr-09	10:04	74.4	70.7	70.3
30-Apr-09	13:51	82.8	77.7	82.0
			Min	69.5
			Max	85.9
				76.4
1-hour TSP Monitoring Results at Station CA2 (Hamilton Court)
Date	Start	1st Hour	2nd Hour	3rd Hour
	Time	Conc.	Conc.	Conc.
	(hh:mm)	(µg/m3)	(µg/m3)	(µg/m3)
2-Apr-09	9:51	71.6	70.6	69.2
8-Apr-09	10:09	83.3	80.4	78.9
14-Apr-09	13:50	73.8	72.0	72.3
20-Apr-09	13:28	73.1	67.6	71.7
25-Apr-09	9:51	70.7	69.0	68.2
30-Apr-09	13:40	73.8	75.0	76.7
			Min	67.6
			Max	83.3
				73.2