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)
1-Sep-09	10:08	56.7	59.1	60.7
7-Sep-09	10:24	65.3	66.5	69.5
12-Sep-09	9:50	55.7	58.8	57.2
18-Sep-09	9:29	79.6	77.7	78.1
24-Sep-09	9:24	79.5	79.1	81.6
30-Sep-09	14:15	70.5	72.3	71.2
			Min	55.7
			Max	81.6
				68.8
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)
1-Sep-09	9:55	54.7	56.8	58.2
7-Sep-09	10:10	66.0	66.8	64.9
12-Sep-09	9:38	59.6	61.5	64.0
18-Sep-09	9:11	78.5	75.1	74.2
24-Sep-09	9:10	77.0	80.2	75.3
30-Sep-09	14:03	66.3	68.1	69.2
			Min	54.7
			Max	80.2
				67.6