Impact Air Quality Monitoring Results
24-hour TSP Monitoring Results at Station CA1 (Po Shan Mansions)
Date	Filter Weight (g)		Flow Rate (m3/min.)		Elapse Time		Sampling	Conc.	Weather	Air	Atmospheric	Particulate	Av. flow	Total vol.
	Initial	Final	Initial	Final	Initial	Final	Time(hrs.)	(µg/m3)	Condition	Temp. (oC)	Pressure(hPa)	weight(g)	(m3/min)	(m3)
1-Apr-09	3.6383	3.8314	1.33	1.33	13774.28	13798.28	24.00	101.1	Cloudy	19.9	1019.9	0.1931	1.33	1910.9
7-Apr-09	3.6598	3.6890	1.34	1.34	13798.28	13822.28	24.00	15.2	Sunny	18.2	1016.5	0.0292	1.34	1925.3
14-Apr-09	3.5914	3.7378	1.34	1.34	13822.28	13846.28	24.00	75.8	Sunny	24.7	1007.9	0.1464	1.34	1931.0
18-Apr-09	3.6392	3.7398	1.33	1.33	13846.28	13870.28	24.00	52.4	Sunny	21.9	1009.6	0.1006	1.33	1921.0
24-Apr-09	3.6584	3.7755	1.33	1.33	13870.28	13894.28	24.00	61.1	Cloudy	22.8	1009.5	0.1171	1.33	1916.6
30-Apr-09	3.6231	3.6858	1.34	1.34	13894.28	13918.28	24.00	32.5	Sunny	22.7	1015.9	0.0627	1.34	1931.0
							Min	15.2
							Max	101.1
							Average	56.3
24-hour TSP Monitoring Results at Station CA2 (Hamilton Court)
Date	Filter Weight (g)		Flow Rate (m3/min.)		Elapse Time		Sampling	Conc.	Weather	Air	Atmospheric	Particulate	Av. flow	Total vol.
	Initial	Final	Initial	Final	Initial	Final	Time(hrs.)	(µg/m3)	Condition	Temp. (oC)	Pressure(hPa)	weight(g)	(m3/min)	(m3)
1-Apr-09	3.5622	3.7024	1.31	1.31	13518.90	13542.90	24.00	74.2	Cloudy	19.9	1019.9	0.1402	1.31	1890.7
7-Apr-09	3.6494	3.7356	1.32	1.32	13542.90	13566.90	24.00	45.2	Sunny	18.2	1016.5	0.0862	1.32	1906.6
14-Apr-09	3.5960	3.6752	1.33	1.33	13566.90	13590.90	24.00	41.4	Sunny	24.7	1007.9	0.0792	1.33	1910.9
18-Apr-09	3.6372	3.7770	1.33	1.33	13590.90	13614.90	24.00	73.2	Sunny	21.9	1009.6	0.1398	1.33	1910.9
24-Apr-09	3.6578	3.7010	1.33	1.33	13614.90	13638.90	24.00	22.6	Cloudy	22.8	1009.5	0.0432	1.33	1910.9
30-Apr-09	3.6275	3.7615	1.34	1.34	13638.90	13662.90	24.00	69.6	Cloudy	22.7	1015.9	0.1340	1.34	1925.3
							Min	22.6
							Max	74.2
							Average	54.4