24-hour TSP Monitoring Results                        
                                     
Station CM_CB1a, The Arcade, Cyberport                        
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
02-Feb-12 08:19 03-Feb-12 08:19 Cloudy 2.7756 2.9097 3735.90 3759.90 24.00 1.2206 1.2206 1.2206 76 178.1 260 No major construction works Arcade 917
08-Feb-12 08:19 09-Feb-12 08:19 Cloudy 2.8048 2.9594 3759.90 3783.90 24.00 1.2264 1.2264 1.2264 88 178.1 260 Rock out Arcade 923
14-Feb-12 08:19 15-Feb-12 08:19 Hazy 2.7729 2.8871 3753.89 3777.89 24.00 1.2123 1.2123 1.2123 65 178.1 260 Drilling and grouting Arcade 931
20-Feb-12 08:19 21-Feb-12 08:19 Cloudy 2.7731 2.8748 3801.89 3825.89 24.00 1.1934 1.1934 1.1934 59 178.1 260 Drilling and rock bolt Arcade 937
24-Feb-12 08:19 25-Feb-12 08:19 Cloudy 2.7601 2.8323 3825.89 3849.89 24.00 1.1850 1.1850 1.1850 42 178.1 260 Drilling and rock bolt Arcade 945
                        Min.  42          
                        Max.  87.5          
                        Average  66.1