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  
03-Jan-13 08:00 04-Jan-13 08:00 Fine 2.6549 2.8427 5155.44 5179.44 24.00 1.1203 1.1203 1.1203 116 178.1 260 Operation of excavator Arcade 1324  
09-Jan-13 08:00 10-Jan-13 08:00 Fine 2.7196 2.9234 5179.45 5203.45 24.00 1.1459 1.1459 1.1459 124 178.1 260 Operation of excavator Arcade 1331  
15-Jan-13 08:00 16-Jan-13 08:00 Fine 2.7407 2.7977 5203.46 5227.46 24.00 1.1473 1.1473 1.1473 35 178.1 260 Operation of excavator Arcade 1338  
21-Jan-13 08:00 22-Jan-13 08:00 Fine 2.7217 2.8293 5227.46 5251.46 24.00 1.0655 1.0655 1.0655 70 178.1 260 Operation of excavator Arcade 1339  
25-Jan-13 08:00 26-Jan-13 08:00 Fine Power supply failure Arcade 1353  
31-Jan-13 08:00 01-Feb-13 08:00 Fine 2.7315 2.8723 5259.88 5283.88 24.00 1.0692 1.0692 1.0692 91 178.1 260 Operation of excavator Arcade 1360  
                        Min.  35            
                        Max.  123.5            
                      Average  87.2