Station CM_WF1a, The Wah Ming House                              
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  
06-Feb-13 12:22 07-Feb-13 12:22 Fine 2.7281 2.8502 4973.81 4997.81 24.00 1.1089 1.1089 1.1089 76 185.3 260 Operation of mobile crane Wah Fu 1365  
14-Feb-13 13:00 15-Feb-13 13:00 Fine 2.7049 2.7853 4997.81 5021.81 24.00 1.1406 1.1406 1.1406 49 185.3 260 Operation of mobile crane Wah Fu 1374  
20-Feb-13 08:00 21-Feb-13 08:00 Fine 2.7053 2.8367 5021.81 5045.81 24.00 1.1756 1.1756 1.1756 78 185.3 260 Operation of mobile crane Wah Fu 1379  
25-Feb-13 08:00 26-Feb-13 08:00 Sunny 2.7005 2.7898 5069.83 5093.83 24.00 1.1717 1.1717 1.1717 53 185.3 260 Operation of mobile crane Wah Fu 1386  
                        Min. 49            
                        Max. 78            
                      Average 64