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-May-13 08:00 07-May-13 08:00 Fine 2.7641 2.8274 5381.84 5405.84 24.00 1.1365 1.1365 1.1365 39 185.3 260 Operation of mobile crane Wah Fu 1469  
10-May-13 08:00 11-May-13 08:00 Cloudy 2.7351 2.7772 5405.84 5429.84 24.00 1.1305 1.1305 1.1305 26 185.3 260 Operation of mobile crane Wah Fu 1476  
16-May-13 08:00 17-May-13 08:00 Cloudy 2.7706 2.8257 5429.84 5453.84 24.00 1.1255 1.1255 1.1255 34 185.3 260 Operation of mobile crane Wah Fu 1484  
23-May-13 08:00 24-May-13 08:00 Cloudy 2.7789 2.8154 5453.84 5477.84 24.00 1.1286 1.1286 1.1286 22 185.3 260 Operation of mobile crane Wah Fu 1490  
28-May-13 08:00 29-May-13 08:00 Sunny 2.7425 2.7871 5477.85 5501.85 24.00 1.1246 1.1246 1.1246 28 185.3 260 Operation of mobile crane Wah Fu 1497  
                        Min. 22            
                        Max. 39            
                      Average 30