24-hour TSP Monitoring Results at Station SR77
(Yuen Leng 2)
Sampling Date Wt. of paper (g) Elapse Time Flow Rate (CFM) Total Volume
(m³)		 TSP Concentration
(¦Ìg/m3)		 Weather
Initial Wt. Final Wt. Wt. of dust Initial Final Sampling Hour Initial Final Avg Flow Rate
2019-08-07 - - - - - - - - - - 101.3 Fine
2019-08-13 - - - - - - - - - - 82.5 Fine
2019-08-19 - - - - - - - - - - 103.1 Fine
2019-08-23 - - - - - - - - - - 108.7 Fine
2019-08-29                     74.7 Cloudy
Notes:
The electricity supply of HVS at AM1(SR77) was suspended from 16 May 2019 and was no longer available. In order to have a more secure electricity supply, an alternative Handheld TSP
 meter was proposed to use for the temporary monitoring  of 24-hr & 1hr air quality from 22 May 2019.