Aerosol monitoring program in Hong Kong
Conference
·
OSTI ID:466179
- City Univ. of Hong Kong, Kowloon (Hong Kong)
The control of suspended particulate matter in the Hong Kong environment is currently an important issue, and in December 1995 a diesel-petrol switch plan was voted down by legislators. PM10 have been monitored at 5-minute intervals for the past year at rooftop level in central Kowloon, Hong Kong, together with selected measurements of TSP. Wind speed, wind direction, and the concentrations of SO{sub 2}, NO, NO{sub 2} and O{sub 3} have also been monitored. Measurements are currently in progress of relative contributions of the small particles (nominal aerodynamic diameter 0.3-2.5 gm), as well as of the PM{sub 10} fraction, to the total aerosol content, using two TEOMS. The chemical nature of selected different aerosol size fractions is also under investigation. Aerosol concentration exhibits a marked seasonal trend, being lower in the wet summer than in the dry winter. The diurnal variation shows two peaks which are linked to anthropogenic actions. Our measurements will be compared with the newly-established AQI of the Hong Kong EPD.
- OSTI ID:
- 466179
- Report Number(s):
- CONF-9606185--
- Country of Publication:
- United States
- Language:
- English
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