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Hong Kong Air Pollutant Emission Inventory - Sulphur Dioxide

Chart for 1997-2016 Sulphur Dioxide (SO2) Emissions

Legend for Sulphur Dioxide (SO2) Emissions Chart

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Relative Significance

Between 1997 and 2016, SO2 emissions decreased by 78%, which was mainly caused by a decline in emissions from the public electricity generation sector.  Navigation and public electricity generation sectors were the top two sources of SO2 emissions, accounting for 49% and 46% of total SO2 emissions in 2016, respectively.

During the same period, SO2 levels measured at the EPD’s general air quality monitoring stations by and large followed the SO2 emission trend, indicating that the ambient SO2 mainly originates from local emission sources, in addition to other factors such as meteorological conditions. 

User review date: 
Tuesday, 16 June, 2015