Hong Kong Air Pollutant Emission Inventory - Carbon Monoxide

 Chart for 1997-2015 Carbon Monoxide (CO) Emissions

Legend for Carbon Monoxide (CO) Emissions Chart

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Relative Significance

Between 1997 and 2015, CO emissions decreased by 45% which was mainly caused by a decline in emissions from the road transport sector.  Road transport and navigation sectors were two major sources of CO emissions, accounting for 51% and 23% of the total CO emissions in 2015, respectively.

During the same period, CO levels measured at the EPD’s roadside air quality monitoring stations were very low and followed closely with the CO emission trend, indicating that the roadside CO mainly originates from local emission sources.

User review date: 
Tuesday, 16 June, 2015