Hong Kong Air Pollutant Emission Inventory - Carbon Monoxide

  

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Relative Significance

Between 2001 and 2018, CO emissions decreased by 24% which were mainly caused by the decline in emissions from the road transport sector.  Road transport and navigation sectors were two major sources of CO emissions, accounting for 50% and 27% of the total CO emissions in 2018, respectively. 

During the same period, the gap between the CO concentration levels measured at the EPD's roadside and ambient air quality monitoring stations have narrowed, indicating that vehicular CO emissions have been reduced.

Source: https://www.epd.gov.hk/epd/english/environmentinhk/air/data/emission_inve_co_C.html

China, US biggest carbon polluters, study finds

The world continues to increase the amount of heat-trapping carbon dioxide it pumps into the air, but it’s not rising as fast as in the previous couple years.

Led by big jumps from China and India, the world is projected to spew 40.57 billion tons (36.8 billion metric tons) of carbon dioxide into the air in 2019. That is up nearly 255 million tons (231 million metric tons) from 2018, according to two scientific studies released Tuesday.

Read more at http://www.thestandard.com.hk/breaking-news.php?id=137976&sid=6