According to Clean Air Network’s review of 2014 air quality monitoring data, Hong Kong’s air quality had slightly improved in 2014 compared to the year before. However, pollutant levels still fall short of the WHO standards and threats from marine and regional pollution still pesist.
Marine emission threaten residents in Hong Kong West
The reductions achieved could easily be offset by further marine emissions. Levels of sulphur dioxide (SO2), an indicator of marine emissions, exceeded the WHO annual guideline (5 μg/m3) at all monitoring stations except Tai Po. Kwai Chung had the highest SO2 levels among all stations, followed by Tsuen Wan, Sham Shui Po, Tuen Mun and Tung Chung.
The first two locations are container and shipping terminals, whereas the others are dotted along the route of the container ships that leave Shekou Container Terminals in Shenzhen to Hong Kong or elsewhere, harming citizens’ health especially those who live in the west of Hong Kong.
CAN suggested the mandatory switch of fuels to less than 0.5 percent sulphur content should be implemented as soon as possible and set up Emission Control Area in the greater PRD waters.
Source: Clean Air Network
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