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Ozone levels in Hong Kong hit an all-time high

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According to research by local environmental group Clean Air Network (CAN), levels of ozone concentration in Hong Kong have hit record high levels.

During the first half of the year, the average concentration of ozone in the city reached 46.92 micrograms per cubic meter, an all-time high and almost double of that in 1997.

CAN also discovered that concentrations of two key roadside pollutants – PM10 and nitrogen dioxide (NO2)- are likely to miss targets set by the Environment Bureau’s 2016 progress report for its 2013 air quality blueprint.

PM10 levels from January to June of this year were measured at 40mcg, with a target of 35mcg by the end of this year, while NO2 levels were recorded at 83mcg for the first half of the year, with a projected mark of below 80mcg by the end of this year.

A HK$11.7 billion plan to phase out old diesel commercial vehicles by 2019 and a green transport fund are some of the initiatives put in place to control pollution in the city.


Image: Clean Air Network (Facebook)

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