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The main causes of Hong Kong’s air pollution are oil- and coal-fired power stations and vehicle exhaust emissions.

Hong Kong’s air pollution is only getting worse as we consume more and more energy.

The government’s way of judging air pollution, its “Air Quality Objective” (AQO), has not been updated for 20 years and now lags far behind World Health Organization safety guidelines. That’s why the Hong Kong government’s Air Pollution Index, which they publish every day, does not give a true picture of the air quality and is endangering your health.

You have the right to know what you're breathing!
Download Greenpeace’s Real Air Pollution Index


Greenpeace challenges the Hong Kong government over air pollution!

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Since 2004, Greenpeace has been pressuring the Hong Kong government to update its old fashioned AQO. We successfully pushed them to conduct a review of the AQO and the results of that review are due at the end of this year. Greenpeace needs your support in helping monitor the results of that review and in pushing the government to address the seriousness of Hong Kong’s air pollution and to urgently update the AQO.

How will changing the AQO help reduce Hong Kong’s air pollution?


The government uses the AQO to decide air pollution policy. If it is changed then the government will be forced to tighten up a raft of air pollution control measures including:

  • - Cracking down on power station emissions;

  • - Incorporating more measures to improve air quality in urban planning such as not building high rises too close to each other and creating more green spaces in the city;

  • - Making environmental regulations much stricter for infrastructure projects such as ensuring that flyovers are not built too close to residential areas.