Mission & Vision

Our vision is to build a Hong Kong with clean air

To achieve this vision, CAN dedicated to drive policy change by building knowledge, collaborating strategically and advocating solutions in a collaborative approach. Without losing sight on the pollution from regional activities, marine vessels and power plants, our current primary focus is on roadside pollution.

Our Story

In 2009, we pioneered the air quality movement in Hong Kong.

Air pollution in our city is damaging our health as individuals, the profitability of our companies and our economy as a whole. Primarily caused by roadside and marine emissions and the “street canyons” trapping them around us, it affects us all. And the effects are becoming increasingly acute. But at Clean Air Network, we believe that together, this is a problem we can solve.

We see three ways to do this: build knowledge and understanding among experts and the public; identify, connect and amplify the resources of stakeholders both in Hong Kong and worldwide; and work constantly to find and advocate the sustainable solutions for the future that our government can put into action today.

We have a unique and independent perspective on the dynamics affecting air quality in our city and we work side by side with the general public and each of the key players influencing this issue. We aim always to grow this network, so we actively partner on all our initiatives with academics, government officials, corporations and local communities. Our unified approach has enabled us to achieve systematic change in the way Hong Kong monitors and reports its air quality and also pass landmark legislation improving the way our public transportation is managed and marine vessels regulated.

Nevertheless, because we are driven by a fundamental commitment to using civic exchange to achieve lasting impact in the real world, we also build flexibility into our approach. Policy dialogue constantly evolves, and to remain effective, we too must stay nimble enough to adapt alongside it. Our strength is our strategic approach, proven commitment and established network.

We work to clean Hong Kong’s air. Because this is our city and a future we all share.

Our Strategies


Build knowledge

We build knowledge and understanding among experts and the public.

  • Health impact of air pollution is no longer disputable. It is a fact backed up by different scientific studies and understood across different sectors, including policy-makers, businesses, local communities and media.
  • We changed public monitoring of PM 2.5 data. CAN was the first organization in HK to release monitoring of PM2.5 data, prompting government to also release its own real-time measurements
  • A more comprehensive system was advanced. In 2014, the official report system changed from the old Air Pollution Index (API) to the modern Air Quality Health Index (AQHI).



Collaborate strategically

We identify, connect and amplify the resources of stakeholders both in Hong Kong and worldwide. A strong network is formed.

  • Different sectors are assembled to contribute to the ongoing clean air movement. Active support, thoughts and actions are provided by academics and experts; corporates and funders; media; political affiliations; civic groups and communities.


A young Asian woman wearing a medical face mask to prevent the spread of germs. She stands in a city street. Behind her you can see out of focus buildings and street She is wearing a checked sleeveless shirt and looking off camera. Shot in Hong Kong.

Advocate solutions

We work constantly to find and advocate the sustainable solutions for the future that our government can put into action today. Landmark legislations and policies are implemented with our strong lobbying.

  • A periodic review of Hong Kong’s Air Quality Objectives was legislated in 2014.
  • An HKD 1.4 billion fund was established in 2013 to retire old diesel commercial vehicles to reduce roadside emissions. All pre- Euro 4 diesel commercial vehicles will be phased out by end of 2019.
  • Clean fuel switching was made mandatory in 2014 for vessels berthing in Hong Kong which reduces year-to-year sulphur dioxide levels by up to 40%.
  • Marine vessels entering Pearl River Delta waters will be required to switch to cleaner fuel starting from 2019.
  • A full subsidized replacement scheme of toxic catalytic converters on LPG taxis/minibuses was in place (completed in 2014).