Escape the bad air: Hong Kong scientist develops app that lets users plan routes to avoid pollution

A Hong Kong scientist has developed a route-planning mobile app with a difference – it directs users through areas with the lowest levels of air pollution.

Dr Alexis Lau Kai-hon of the University of Science and Technology (HKUST) hopes it will help people most susceptible to the effects of bad air, such as asthma patients.

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