The app will be a world first. Lau said such precise information was lacking in most air pollution indices, including Hong Kong’s own air quality health index, which he helped develop.

The WSJ's Deborah Kan speaks to Hong Kong's Deputy Director of Environmental Protection and Clean Air Network co-founder Joanne Ooi.

Ecoceres, a spinoff from Hong Kong billionaire Lee Shau Kee’s Towngas, has set its sights on becoming a leading green jet ...

Opinion: "Put simply, China and Hong Kong, like the rest of the world, are still going in the wrong direction," write John ...

Researchers from the Hong Kong Polytechnic University, alongside mainland collaborators, have uncovered an unexpected phenomenon: severe wintertime ozone (O₃) pollution in Lanzhou, China ...

UNICEF has issued a stark warning about the devastating impact of toxic air on children across East Asia and the Pacific.

Researchers from the Hong Kong Polytechnic University, alongside mainland collaborators, have uncovered an unexpected phenomenon: severe wintertime ozone (O 3) pollution in Lanzhou, China ...