Government resolve on cleaner air must not waver

We might finally have an administration that cares about cleaning our filthy air. Indications are that the new administration led by C.Y.Leung will act to finally stem the choking smog that represents Hong Kong's No 1 public health crisis and is a major impediment to the city's competitiveness.

Last week, in his first address to the reconvened Legislative Council, the chief executive said improving air quality was among his top objectives. In a move that already stirred optimism about the government's determination to protect public health, Leung last month named environmentalist Christine Loh Kung-wai undersecretary for the environment.

It was also encouraging to see, a day after Leung's address, Secretary for the Environment Wong Kam-sing calling roadside pollution the city's greatest problem, and that a basket of initiatives to improve the city's air quality would be introduced next year. These, he said, would aim to comply with World Health Organisation standards rather than the outdated air quality measures still in use.

Among the initiatives being considered are "carrot and stick" policies that include removing some 60,000 heavily polluting diesel vehicles from our roads.

Such measures are urgently needed. Some older vehicles have been on the road for as long as 20 years and should be refused registration if they don't comply with vehicle emission standards.

While atmospheric pollution might have improved somewhat - due mainly to lower emissions from the city's power stations - the concentration of roadside emissions remains unacceptably high, and it is these emissions that affect us the most.