Updated on Mar 05, 2009 – SCMP
Some things will need to change as Hong Kong people demand a more healthy living environment. The sooner our government and politicians respond to this, the sooner their popularity will rise. Even during tough economic times, people still want to protect their health. Inaction on this issue cannot be excused simply because “it costs more”.
A headline in the Sunday Morning Post sounded a warning: “Parents question decision to build MTR air vent next to school”. Parents of students attending Bonham Road Government Primary School are fighting the railway operator’s plan to site a ventilation shaft next to the school. The company and government say the shaft acts like a window to improve air exchange and will not spew out pollution.
What is interesting is the concern of parents. A few years ago, such a protest would probably not have happened. Today, people are far more concerned about public health. They are asking questions and demanding answers.
Parents should focus on how far away schools are from major roads; vehicle emissions are a health hazard for everyone, but especially children.
In the US, a school sited within 400 metres of a highway is considered within an air-pollution danger zone. If we were to apply this standard to Hong Kong, many of our schools situated right by busy roads with very high daytime pollution levels would not pass muster. Equally threatening to health is the undesirable “street canyon effect” that traps pollution between tall buildings.
Planners and officials might protest that it is impossible to ensure schools in Hong Kong are sited further away from busy roads because of the high urban density, but this assumption should not be taken at face value. We should at least ask how, in a city like ours, we can protect public health, especially of youngsters whose physical development can be impaired by pollution.
Children are not just miniature adults: they eat, drink and breathe at much higher rates; their growing bodies more readily absorb contaminants; and their developing immune systems make them more prone to diseases and disorders caused by exposure to toxins. Polluting emissions near schools, where children spend many hours a day, pose a huge threat to students’ health. Although the science is clear, we have not yet taken public health into account when planning our city.
Turning on air filter systems indoors will help, to a point. But, if the overall air quality is poor, all of us suffer.
In such a dense and built-up city, shouldn’t the attitude be “we need to work harder to minimise health risks” rather than “we can’t do much about it”? The political will of our leaders is paramount. Very little will change from a “business-as-usual” approach. Much more can be done if they adopt the Hong Kong “can-do” attitude our officials so loudly crow about when it comes to business matters.
For Hong Kong to have a chance to be a healthier city, the Development Bureau (which is in charge of urban planning), the Transport and Housing Bureau and the Environment Bureau first need to work together, rather than stay in their own bunkers. The heads of these policy bodies need to know, through legislation, what Hong Kong’s priorities are.
Laws such as the Air Pollution Control Ordinance need to be overhauled so that public health becomes the clear driver for planning and emissions control. Air quality standards must also be drastically tightened to make them at least consistent with modern health standards in science.
The government will argue that it is “reviewing the standards” but, if the whole of the government is not given a unifying vision and mission to make health a top priority through strong policy and laws, it won’t be enough.
Parents arise! We owe nothing less to our children.
Christine Loh Kung-wai is chief executive of the think-tank Civic Exchange. cloh@civic-exchange.org