In July 1990, Hong Kong instituted a total ban on high-sulphur fuels. Since then, cars, lorries and power stations have only been allowed to burn fuels containing less than 0.5 per cent sulphur.
In July 1990, Hong Kong instituted a total ban on high-sulphur fuels. Since then, cars, lorries and power stations have only been allowed to burn fuels containing less than 0.5 per cent sulphur.