A district in which it is illegal to create smoke and where only smokeless fuel may be used.
〈英〉无烟区（只能使用无烟燃料的地区）
Example sentencesExamples
Bradford Health Committee is recommending that 20 smokeless zones be established in the city, one in the central area and the remainder covering housing estates in the outskirts.
And isn't the New Town supposed to be a smokeless zone?
Scarborough Council says it may have to make at least part of the village a smokeless zone, to ensure Government targets for air quality are met.
Bradford may soon have its first smokeless zone if a special meeting of the Corporation Health Committee, which is being called to consider the subject, approves the project.
A five-strong deputation met Bolton Health Committee members yesterday to discuss problems and complaints which have arisen from the introduction of a smokeless zone.