Source:
https://scmp.com/news/hong-kong/article/1202217/government-unveils-plan-give-hk-world-class-roadside-air-quality-7
Hong Kong

Plan to give Hong Kong world-class air quality in 7 years

But they caution some pollutants will persist even after new standards are introduced

Storm clouds over Hong Kong Island yesterday. The government says the city’s air quality must improve within three years. Photo: KY Cheng

Top officials yesterday unveiled a seven-year plan to cut Hong Kong's notorious roadside air pollution, while admitting some of the targets might be hard to meet.

Billed as an air-quality roadmap to 2020, the plan says that if all measures are fully introduced, roadside pollution will begin to drop in the next two to three years, and see significant improvement in four to five.