“一微克”行动

The "one microgram" initiative

是一项针对北京大气污染防治的长期任务，强调细颗粒物治理要一个微克一个微克去抠，综合运用科技、执法、管理等手段，实施大气污染精准治理。

This is a long-term initiative for controlling Beijing's air pollution. It uses a combination of targeted measures to achieve its purpose, including technology, enforcement and compliance and management measures. By this initiative, each and every microgram of emission reduction counts.