北京市环保局总工程师于建华承认，去年空气质量的提升没有大到可以改变居民对整体空气质量的感觉。

Yu Jianhua, the Beijing environmental bureau's chief engineer, conceded that the improvements made last year were "not huge enough" to change residents' perception of overall air quality.

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北京市环保局日前发布了2014清洁空气十大关键词，排名前三的分别是“APEC蓝”、“人努力天帮忙”和“铁腕治污”。

The Beijing Municipal Environmental Protection Bureau has released its top key words for 2014, with the first three being "APEC blue, " "Effort and luck, " and "Fight pollution with an iron hand.

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概要：《北京市空气重污染应急预案》今天正式发布，市环保局新闻发言人方力表示，空气污染达一级红色预警时，机动车将实行单双号限行。

When a red-alert for air pollution goes into effect, the emergency plan will only allow drivers to use their vehicles every other day on an odd-even license plate system.

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