Mouse operation, seen smoking on the mice which point, if the air pollution index too high, it is necessary to open ventilation windows.

鼠标操作，看到老鼠吸烟就点它，如果空气污染指数过高，要点击窗户打开通风。

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Air pollution index (API) was developed by USEPA in 1970s which was used for the daily air quality report and easy for the public to understand.

空气污染指数(API)是美国环保署于70年代研究开发的一种用于表示每日空气质量状况，并易于为大众理解的报告方法。

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This year's target for air pollution control is to raise the rate of days with air pollution index equaling or bettering grade II to 55 percent.

目标继续提高，市区空气污染指数二级和好于二级天数要达到55%。

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He and his colleagues have launched a new air-pollution index that he says captures health risks better than the official index, which has not kept pace with the latest science.

ECONOMIST: An encouraging appointment addresses an enduring problem

The government's Air Quality Index shows "unhealthy" pollution levels in much of Southern California.

CNN: Smoke a serious health threat as wildfires spread

Its report grades cities using, in part, the EPA's color-coded Air Quality Index, as well as its own weighting system that ranks the severity of pollution on a daily basis.

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