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。

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.

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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。

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.

youdao