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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USEPA classifies PCBs as a probable human carcinogen based on studies of laboratory animals and other evidence that suggests that PCBs might cause cancer in humans.

美国环保局归类为可能的人类多氯联苯等致癌物和人类的动物实验研究的基础上证据表明在多氯联苯可能导致癌症。

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The dispersion situation along typical roads was simulated using the line source dispersion model-CALINE4, developed by California traffic department and recommended by USEPA.

最后利用美国加利福尼亚交通部开发的线源空气质量模型CALINE4模式对典型道路污染物的扩散状况进行了模拟。

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According to correspondence at the DEQ, Pall was using USEPA Method 1624.

FORBES: Responsible Investing: Is Pall 'Leading' in Water Filtration? (Governor Snyder's Hometown has a 1,4 Dioxane Problem)