The emission control system is required by law to reduce the air pollution the engine could produce.

排放控制系统按法规要求来降低发动机可能产生的空气污染。

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Because environmental protection law and air pollution prevention law are both about pollution management and controlling which embody the idea of end treatment.

由于环保法到大气污染防治法等环境法律，全部都是污染管理与控制方面的法律，体现了末端治理的思想。

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Results: The main channel of atmospheric pollution and the law governing the changes in concentration were summed up and a proposal for the control of air quality in the compartments was advanced.

结果：分析归纳了舱室大气污染的主要途径及浓度变化规律；提出了舱室大气质量控制建议。

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It is to add dioxin to the list of toxic chemicals controlled under an air-pollution law.

CNN: Warning -- this garbage is dangerous

The court's upcoming cases touch on the issues of abortion, affirmative action and air pollution, in addition to immigration and patent law.

NPR: A Newly Conservative Supreme Court?