这种烹饪和取暖做法会造成高度室内空气污染，产生大量对健康有害的污染物，包括可渗透到肺部深处的烟尘微小颗粒。

Such cooking and heating produces high levels of indoor air pollution with a range of health-damaging pollutants, including small soot particles that penetrate deep into the lungs.

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当前我国空气污染问题日益严峻，汽车排放有害污染物是污染的重要来源。

Now the pollution become more serious, the exhaust of the car is the main source.

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有毒有害空气污染物的环境影响是国内外研究的热点，而机动车排放是其重要源之一。

Studying the environmental effects of toxic air pollutants is currently very important in the world.

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