The definition and characteristic of indoor air pollution as well as the source of major pollutants and their danger are introduced with measures for controlling indoor air pollution presented.
介绍了室内空气污染的定义、特点以及主要污染物的来源和危害，并提出了室内空气污染的控制。
We normally associate air pollution with smokestacks and cars, but volcanoes, forest fires, dust storms, marshes, oceans, and plants also add to the air chemicals we consider pollutants.
我们常常将空气污染与烟囱和汽车联系在一起，但事实上火山、森林火灾、沙暴、沼泽、海洋和植物都会带来一些我们认为是大气污染物的化学物质。
The content of air pollutants in the leaves of planting trees can reflect degrees of air pollution and ability of absorbability of planting trees for air pollutants.
植物叶片内大气污染物含量既可反映大气污染的水平又可反映植物对大气污染的修复吸滞能力。
Content of air pollutants of leaves of planting trees can show degree of air pollution, ability of remediation, and absorbability of planting trees for air pollutants.
植物叶片内大气污染物含量既可反映大气污染的水平，又可反映植物对大气污染的修复吸滞能力。
Carbon dioxide and air pollutants arise largely from the same industrial sources and are diffused throughout the world, so that air pollution is also part of global change.
二氧化碳和空气污染物从相同的工业来源基本上出现并且整个世界被扩散，以便空气污染也是是全球变化的一部分。
Researchers have investigated outdoor air pollution and have developed standards for measuring the type and amount of some serious air pollutants.
研究人员调查了室外空气污染和制定的标准测量的类型和数量的一些严重的空气污染。
Researchers have investigated outdoor air pollution and have developed standards for measuring the type and amount of some serious air pollutants.
研究人员调查了室外空气污染和制定的标准测量的类型和数量的一些严重的空气污染。
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