| 1. | Several compounds that are carcinogenic to animals have been identified in urban air in all large cities in which surveys have been conducted .
在考察过的所有大城市的空气中，已鉴定出几种化合物对动物是致癌的。 |
| 2. | Bioassays on the skin, subcutaneous tissue, cervix, and trachea of experimental animals have shown that particulate matter of urban air can be carcinogenic in the intact animal .
对实验动物的皮肤、皮下组织、颈和气管的生物鉴定表明，城市空气中的颗粒物质对健康动物可能是致癌的。 |
| 3. | Exposition of urban air pollution forecast methods
城市空气污染预报方法简述 |
| 4. | Urban air pollution and utilization of renewable energy
城市大气污染与可再生能源利用 |
| 5. | Pahs and normal - alkanes in urban air of beijing , tokyo and tsukuba
大气颗粒物中多环芳烃污染特征 |
| 6. | A set of technical schemes have been developed , which are applicable to study the calculational and distributive method of the total quantity control for urban air pollutant emission in china
作者提出了一套适合我国城市大气污染物允许排放总量计算与分配的技术路线和模型。 |
| 7. | In daily life , people can reduce vehicle exhaust pollution through maintaining central components in engine air intake system regularly in order to protect the urban air
在日常生活中，人们可以通过对发动机进气系统中的相关部件进行定期地维护和保养来降低汽车排气污染，以达到减少城市大气污染的目的。 |
| 8. | The impact of air pollution on human health has been widely recognized . the world health organization ranked urban air pollution the 13th contributor to global deaths in its 2002 world health report figure 1
空气污染对健康造成的威胁已经得到广泛的认同，世界生组织在它撰写的2002年世界生报告中将市区室外空气污染列为全球死亡人口的第十三大主因。 |
