人为污染源

底泥中PAHs分布明显受人为污染源及水动力条件的影响，污染源集中排放区底泥中PAHs含量高，水动力强的部位PAHs含量低；

The PAHs distribution obviously was affected by man-made pollution sources and water driving force conditions .

富集成分中，S、As、Zn、Pb等主要来源于人为污染源，Na则主要来源于海洋。

The enrichment elements , such as S , As , Zn , Pb are mainly released from anthropogenic sources , and Na is from the ocean .

周末O3、NOx浓度及NO2/NO有规律的增大，表明实验地点的大气受到人为污染源的影响。

The regular increases of O 3 , NO x , and NO 2 / NO at weekends indicate that observation site is influenced by anthropogenic pollution from the traffic .

因此，对控制这些湖泊的水质富营养化而言，控制氮沉降并不是目前最紧迫的任务，而其它人为污染源的控制才是最急需的。

As a result , to control water eutrophication of these lakes , it is not most urgent to control nitrogen deposition but to control the other sources of nitrogen pollution mentioned above .

好：厂房位置远离自然或人为的污染源。

Good : Plant situated away from natural or manmade sources of contamination .

空气受到了有害气体的污染。好：厂房位置远离自然或人为的污染源。

The air is infected with noisome gases . Good : Plant situated away from natural or manmade sources of contamination .

随着人为电磁辐射污染源的不断增加，如通信基站天线、大型电气设备、高压输电、大型配电房的广泛应用，使得电磁环境恶化。

Electromagnetic environment has become even worse with artificial electromagnetic radiation pollution continuing to increase . The reasons for this situation are the extensive applications of base-station antennas for mobile communication , large electrical equipment , high-voltage transmission and the large-scale distribution and so on .

人为矿床大多具有污染源和资源的双重属性，开发利用人为矿床是治理环境污染的釜底抽薪之法，开发利用人为矿床可以收到经济和环保的双重效益；

The artificial deposits are rather characterized by polluted source and resources , the ways to develop the artificial deposits play a uprooted role against environmental contamination , as well of double effects in economy and environment protection ;