Although the research station is far from major sources of human pollution, atmospheric circulation brings air from Europe and North America into the Arctic region.

虽然这个研究站远离人类主要的污染源，但是大气环流会把欧洲和北美的空气带到北极地区。

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The concept and method of exposure efficiency are used to precisely estimate the pollution intensity at a specific region resulted by various air pollution sources of industrial sectors.

为了精确地估算产业部门不同类别与特征的大气污染源对指定区域的污染强度，采用暴露效率概念及其研究方法。

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External factors: life region climate, dry, cold working environment air is dust, chemical gas pollution, alcohol and tobacco, spicy food stimulation, are easy to long-term chronic pharyngitis.

外界因素：生活地域气候寒冷、干燥，工作环境空气被粉尘、化学气体污染，烟酒、辛辣饮食长期刺激，都易得慢性咽炎。

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Environmental groups, foundations, and major oil and gas companies came together to support stringent measures to protect air and water from pollution in the Appalachian region, and they invited other groups to join in and help limit pollution from fracking.

WSJ: Fracking coalition upsets both greens and drillers