1. If you're standing nearby, the birdhouse will also give you a free Wi-Fi connection—but only if pollution level is low enough.
如果你站在附近，鸟舍也会给你免费 Wi-Fi 连接，但前提是污染水平得足够低。
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2. Her monitor has shown that air pollution levels are higher closer to ground level, which has helped highlight concerns that babies and young kids may be at higher risk of developing lung problems.
13. Thee average air pollutionlevel for cities around the globe is 22 micrograms per cubic metre, according to the World Health Organisation (WHO).
据世界卫生组织（WHO）称，全球城市空气污染平均水平在22微克/立方米。
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14. From the technical and economical point of view, it is important to select a proper type of insulators for different areas with different pollutionlevel.
针对不同污秽地区，选择适宜型号的绝缘子作为防污措施在技术经济上是合理的。
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15. The primary ways in which railway transport and highway transport have effects on urban environment and factors affecting traffic pollutionlevel are discussed.
本文分析了铁路运输和汽车运输对城市环境的主要作用途径和交通污染水平的影响因素；
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16. Both quantitative GC data of alkanes and HPLC data of PAHs indicated that organic pollutionlevel was higher in Temple of Heaven site than that in Ming Tomb site.
17. Monitoring data showed the Air Quality Index in most parts of the capital reached 500, the maximum pollutionlevel, on Sunday, the third consecutive day of severe smog.
18. The observational results indicated that NO2 pollutionlevel increased year by year, the O3 mass concentration increased and maximum value appeared ahead in the year of 2006.
结果表明：南京市环境空气NO2污染逐年增加，2006年O3质量浓度增大并且最大值的出现时间提前。
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19. The effect of biofilm treatment is better than that of the traditional activated sludge treatment especially in low-pollutionlevel of sewage treatment and short-term treatment.
20. Conclusion: The lead, cadmium, mercury pollutionlevels in Ezhou food were generally lower, but aluminum pollution level was higher, so measures should be taken to assure food security.
21. The level of pollution in the river was falling.
该河流受污染的程度其时正在降低。
《柯林斯英汉双解大词典》
22. Air pollution has risen above an acceptable level.
空气污染已经超标。
《牛津词典》
23. What concerns scientists is the increasing level of pollution in our citics.
科学家关注的是我们中信证券污染水平的日益提高。
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24. He points proudly at one of the screens, which shows that pollution in the city is better than the level considered to be safe by the World Health Organisation.
25. These cores show that the level of pollution, especially soot, in Himalayan glaciers correlates with emissions in Europe and South Asia.
这些冰心不仅表明了此地的污染程度，更重要的是说明了喜马拉雅山冰川上的烟灰与欧洲和南亚的排放相关。
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26. For example, when burned in vehicles, even the most ecologically acceptable sources of ethanol create air pollution that will cause the same mortality level as when gasoline is burned.
举例来说，如果作为汽车燃料，即使最环保的乙醇，其造成的空气污染也会导致和燃烧石油同样的死亡率。
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27. There's broken glass everywhere, there's rusted barbed wire everywhere, the level of pollution is insane.
到处是碎玻璃，到处是生锈的铁丝网，污染的状况让人疯狂。
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28. Jackson said the EPA will now instruct its local offices not to approve new valley-fill permits that are likely to produce a certain level of pollution in waters downstream.
杰克逊认为环保署将会指导当地部门不再批准有可能会污染水源的采矿申请。
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29. Air pollution in Beijing reached a high level of 99 on the Air pollution Index on Friday as a sandstorm from the northwest shrouded the capital in dust, the China News Service reported.
据中国新闻社报道，北京市区13日遭遇了来自西北方的沙尘袭击，当天该市污染指数一度达到99。
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30. Air pollution in Beijing reached a high level of 99 on the Air pollution Index on Friday as a sandstorm from the northwest shrouded the capital in dust, the China News Service reported.
