雅洛德说，对这种资料进行分析，让科学家得以更好地预测大气中有害污染物质的分布。
Jarraud says an analysis of this data enables scientists to better forecast the distribution of potentially harmful pollutants in the atmosphere.
但公司会把发现在某些种类的鱼中有对人体有害的污染物质告诉你吗？
But could they also expose you to the harmful pollutants found in some species of fish?
交通污染物质中往往含有更多的金属物质，可能在肺部产生有害的自由基。
Traffic pollution tends to contain more metals, which react to produce damaging free radicals in the lungs.
《清洁空气法》授权美国环保局监管有害污染物，如微粒物质和臭氧。
The Clean Air Act mandates the EPA to regulate harmful pollutants such as particulate matter and ozone.
之前做过包括水生食肉哺乳动物等活体动物实验显示，污染物质能对海洋生物产生有害作用。
Prior research on laboratory animals, including captive aquatic carnivorous mammals, has shown that the pollutants "can cause deleterious effects," she said.
例如，过去，劝说美国企业限制使用有害化学物质和排放污染物，是极为困难的。
For example, it had proved extremely difficult to persuade American businesses to cut down on the use of harmful chemicals and their release into the environment.
并且会导致空气中污染物不易扩散，增强有害物质的毒性，严重的，还可能会导致毒雾发生。
And can lead to air pollutants is not easy to spread, enhanced the toxicity of harmful substances, serious, may also cause smog.
自然界中的许多矿物自身赋有容纳和稳定有害物质的自净化能力，可用于重金属类污染物的治理。
Many minerals in nature have the self-purification capacity to hold and stabilize deleterious contaminant, which can be used to deal with heavy metal contaminants.
这些污染物常常与其他有害物质，如铅、锌和地面臭氧一起出现。地面臭氧是汽车排气与太阳光一起发生光化学反应形成的一种烟雾成分。
The pollutants often occur with high levels of other toxins such as lead, zinc, and ground-level ozone, a component of smog formed by chemical reactions between car exhausts and sunlight.
实验室内往往存在许多有害的化学废气及有毒试剂的污染物质，尤以化学废气为甚。
Improper design laboratory consist of unwanted harmful substances especially for those involve heavily on chemical analysis.
本发明的优点：有效降解周围空气中的污染物质，对室内的甲醛苯酚等有机有害小分子进行降解。
The present invention has the advantages of effective degradation to pollutant in ambient air and indoor organic small molecules such as formaldehyde and phenol.
本发明的优点：有效降解周围空气中的污染物质，对室内的甲醛苯酚等有机有害小分子进行降解。
The present invention has the advantages of effective degradation to pollutant in ambient air and indoor organic small molecules such as formaldehyde and phenol.
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