However, efforts to mitigate other stressors, such as by reducing contaminants and noise pollution, could be tried and thus aim to reduce their environmental stress levels.
但是，依然要致力于缓解其他生存压力，比如减少污染物及降低噪声无言，也能够尽力达到降低鲸鱼生长环境压力水平的目的。
Pollution levels in August reached some of their lowest levels in years, following a 71.3 billion yuan investment in environmental clean-up.
投入了713亿元的环境整治费后，八月份总算达到了历年污染程度最低的水平。
Smoke from the farm fires contributed about one quarter of the levels of the most dangerous air pollution in the Indian capital, environmental experts said.
环保专家称，农场燃烧秸秆时生成的烟雾为印度首都最严重的空气污染贡献了四分之一的污染物。
In conclusion, with people exposed to dangerous sound levels on the rise, noise pollution has become a common occupational and environmental hazard.
总结，人们接触有害声音的次数正在不断增长，噪声污染已经对环境造成了伤害。
This paper presents the statistics in testing the environmental noise of Huang Shi City for years, and analyzes the present levels and pollution features.
通过对黄石市多年环境噪声监测结果的统计，分析了黄石市环境噪声的现状水平和污染特征，并提出相应的防治对策。
Composite index analysis is based on the relative concentration of quality components in its environmental quality standards to judge the pollution levels of the water-quality status.
水环境质量评价指数法是根据水质组分浓度相对于其环境质量标准的大小来判断水的质量状况。
To reduce levels of environmental pollution.
降低环境污染的程度。
More and more attention has been paid to Huai River pollution by Environmental protection departments at all levels.
淮河治污一直是各级环保部门较为关注的问题。
Beijing g's air pollution reached dangerous levels yet again on Sunday, marking the third consecutive day of severe smog, municipal environmental authorities said.
北京市环保部门称，北京空气污染在上周日再次达到危险的水平。持续三天的严重雾霾天气给北京带来了严重的空气污染。
Beijing g's air pollution reached dangerous levels yet again on Sunday, marking the third consecutive day of severe smog, municipal environmental authorities said.
北京市环保部门称，北京空气污染在上周日再次达到危险的水平。持续三天的严重雾霾天气给北京带来了严重的空气污染。
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