英语词汇“air quality standards”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	air quality standards
释义	Air quality standards Air quality standards The level of pollutants prescribed by regulations that are not to be exceeded during a given time in a defined area. air quality standards air quality standards A general term for the standards of air quality (concentration of pollutants for an average length of time) set by the Environmental Protection Agency or equivalent body in a particular country. In the US, the standards are based on the concentration of 5 ambient air pollutants (SO2, particulate matter, carbon monoxide, ozone, and NO2).
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英语词典包含2567994条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。

Air quality standards