air pollutionglossary / AIR POLLUTION air pollution. Environmental law. Any harmful substance or energy emitted directly or indirectly into the air, esp. if the harm is to the environment or to the public health or welfare. [Cases: Environmental Law 241–301.] 词条贡献者 法律翻译文楷,毕业于新加坡知名法学院,专注翻译各类与合并许可有关的法律文件。