空气污染物

任何污染源或其组成，包括流入空气中且在相当高浓度下可能影响人类、动植物或物质之各类物理性、化学性、生物性或放射性元素或物质。

air pollutant

Any pollutant agent or combination of such agents, including any physical, chemical, biological, radioactive substance or matter which is emitted into or otherwise enters the ambient air and can, in high enough concentrations, harm humans, animals, vegetation or material. (Source: LEE / TOE)