noun
polycyclic aromatic hydrocarbon; PAH
Technical term in chemistry for a class of organic compounds with multiple fused aromatic rings. Often abbreviated as PAH in English contexts.
多環芳香族炭化水素は大気汚染物質の一種です。
Polycyclic aromatic hydrocarbons are a type of air pollutant.
In this study, the concentration of polycyclic aromatic hydrocarbons in the soil was measured.