Gas-phase UV absorption spectra of a series of of terpenic oxygenated VOC: Nopinone, Myrtenal, Ketolimonene, Limononaldehyde and Caronaldehyde

•The UV spectra of a series of oxygenated terpenes were determined.•This work provides the first gas phase UV spectra of nopinone, ketolimonene, myrtenal and limononaldehyde.•The absorption of these compounds is significant above 290 nm.•The tropospheric photolysis lifetimes of these compounds were estimated.•Photolysis could be an important loss process of these compounds in the troposphere.