
Atmosphere, Journal Year: 2024, Volume and Issue: 15(10), P. 1165 - 1165
Published: Sept. 29, 2024
The knowledge of the deposition fate ambient polycyclic aromatic hydrocarbons (PAHs) on plant leaves is limited. To fill in this gap, study strives to observe intermolecular complex between and epicuticular wax using laser scanning microscopy. Epicuticular refers a type organic mixture that covers outermost layer leaves. 20 tree species were collected Beijing July 2023. concentrations 31 PAHs quantified by gas chromatography–mass spectrometry. Furthermore, complexes found with fluorescence spectrofluorometer levels total across ranged from 12.4 ng g−1 68.4 g−1. Differences amounts observed, which may be ascribed differences leaf surface types. higher concentration low-molecular-weight was compared high-molecular-weight PAHs. identified formation new emission at an excitation wavelength 340 nm relative We used microscopy 405 for stomata This situ, provides important information about
Language: Английский