Communications Earth & Environment, Journal Year: 2025, Volume and Issue: 6(1)
Published: Feb. 10, 2025
Atmospheric amines, derivatives of ammonia, play a unique yet not fully understood role in air quality, climate and public health. Sub-5 parts per trillion Volume (pptV, <10-12 volume) mixing ratios amines facilitate the physical and/or chemical transformation aerosols atmosphere, enhancing aerosol formation growth rates, hygroscopicity, activation cloud condensation nuclei. This serves as initial step for droplet and, consequently, influences properties hydrological cycle. Ambient observations demonstrate more than thousand-fold particle rates presence compared to ammonia. Yet, challenges related detecting minute levels paucity ambient amine measurements, limited process-based understanding airborne production have resulted being underrepresented global models. Therefore, advanced techniques with extremely low detection limits highly spatially temporally resolved measurements globally diverse environments are essential. Amines, ubiquitous atmospheric compounds that emitted from range natural anthropogenic sources, key activating nuclei, under-represented models require future high-precision measurement.
Language: Английский