Polysaccharides─Important Constituents of Ice-Nucleating Particles of Marine Origin

Environmental Science & Technology, Год журнала: 2025, Номер unknown

Опубликована: Март 7, 2025

Remote marine regions are characterized by a high degree of cloud cover that greatly impacts Earth's radiative budget. It is highly relevant for climate projections to represent the ice formation in these clouds. Therefore, it crucial understand sources ice-nucleating particles (INPs) enable primary formation. Here, we report polysaccharides produced four different aquatic eukaryotic microorganisms (Thraustochytrium striatum, Tausonia pullulans, Naganishia diffluens, Penicillium chrysogenum) as responsible macromolecules (INMs) samples originating from biosphere. By deriving classical nucleation theory-based parametrization polysaccharidic INMs and applying global model simulations, comparison currently available atmospheric INP observations demonstrates 44% contribution total INPs origin within -15 -20 °C. The results highlight relevance biological part population remote regions.

Язык: Английский

Using Synthesized Size-Resolved Lignin Nanoparticles to Investigate the Atmospheric Ice Nucleation of Biomass Burning Organic Aerosols

ACS ES&T Air, Год журнала: 2025, Номер unknown

Опубликована: Апрель 10, 2025

Язык: Английский