New Insights into Atmospheric Marine Composition: Characteristics, Processes, and Climate Effects

A special issue of Atmosphere (ISSN 2073-4433). This special issue belongs to the section "Aerosols".

Deadline for manuscript submissions: 24 April 2025 | Viewed by 932

Special Issue Editors


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Guest Editor
Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, China
Interests: atmospheric chemistry; aerosol; land–sea interaction; marine emissions

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Guest Editor
Escuela de Ingeniería Química, Pontificia Universidad Católica de Valparaíso, Valparaíso 2340025, Chile
Interests: sea–air transfer; emission inventory; air dispersion modeling; coastal urban air quality; dimethylsulfide; halocarbons

Special Issue Information

Dear Colleagues,

Marine ecosystems are rapidly responding to global warming, producing substantial feedback to the Earth’s energy balance and climate change. Marine aerosols and gas precursors are critical to cloud condensation nuclei (CCN) and ice nuclei (IN) over the ocean, alongside being the interface for substance reactions and a primary factor in the global atmospheric oxidizing capacity. Global warming has augmented the sea-surface temperatures and altered marine ecosystems’ acidity, nutrient inputs, and microbial communities, alongside the dramatic acceleration in marine aerosol emissions over the past four decades, changing global or regional climate outcomes via the sea–air feedback pathway. Meanwhile, the concomitant variations in marine emissions pose potential, daunting concerns for human health due to enhanced pollutants and bioaerosols. There is a compelling demand for a clear understanding of atmospheric marine composition and its linkage with marine biology, climate effects, and human health under more complex scenarios than a few decades ago.

This Special Issue aims to showcase new insights into atmospheric marine composition and its climate effects, as well as potential insights on human health assessments from filed observations and wave/chamber and model simulations. Novel technologies promoting our understanding of marine aerosols and their effects on climate change and human health are also needed. Therefore, we sincerely invite contributions in relation but not limited to the following topics:

  • Current advancements and opinions on atmospheric marine composition and its environmental effects;
  • Chemical and physical properties of marine aerosol particles;
  • Gas precursors and reactive gasses from marine emissions;
  • Secondary aerosol formation process, mechanisms, and influencing factors;
  • Sea–air interface process and production of sea spray aerosol and gas precursors;
  • Sea–air exchange process, controlling factors, and flux of atmospheric marine composition;
  • New particle formation and size distribution of marine aerosol;
  • Marine aerosols contribute to CCN/IN formation and budgets;
  • Role of marine phytoplankton and dissolved organic matter in atmospheric marine composition emissions;
  • Responses and feedback of atmospheric transport and ocean deposition;
  • Updating emission inventories of volatile organic compounds and sea spray aerosol;
  • Harmful pollutants in the marine atmosphere caused by global warming and assessments of their health effects;
  • Bioaerosol from marine emissions and its potential health effects;
  • Climate effects of marine aerosols, studied globally or regionally;
  • New technologies for the observation, simulation, and modeling of atmospheric marine composition.

Prof. Dr. Kan Huang
Dr. Ernesto Pino-Cortés
Guest Editors

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Keywords

  • atmospheric marine composition
  • sea spray aerosol
  • atmospheric chemistry
  • interface processes
  • sea–air exchange
  • emission inventories
  • potential climate effects
  • marine ecosystem
  • human health
  • climate change

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Published Papers (1 paper)

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Research

17 pages, 3606 KiB  
Article
Simultaneous Measurement of Gaseous HONO and NO2 in Solutions from Aqueous Nitrate Photolysis Mediated by Organics
by Yilong Zhao, Qiong Li, Xiang Tu, Yu Liu and Hongbo Fu
Atmosphere 2024, 15(11), 1279; https://doi.org/10.3390/atmos15111279 - 25 Oct 2024
Viewed by 735
Abstract
Field studies suggest that NO3 photolysis may play a more significant role than previously thought. In this study, we concurrently measured HONO, NO2, and NO2 in situ to gain a deeper understanding of the photogenerated HONO transfer [...] Read more.
Field studies suggest that NO3 photolysis may play a more significant role than previously thought. In this study, we concurrently measured HONO, NO2, and NO2 in situ to gain a deeper understanding of the photogenerated HONO transfer to air and to better constrain the rate constants of NO3 photolysis. The presence of fatty acids (e.g., nonanoic acid, NA), which are naturally present in the environment, significantly increases the production of photogenerated HONO and NO2. With an increase in oxygen percentage, the release rate of photoinduced HONO slowed, while the release rate of NO2 accelerated. The measured JNO3 value averaged 1.65 × 10−5 s−1, which is two orders of magnitude higher than values reported in similar systems. The HONO transfer rate from the solutions increased from 2.3 × 10−4 s−1 to 5.6 × 10−4 s−1 as the NA concentration increased from 0.1 to 20 mM. This can be attributed to the accumulation of NO2 induced by NA at the interface. Within this interfacial region, NO2 in the solutions becomes more prone to transfer into gaseous HONO, suggesting that photogenerated NO2 hosted in atmospheric droplets may serve as a temporary reservoir of atmospheric HONO without illumination, influencing the atmospheric oxidizing capacity in the region for hours. Therefore, simultaneous measurements of both gas and particle phase photoproducts are recommended to better constrain the rate constants of NO3 photolysis, thereby enhancing the accuracy of predicting the photochemical production of HONO in the atmosphere. Full article
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