ArticleACS ES&T air2024
Enhanced HONO Formation from Aqueous Nitrate Photochemistry in the Presence of Marine Relevant Organics: Impact of Marine-Dissolved Organic Matter (m-DOM) Concentration on HONO Yields and Potential Synergistic Effects of Compounds within m-DOM.
Article in ACS ES&T air, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
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The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
6 citing papers in PubMed.
- Mechanisms for the Enhancement of Nitrate Photodegradation by Brown Carbon.ACS ES&T air · 2026Article
- Integrated Kinetic and Thermochemical Analysis of Aqueous-Phase Naphthalene Nitration and Its Contribution to Brown Carbon.Environmental science & technology · 2026Article
- Aerosol iodide accelerates reactive nitrogen cycling in the marine atmosphere.Nature communications · 2025Article
- Elucidating the Impact of Wildfire Molecular Tracers on Nitrous Acid (HONO) Production from Aqueous Nitrate Photochemistry.ACS ES&T air · 2025Article
- Probing O(The journal of physical chemistry. A · 2025Article
- Photooxidation of Nonanoic Acid by Molecular and Complex Environmental Photosensitizers.The journal of physical chemistry. A · 2024Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Nitrous acid (HONO) is a key molecule in the reactive nitrogen cycle. However, sources and sinks for HONO are not fully understood. Particulate nitrate photochemistry has been suggested to play a role in the formation of HONO in the marine boundary layer (MBL). Here we investigate the impact of marine relevant organic compounds on HONO formation from aqueous nitrate photochemistry. In particular, steady-state, gas-phase HONO yields were measured from irradiated nitrate solutions at low pH containing marine-dissolved organic matter (m-DOM). m-DOM induces a nonlinear increase in HONO yield across all concentrations compared to that for pure nitrate solutions, with rates of HONO formation increasing by up to 3-fold when m-DOM is present. Furthermore, to understand the potential synergistic effects that may occur within complex samples such as m-DOM, mixtures of chromophoric (light-absorbing) and aliphatic (non-light-absorbing) molecular proxies were utilized. In particular, mixtures of 4-benzoylbenzoic acid (4-BBA) and ethylene glycol (EG) in acidic aqueous solutions containing nitrate showed more HONO upon irradiation compared to solutions containing only one of the molecular proxies. This suggests that synergistic effects in the HONO formation can occur in complex organic samples. Atmospheric implications of the results presented here are discussed.
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Registered trials
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