💡 It was while measuring the fluxes for this study (part of my PhD) that we noticed higher daytime N₂O emissions and decided to dig deeper…
That curiosity led to the discovery of #photochemodenitrification, a key process driving N₂O emissions
📄 www.science.org/doi/10.1126/...
Thank you so much! 🥰
I’m thrilled you enjoyed the seminar and grateful for the opportunity to share our work on #photochemodenitrification and N2O production ☀️
I truly loved meeting and discussing with the GTech community, such thoughtful questions and inspiring conversations! 🌊🔬🧪👩🔬
Seminar poster containing the text Title: Photochemodenitrification Unveiled: Illuminating Aquatic Nitrous Oxide Production Abstract: Nitrous oxide (N2O) is a potent greenhouse gas and the main agent depleting stratospheric ozone. During the last decade, its atmospheric levels have risen faster than previously estimated, highlighting the need to better understand its sources. While microbial processes like ammonia oxidation and denitrification are known contributors, our recent research has uncovered a novel abiotic pathway-photochemodenitrification-where sunlight drives N20 production from nitrite in oxygen-rich surface fresh and marine waters. In addition, photochemodenitrification exceeded biological NOproduction in surface waters. Our latest findings reveal that this photochemical process also occurs in polar regions and the tropical open ocean, emphasizing its global distribution. Because it occurs in surface waters in direct contact with the atmosphere, photochemodenitrification holds the potential to contribute significantly to N20 emissions.
Excellent seminar talk today by Dr Elizabeth Leon-Palmero on her discovery of #photochemodenitrification & nitrous oxide production in aquatic systems.
2025 Science paper: www.science.org/doi/10.1126/...
Check out her website for her impressive research & outreach: eleonpalmero.com
🎤 Excited to share that I will give a seminar next week at Georgia Tech’s 🌎 School of Earth & Atmospheric Sciences!
💡 Photochemical formation of nitrous oxide! #PhotoChemoDenitrification
📅 Sept 25, 11AM
🔗 eas.gatech.edu/events/eas-seminar-series-dr-elizabeth-leon-palmero
📣 Hope to see you there!
I feel a little PhotoChemoDenitrified today ☀️🤣
I couldn't ask for a better partner 🥹🥰🥰
#PhotoChemoDenitrification #Nitrogen #Science #Nerd
Had a lovely visit to @ceabcsic.bsky.social !
I really enjoyed the thoughtful feedback from everyone at the seminar 🤩🤩🤩
Plus, I had a delicious paella and fideuà by the beach, hanging out with awesome scientists and friends 💜
Blanes is such a cool place ☀️🥰 !!
#PhotoChemoDenitrification #N2O
🌊🔬Shedding light on the aquatic nitrogen puzzle: Photochemical production of #NitrousOxide ☀️👩🔬
Next Thursday 📆, I’ll be diving into the recent discovery on #PhotoChemoDenitrification at CEAB-CSIC in Blanes.
🕛 12:00 PM, June 12 ☀️
#N2O #AquaticEcology #CEAB #AquaticEcology
@ceabcsic.bsky.social
Today I presented my last findings on Nitrous Oxide ( #N2O) production by #Photochemodenitrification off the coast of West Greenland and in the Eastern Tropical South Pacific ( #ETSP) ocean
More cool results on this new process are coming soon!
#NitrousOxide #Photochemical #GHG
It is such an honor to be featured in the Protostar Section of Science Magazine! ☀️ ☀️ ☀️
I had a great time discussing my work with @nerdychristie.bsky.social
Thanks for having me! 😍 ☀️
#ScienceMagazine #Photochemodenitrification #NitrousOxide #MSCA #Science
@science.org
@ec.europa.eu
Some bacteria and archaea make nitrous oxide during ammonia oxidation to nitrite in well-oxygenated waters, whereas denitrifying bacteria produce it during reduction of nitrate in oxygen-poor waters. None of these, however, could fully explain the observed increase. ‘It was just this weird conundrum that in many cases the mechanism that was being used to explain most of these emissions didn’t seem to be there,’ says Jennifer Glass at the Georgia Institute of Technology in Atlanta, US.
![Scott Wankel of Woods Hole Oceanographic Institute in Massachusetts believes that the ‘exciting’ findings could solve a key mystery: ‘For a long time we’ve known that whatever nitrous oxide was getting out into the atmosphere was made in the upper [ocean] layer, and we thought that was nitrification by ammonia-oxidising bacteria and archaea – but they don’t like light,’ he says. ‘Here all you need is for the upper metre of seawater to have some organic matter in it, and the nitrous oxide will be quickly released to the atmosphere … it really could be driving the entire bus of the oceanic flux of nitrous oxide to the atmosphere, or at least a very large part of it.’](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:j3jocydwe4cpivirfuw47mhg/bafkreic2dwimpjer575f5snd4mv5bhdrqs2j7vp7hz6ovjhoevt3kd7lqe)
Scott Wankel of Woods Hole Oceanographic Institute in Massachusetts believes that the ‘exciting’ findings could solve a key mystery: ‘For a long time we’ve known that whatever nitrous oxide was getting out into the atmosphere was made in the upper [ocean] layer, and we thought that was nitrification by ammonia-oxidising bacteria and archaea – but they don’t like light,’ he says. ‘Here all you need is for the upper metre of seawater to have some organic matter in it, and the nitrous oxide will be quickly released to the atmosphere … it really could be driving the entire bus of the oceanic flux of nitrous oxide to the atmosphere, or at least a very large part of it.’
I am truly amazed by the reception our discovery has received in the scientific community 🥰🥰🥰
#Photochemodenitrification
#Photochemical #NitrousOxide
@isabel-reche.bsky.social
Fragments taken from this article in #ChemistryWorld
www.chemistryworld.com/news/inorgan...
