Global Change & Genomics Biogeochemistry Research Group

🧅🔥 Also, it was time to renovate our group photo thanks to our annual calçotada! It was supposed to be a sunny day, but we're actually glad it's raining—our rivers and reservoirs need it! 🌧️💧

Biogeochemical Controls on Latitudinal (42°N to 70°S) and Depth Distribution of Organophosphate Esters in the Atlantic and Southern Oceans Large-scale oceanic assessments are key for determining the persistence and long-range transport potential of organic pollutants, but there is a dearth of these for organophosphate esters (OPEs), wide...

📖 Read more: doi.org/10.1021/acs....

@nurito.bsky.social @mariavilacosta.bsky.social a.bsky.social

Key findings are:

📌 OPE show higher concentrations in equatorial waters and decrease toward the poles.
📌 The biological pump plays a crucial role in sinking OPEs from surface waters.
📌 OPE trends at 2000m depth mirror those at the surface, revealing long-term accumulation in deep waters.

Biogeochemical Controls on Latitudinal (42°N to 70°S) and Depth Distribution of Organophosphate Esters in the Atlantic and Southern Oceans Large-scale oceanic assessments are key for determining the persistence and long-range transport potential of organic pollutants, but there is a dearth of these for organophosphate esters (OPEs), wide...

🌊 New paper alert! 🚢✨ Excited to share our latest research on organophosphate esters in the Atlantic and Southern Oceans! We investigated their latitudinal and depth distribution, uncovering key biogeochemical processes that shape their fate in the ocean.

@pubs.acs.org

Enhancing Molecular Characterization of Dissolved Organic Matter by Integrative Direct Infusion and Liquid Chromatography Nontargeted Workflows Dissolved organic matter (DOM) in aquatic systems is a highly heterogeneous mixture of water-soluble organic compounds, acting as a major carbon reservoir driving biogeochemical cycles. Understanding ...

📄 Read more here: pubs.acs.org/doi/10.1021/...

🔬 Key highlights:
✅ Detection of 7,000+ molecular formulas across samples
✅ Structural-level characterization for 16% of the molecular space
✅ Integration of MS2 spectral data & in silico structure prediction

#NonTargetAnalysis #HRMS #DissolvedOrganicMatter #EnvironmentalChemistry #DOM

In this study, we demonstrated a comprehensive workflow combining direct infusion (DI) and liquid chromatography (LC) high-resolution mass spectrometry (HRMS) to characterize dissolved organic matter (DOM) at both molecular and structural levels across different water sources.

🚨 Paper alert from the non-target analysis team of our group! 🚨

jessicapatrone.bsky.social

@mariavilacosta.bsky.social @nurito.bsky.social

Left panel shows a map with the ocean regions and the location were the paper's experiments were performed. Top right panel shows the correlation between OPE loss due to degradation and bacterial production fold change for OPE EHDPP. Bottom right panel shows an ilustration of bacteria over an OPE molecule.

Microbial activity was closely linked to OPE depletion, showing that bacteria play a key role in breaking down these pollutants. Our findings highlight how environmental conditions shape pollutant biodegradation in the ocean!

In this work, we investigated how marine microbes break down organophosphate esters (OPEs) in the Atlantic and Southern Oceans. We found that hydrophobic OPEs degraded significantly in the Atlantic, while cold temperatures in the Southern Ocean slowed the process.

Bacterial Production Modulates the Persistence of Organophosphate Ester Flame Retardants and Plasticizers in the Ocean Understanding the biodegradation of organic pollutants is crucial for assessing the persistence and fate of these contaminants and improve their risk assessment, eventually drawing policy. The occurre...

LET'S RECAP WITH OUR LATEST PUBLICATIONS 🖨️📚 fresh from the oven our first paper from 2025 entitled "Bacterial Production Modulates the Persistence of Organophosphate Ester Flame Retardants and Plasticizers in the Ocean". Check it out! 👀 pubs.acs.org/doi/10.1021/...

Our latest group photo 📸 doing what in catalonia is the most loved team building: una calçotada 💪🏼

Here's our latest publication entitled "Enrichment of Organophosphate Esters in the Sea Surface Microlayer from the Atlantic and Southern Oceans" published at ES&T-letters

pubs.acs.org/doi/10.1021/...