If you're in #imperialbeach, we are looking for volunteers to help us place air quality sensors around. It's crucial to understand what is in the air so we can properly tackle this cross-border sewage crisis together. Sign up at airborne.ucsd.edu/citizen-scienc…

We successfully got out of our first escape room!

Congratulations to Dr. Paul Ryan Tumminello! Ryan will be continuing his research career as a postdoctoral scholar with Jim Burkholder at NOAA

Our recent work published in ACS Analytical Chemistry Journals by Samantha Kruse used data collected at SeaSCAPE 2019 as a part of CAICE to show how EESI-ToF sensitivity is dependent on particle phase state. UCSD Chem Biochem

Earlier this month we had a wonderful time hosting the 40th annual Informal Gathering of Atmospheric Sciences and Photochemistry Conference (IGASP). Thank you to everyone who came out to participate! UCSD Chem Biochem

Recent work published in Environ. Sci. Atmos. by Lincoln Mehndiratta, uses measurements done in the Grassian group with a Raman microscope; studying immersion ice nucleation behavior of lipid particles, also examining how phase and droplet size influence this process!

Our recent work published in Environmental Science & Technology Journals by Adam Cooper, PhD examines the photo-initiated degradation of organic UV filters compared to SSA mimics under solar simulated light. UCSD Chem Biochem pubs.acs.org/doi/10.1021/ac…

Organic #UVFilter oxybenzone (BP3) persists longer in seawater, but undergoes rapid photodegradation upon transfer to sea spray #aerosol (SSA), resulting in the generation of toxic photoproducts. UCSD Chem Biochem UC San Diego ACS ES&T Air #OpenAccess: go.acs.org/bmI

🚨 New paper just dropped 🚨 Excited to share a new paper in ES&T from Slade Group about sea spray bounce fractions and viscosity!! Key points include: 1) 40nm particles had 3x bounce factor than 100nm 2) Kelvin effect/density more impactful than RH pubs.acs.org/doi/10.1021/ac…

Our recent work published in Environmental Science & Technology Journals by Dr. Ryan Tumminello examines the role of divalent cation enrichment, surface tension, and the Kelvin effect on sea spray aerosol bounce fraction and estimated viscosity! UCSD Chem Biochem pubs.acs.org/doi/10.1021/ac…

Excited to share our new perspective paper in ES&T on atmospheric micro- & nanoplastic particles! 🧪 We cover recent advances & future directions in this emerging area. Great collaboration with Nate Slade, Arthur Chan & Andy Ault! 📄 pubs.acs.org/doi/10.1021/ac… #Microplastics

Our paper just came out in Science Advances showing the chemicals in the air in Imperial Beach (many aerosolized from the polluted Tijuana River). Thanks to the entire team-especially Prof. Nate Slade and his (then) graduate student (now Dr.) Adam Cooper. today.ucsd.edu/story/tijuana-…

Our new article in Science Advances just dropped along with the press release! Adam Cooper, PhD UC San Diego The Airborne Institute Article: Identifying wastewater chemicals in coastal aerosols | Science Advances science.org/doi/10.1126/sc… Press Release: today.ucsd.edu/story/tijuana-…

Our communities deserve nothing less than clean water and clean air to breathe! We've secured over half a billion in federal funds to combat pollution, but this is why we've called for a state of emergency, funding for air quality monitoring, and CDC research. We won't let up.

Pollution from the Tijuana River is ending up in the air near the border, study finds latimes.com/environment/st…

Going down to meet Sen. Cory Booker ... so cool that this happens the day after our paper dropped.... nbcsandiego.com/news/local/sen…

Tijuana River sewage isn’t just a water problem, it also impacts air quality. I've fought for several years to address this, securing hundreds of millions in federal funds. We're working in a bipartisan way towards a solution. Can't happen fast enough. sandiegouniontribune.com/2025/05/28/ucs…

Cross-border pollution isn’t just harming our environment — it’s threatening our neighbors’ health, shutting down businesses, and closing beaches. Thank you to Sen. Cory Booker for joining us to see firsthand what our communities are dealing with and why we’re continuing to fight for

Coastal aerosols contain wastewater pollutants cen.acs.org/environment/at… via C&EN (Chemical & Engineering News)

🎉 Congrats to PhD student Sahir Gagan Sahir Gagan from my group for publishing in ES&T! His new paper quantifies the atmospheric lifetime, aging, and CCN activity of nanoplastic particles, a major step in examining their atmospheric/climate process. 🔗 pubs.acs.org/doi/10.1021/ac…