Teles successfully defended his PhD thesis exploring atmospheric reactive chlorine on Nov 30. Congratulations!
The newly-minted Dr. Furlani after his defense.
Masks off briefly for this photo at the celebration of Dr. Furlani!
Team members attend Fluoros Global 2021
Cora, Daniel, and Jessica attended the Fluoros Global 2021 meeting virtually earlier this month.
Cora presented an invited talk on the global distribution and transport of PFAS, Jessica presented a poster on using wastewater treatment plant influent measurements to identify PFAS sources, and Daniel presented a poster on PFAS measurements from an ice core.
Jessica also won a Fluoros 2021 ACS Environmental Poster Award. Congratulations!
Jessica presents her award-winning poster during the awards session at Fluoros Global 2021.
Papers measuring tropospheric HCl published
Two papers from our team related to tropospheric hydrogen chloride (HCl) were recently published. HCl represents the primary gaseous reservoir of reactive chlorine, which has been shown to impact air quality. As a highly surface-active gas, obtaining accurate measurements of gaseous HCl is challenging.
A paper led by Teles validated a new commercial spectroscopic instrument for the measurement of tropospheric HCl. He performed laboratory and ambient intercomparisons to demonstrate the accuracy and precision of this robust and compact new instrument. The paper was published in Atmospheric Measurement Techniques.
Another paper led by Andrea used the same commercial instrument to make measurements of HCl in a coastal city (St. John’s, NL) in the spring and a continental city (Toronto, ON) in the winter. By comparing the HCl measurements with co-located supporting measurements and a global model, we can better understand the sources of HCl in these areas. The paper was published in ACS Earth & Space Chemistry.
The HCl analyzer in action.
Collaborative papers published
Members of the group are often busy working on papers with our collaborators. Three papers have been recently published:
A paper describing a new calibration source for HONO that generates stable, atmospherically-relevant levels was recently published in Atmospheric Measurement Techniques: Lao, M., Crilley, L.R., Salehpoor, L., Furlani, T.C., Bourgeois, I., Neuman, A., Rollins, A.W., Veres, P.R., Washenfelder, R.A., Womack, C.C., Young, C.J., VandenBoer, T.C.* A portable, robust, stable and tunable calibration source for gas-phase nitrous acid (HONO). Atmospheric Measurement Techniques.
A new analysis of data collected during the CalNex campaign in 2010 examining budgets of total reactive carbon was put together by Colette Heald of MIT and published in Environmental Science and Technology: Heald, C.L.,* de Gouw, J., Goldstein, A.H., Guenther, A.B., Hayes, P.L., Hu, W., Isaacman-Vanwertz, G., Jimenez, J.L., Keutsch, F.N., Koss, A.R., Misztal, P.K., Rappengluck, B., Roberts, J.M., Stevens, P.S., Washenfelder, R.A., Warneke, C., Young, C.J. Contrasting reactive organic carbon observations in the southeast United States (SOAS) and southern California (CalNex). Environmental Science and Technology.
The first paper from the Reactive Oxidants from Cleaning in a Chamber (ROCC) campaign was recently published, demonstrating the impact of non-bleach cleaners on gas-phase hydrogen peroxide: Zhou, S., Liu, Z., Wang, Z., Young, C.J., VandenBoer, T.C., Guo, B., Zhang, J., Carslaw, N., Kahan, T.F.* Hydrogen peroxide emission and fate indoors during non-bleach cleaning: A chamber and modeling study. Environmental Science and Technology.
The timely release of this cleaning study garnered attention from the media, with articles in CBC and other media outlets.
Members of the ROCC team hard at work during the measurement intensive.
Welcome new team members!
This fall we add three new members to our team: new graduate student, Dylan Indos, and new postdoctoral researchers, Dr. Shira Joudan and Dr. Ye Tao. Welcome!
Congratulations award winners!
Congratulations to our team members who won scholarships this year!
Daniel Persaud: York University Carswell Scholarship
Alessia Colussi: NSERC Canada Graduate Scholarship (Masters)
Lisa Azzarello: Ontario Graduate Scholarship
Short-chain PFAS in ice cores paper published and featured in the news
Our team’s work (with student authors Heidi and Daniel) on short-chain perfluorocarboxylic acids in two Arctic ice cores was recently published in Geophysical Research Letters. The work was featured in several media news outlets, including BBC, Scientific American, C&EN, CBC, etc.
Cora at AGU Fall Meeting
Cora was in San Francisco last week at the American Geophysical Union Fall Meeting. She presented HCl measurements from Teles, Andrea, and Alex.
Congratulations Dr. Bautista!
Joseph successfully defended his thesis on Friday November 25. Congratulations!!!
Group attends SETAC North America meeting in Toronto
This year’s Society of Environmental Toxicology and Chemistry (SETAC) North America meeting was held in Toronto in early November. Joseph, Teles, Devon, Jessica, Daniel, Alex, and Elizabeth (in absentia) all presented their work. Special congratulations to Devon and Daniel who won presentation awards!
Dinner for group and alumni during SETAC. Thanks to Robbie D for this classic group selfie!
Daniel presents his poster at SETAC (photo credit A. De Silva).
Making new friends at SETAC.