Joost de Gouw
@gouwlab.bsky.social
Physicist studying organic chemistry in the atmosphere using mass spectrometry. Urban air pollution, wildfire smoke, oil and gas, indoor air. Professor at the University of Colorado Boulder. Group website at sites.google.com/view/de-gouw-lab
Where is everybody? Must have picked the wrong year…
July 31, 2025 at 4:07 PM
Where is everybody? Must have picked the wrong year…
Our groups participated in the International Congress On Far-UVC Science And Technology in Boulder this week. I was honored to present as one of the plenary speakers. Kudos to Madison Rutherford and Rebecca Mesburis for giving excellent presentations about their work. www.iuva.org/icfust-2025
June 18, 2025 at 7:16 PM
Our groups participated in the International Congress On Far-UVC Science And Technology in Boulder this week. I was honored to present as one of the plenary speakers. Kudos to Madison Rutherford and Rebecca Mesburis for giving excellent presentations about their work. www.iuva.org/icfust-2025
Dark clouds over our laboratory.
May 31, 2025 at 1:35 AM
Dark clouds over our laboratory.
Beautiful day in Boulder. A high cloud deck and temps in the 60s make for perfect hiking weather!
May 18, 2025 at 5:08 AM
Beautiful day in Boulder. A high cloud deck and temps in the 60s make for perfect hiking weather!
More photos from last week’s graduation! Congrats again to Emmy and Alex.
May 16, 2025 at 11:53 PM
More photos from last week’s graduation! Congrats again to Emmy and Alex.
Our Institute’s annual science day, the CIRES Rendezvous, may have had no lunch this year, but the turnout was possibly even higher than normal. Very good to see everyone.
May 16, 2025 at 3:12 AM
Our Institute’s annual science day, the CIRES Rendezvous, may have had no lunch this year, but the turnout was possibly even higher than normal. Very good to see everyone.
Congratulations to Emmy Longnecker and Alex Bradley who received their PhD diplomas yesterday.
May 10, 2025 at 4:18 PM
Congratulations to Emmy Longnecker and Alex Bradley who received their PhD diplomas yesterday.
A student from our group is collecting air samples at one of the biggest trash cans in the world. Our students are so motivated that they are literally willing to study what happens to our trash. That makes it all the more exasperating that the EPA just terminated the grant that supports this work.
May 2, 2025 at 3:35 PM
A student from our group is collecting air samples at one of the biggest trash cans in the world. Our students are so motivated that they are literally willing to study what happens to our trash. That makes it all the more exasperating that the EPA just terminated the grant that supports this work.
Thanks to the crew at the Laughing Goat Coffee on campus. I needed this in more ways than you can imagine.
April 25, 2025 at 4:55 PM
Thanks to the crew at the Laughing Goat Coffee on campus. I needed this in more ways than you can imagine.
Alex Bradley and Nathan Sweet were presenting today at the AQ Buffs Symposium organized by students in the Environmental Engineering Program at CU Boulder.
April 18, 2025 at 7:53 PM
Alex Bradley and Nathan Sweet were presenting today at the AQ Buffs Symposium organized by students in the Environmental Engineering Program at CU Boulder.
I worked on ion chemistry in the lab of Steve Leone. Little did I know that chemical ionization mass spectrometry was about to become the prime atmospheric measurement technique that it has become. The work put me in a perfect position to capitalize on my skills and ambitions.
April 18, 2025 at 2:36 AM
I worked on ion chemistry in the lab of Steve Leone. Little did I know that chemical ionization mass spectrometry was about to become the prime atmospheric measurement technique that it has become. The work put me in a perfect position to capitalize on my skills and ambitions.
I bought a 1979 Mercury for $700. A Canadian uncle had told me to buy a V8 "because they always keep running". And run it did for the year I owned it. The car was all red, outside and in, including the seats, wheel and dash.
April 18, 2025 at 2:36 AM
I bought a 1979 Mercury for $700. A Canadian uncle had told me to buy a V8 "because they always keep running". And run it did for the year I owned it. The car was all red, outside and in, including the seats, wheel and dash.
I first travelled to the US on April 17, 1994; exactly 31 years ago. It's incredible how fast time moves. I was a freshly minted PhD on my way to a postdoc in Boulder. I knew nothing about Colorado. I assumed I was going to stay 1-2 years, but am still here and haven't regretted it; still don't.
April 18, 2025 at 2:12 AM
I first travelled to the US on April 17, 1994; exactly 31 years ago. It's incredible how fast time moves. I was a freshly minted PhD on my way to a postdoc in Boulder. I knew nothing about Colorado. I assumed I was going to stay 1-2 years, but am still here and haven't regretted it; still don't.
It was my pleasure and honor to be a plenary speaker at the National Air Toxics Conference that is being held in Denver this week. I spoke about urban fires and the need to do more research on the toxics released from those fires, and the cleaning of homes.
April 17, 2025 at 3:29 PM
It was my pleasure and honor to be a plenary speaker at the National Air Toxics Conference that is being held in Denver this week. I spoke about urban fires and the need to do more research on the toxics released from those fires, and the cleaning of homes.
A new paper from our group uses machine learning to make a seasonal correction to TROPOMI methane data over Colorado. A future paper will use this correction and other retrievals to study methane emissions from oil and gas production. The work was funded by CDPHE. doi.org/10.5194/amt-18-1675-2025
April 14, 2025 at 4:26 AM
A new paper from our group uses machine learning to make a seasonal correction to TROPOMI methane data over Colorado. A future paper will use this correction and other retrievals to study methane emissions from oil and gas production. The work was funded by CDPHE. doi.org/10.5194/amt-18-1675-2025
Just a photo from the Flatirons in Boulder to cleanse your timeline.
April 6, 2025 at 9:49 PM
Just a photo from the Flatirons in Boulder to cleanse your timeline.
And this afternoon Emmy Longnecker successfully defended her PhD thesis on vapor pressure calculations and the formation of films on indoor surfaces. Congrats to Emmy!
April 2, 2025 at 9:20 PM
And this afternoon Emmy Longnecker successfully defended her PhD thesis on vapor pressure calculations and the formation of films on indoor surfaces. Congrats to Emmy!
This morning Alex Bradley successfully defended his PhD thesis on Denver air quality, methane in Colorado and electric power generation in an era of expanding renewables. Congrats Dr. Bradley!
April 2, 2025 at 5:10 PM
This morning Alex Bradley successfully defended his PhD thesis on Denver air quality, methane in Colorado and electric power generation in an era of expanding renewables. Congrats Dr. Bradley!
Our group has a busy week coming up. Madison Rutherford got things started today by presenting her third-year talk. She talked about the effects of GUV on indoor air, and VOC emissions from industry and from landfills in Colorado. Two PhD defenses will follow on Wednesday.
March 31, 2025 at 7:57 PM
Our group has a busy week coming up. Madison Rutherford got things started today by presenting her third-year talk. She talked about the effects of GUV on indoor air, and VOC emissions from industry and from landfills in Colorado. Two PhD defenses will follow on Wednesday.
Also an honor to visit the university where Sherwood Rowland and Mario Molina did their research on stratospheric ozone depletion. An excellent reminder that basic research is literally essential for the future of mankind.
February 20, 2025 at 7:48 PM
Also an honor to visit the university where Sherwood Rowland and Mario Molina did their research on stratospheric ozone depletion. An excellent reminder that basic research is literally essential for the future of mankind.
Thank you Barbara Finlayson-Pitts for the invitation to visit @ucirvine.bsky.social and give a seminar on our work. I talked about air quality in Los Angeles and Denver, and about the aftermath of the Marshall Fire.
February 20, 2025 at 7:48 PM
Thank you Barbara Finlayson-Pitts for the invitation to visit @ucirvine.bsky.social and give a seminar on our work. I talked about air quality in Los Angeles and Denver, and about the aftermath of the Marshall Fire.
I was interviewed for this article in de Volkskrant about the impacts of new policies on science in the US. I expressed deep concerns about the continuation of essential measurements, like greenhouse gases and ozone depleting substances, and about training the next generation of scientists.
February 15, 2025 at 5:28 PM
I was interviewed for this article in de Volkskrant about the impacts of new policies on science in the US. I expressed deep concerns about the continuation of essential measurements, like greenhouse gases and ozone depleting substances, and about training the next generation of scientists.
New group photo. I’m grateful for this bunch to keep me going.
February 11, 2025 at 11:06 PM
New group photo. I’m grateful for this bunch to keep me going.
Many, many people are reaching out with questions about the impact of the LA fires on their homes and environment. There are some things we can say based on the research that was done after the Marshall Fire in Colorado. Here is a short thread to summarize what was learned. @ciresnews.bsky.social
January 21, 2025 at 7:09 PM
Many, many people are reaching out with questions about the impact of the LA fires on their homes and environment. There are some things we can say based on the research that was done after the Marshall Fire in Colorado. Here is a short thread to summarize what was learned. @ciresnews.bsky.social
Two new graduate students have joined our group. Matt Shulman comes to us from Santa Clara University and will work on indoor air cleaning. Piper Read comes from the University of Pittsburgh and will start on urban VOC chemistry. Welcome Piper and Matt!
January 10, 2025 at 12:17 AM
Two new graduate students have joined our group. Matt Shulman comes to us from Santa Clara University and will work on indoor air cleaning. Piper Read comes from the University of Pittsburgh and will start on urban VOC chemistry. Welcome Piper and Matt!