Dan Westervelt
@dwesty.bsky.social
Associate professor in climate change, atmospheric chemistry, and air pollution at Columbia-Lamont @lamontearth.bsky.social
I am thrilled and honored to announce that I was awarded the 2025 Columbia University Graduate School of Arts and Sciences Faculty Mentoring award, in recognition of excellence in mentoring of masters and doctoral research students. www.gsas.columbia.edu/news/2025-gs...
May 14, 2025 at 8:20 PM
I am thrilled and honored to announce that I was awarded the 2025 Columbia University Graduate School of Arts and Sciences Faculty Mentoring award, in recognition of excellence in mentoring of masters and doctoral research students. www.gsas.columbia.edu/news/2025-gs...
Update: real time aerosol chemical composition data is flowing! @lamontearth.bsky.social @columbiaclimate.bsky.social
February 11, 2025 at 9:42 AM
Update: real time aerosol chemical composition data is flowing! @lamontearth.bsky.social @columbiaclimate.bsky.social
As we work to get things set up, here's a sneak preview of some recent total PM2.5 mass data. Looking forward to seeing the speciation soon!
February 6, 2025 at 6:52 AM
As we work to get things set up, here's a sneak preview of some recent total PM2.5 mass data. Looking forward to seeing the speciation soon!
Decided to start stockpiling these...
February 4, 2025 at 4:36 PM
Decided to start stockpiling these...
Had a really great visit yesterday to Johns Hopkins University where I delivered the Wolman Seminar in environmental engineering. And of course an excellent visit with Pete DeCarlo's lab including his fantastic new mobile air chemistry lab publichealth.jhu.edu/departments/...
December 4, 2024 at 3:48 PM
Had a really great visit yesterday to Johns Hopkins University where I delivered the Wolman Seminar in environmental engineering. And of course an excellent visit with Pete DeCarlo's lab including his fantastic new mobile air chemistry lab publichealth.jhu.edu/departments/...
Here's a recent image from NOAA GOES satellite. Up by the NY/NJ border you can see a plume of smoke originating from a major fire and blow southeast right into NYC.
November 9, 2024 at 3:59 PM
Here's a recent image from NOAA GOES satellite. Up by the NY/NJ border you can see a plume of smoke originating from a major fire and blow southeast right into NYC.
Almost 5 years ago our group was the first to co-locate air sensors at the Queens college EPA monitoring site. Nowadays, the agency is nearly out of space as the field has exploded locally. We were back last week for another great visit and co-location:
October 30, 2023 at 7:09 AM
Almost 5 years ago our group was the first to co-locate air sensors at the Queens college EPA monitoring site. Nowadays, the agency is nearly out of space as the field has exploded locally. We were back last week for another great visit and co-location:
Of course the real question is the data any good? I'll test that in my lab eventually. The interface seems okay, and you can see the real data, though not sure what a "VOCs index" is.
October 15, 2023 at 9:58 PM
Of course the real question is the data any good? I'll test that in my lab eventually. The interface seems okay, and you can see the real data, though not sure what a "VOCs index" is.
Gained some followers so I figured I should post! Decided to order this Amazon "Smart Air Quality Monitor" and it looks like this. It goes for $48.99. Easy to install and compatible with Alexa.
October 15, 2023 at 9:56 PM
Gained some followers so I figured I should post! Decided to order this Amazon "Smart Air Quality Monitor" and it looks like this. It goes for $48.99. Easy to install and compatible with Alexa.
No GIFs yet so here you go
October 13, 2023 at 10:21 PM
No GIFs yet so here you go
The gang's all here #airsensorslab
August 30, 2023 at 4:48 PM
The gang's all here #airsensorslab
Some highlights from the Heterogeneous Climate Forcing project at the Norwegian Academy of Sciences. Some really exciting work on aerosol influence on climate and air quality coming from this team over the next year. And lots of in-person time in Oslo which is always a plus!
August 26, 2023 at 7:52 AM
Some highlights from the Heterogeneous Climate Forcing project at the Norwegian Academy of Sciences. Some really exciting work on aerosol influence on climate and air quality coming from this team over the next year. And lots of in-person time in Oslo which is always a plus!
Some scenes yesterday from Day 1 of the Kenyatta University - Columbia University Air Quality Certificate Program. From Nairobi, Kenya.
August 15, 2023 at 5:57 AM
Some scenes yesterday from Day 1 of the Kenyatta University - Columbia University Air Quality Certificate Program. From Nairobi, Kenya.
In all its glory, the sensor co-location site at University of Ghana. Teledyne, TEOM, PurpleAir, Clarity, QuantAQ, Airnote, AirGradient, IQAir, probably others. And of course many more to come via Afri-SET @subu.bsky.social @cleanaironea.bsky.social. Also the basis of the recent Raheja et al. 2023
August 10, 2023 at 5:49 PM
In all its glory, the sensor co-location site at University of Ghana. Teledyne, TEOM, PurpleAir, Clarity, QuantAQ, Airnote, AirGradient, IQAir, probably others. And of course many more to come via Afri-SET @subu.bsky.social @cleanaironea.bsky.social. Also the basis of the recent Raheja et al. 2023
When your research travel schedule is completely out of control. Not surprisingly, Delta couldn't find me an itinerary that worked.
July 5, 2023 at 10:22 PM
When your research travel schedule is completely out of control. Not surprisingly, Delta couldn't find me an itinerary that worked.