Donald E. Matthieu III
@donaldmatthieu.bsky.social
soil, water, & environmental science; remediation; soil & groundwater pollution dynamics; subsurface hydrology. Personal opinions.
Pinned
Ambient Trichloroethylene Exposure and Parkinson Disease Risk in Medicare Beneficiaries | Neurology
Background and ObjectivesTrichloroethylene (TCE) is an important environmental contaminant in the United States
due to widespread use industrially. Epidemiologic studies suggest that occupational
expo...
www.neurology.org
TCE is still a concern in the USA. "Epidemiologic studies suggest that occupational exposure to TCE and TCE-contaminated drinking water may increase the risk of Parkinson's disease (PD)." TCE has been banned for sale and use in the USA, but other places have not. www.neurology.org/doi/10.1212/...
Reposted by Donald E. Matthieu III
I used to think that our current period in the geologic record would be marked by plastic, but now I wonder if it's PFAS.
The cancer-causing forever chemical polluting most UK rivers
TFA has also been found in rivers across the globe
www.independent.co.uk
December 1, 2025 at 12:28 PM
I used to think that our current period in the geologic record would be marked by plastic, but now I wonder if it's PFAS.
Reposted by Donald E. Matthieu III
The first thing we always did when we were looking for a house in Iowa City was to look at the floodplain maps - at the time Zillow did not provide this info. Not having this as readily accessible will make harder for people who do not know how/where to look for this info to make informed decisions.
Realtors know that, in many parts of the country, if you educate people about climate risk, the housing market will collapse.
www.nytimes.com/2025/11/30/c...
www.nytimes.com/2025/11/30/c...
Zillow Removes Climate Risk Scores From Home Listings
www.nytimes.com
December 1, 2025 at 4:22 AM
The first thing we always did when we were looking for a house in Iowa City was to look at the floodplain maps - at the time Zillow did not provide this info. Not having this as readily accessible will make harder for people who do not know how/where to look for this info to make informed decisions.
Reposted by Donald E. Matthieu III
Calling all #rootexudate enthusiasts!
Join our @egubg.bsky.social session (with Taryn Bauerle, @melaniebrunn.bsky.social, Maire Holz & Sami Ullah) at the @egu.eu 2026 General Assembly on exudate composition, function & persistence.
Submit by 15 Jan meetingorganizer.copernicus.org/EGU26/sessio...
Join our @egubg.bsky.social session (with Taryn Bauerle, @melaniebrunn.bsky.social, Maire Holz & Sami Ullah) at the @egu.eu 2026 General Assembly on exudate composition, function & persistence.
Submit by 15 Jan meetingorganizer.copernicus.org/EGU26/sessio...
November 3, 2025 at 5:20 PM
Calling all #rootexudate enthusiasts!
Join our @egubg.bsky.social session (with Taryn Bauerle, @melaniebrunn.bsky.social, Maire Holz & Sami Ullah) at the @egu.eu 2026 General Assembly on exudate composition, function & persistence.
Submit by 15 Jan meetingorganizer.copernicus.org/EGU26/sessio...
Join our @egubg.bsky.social session (with Taryn Bauerle, @melaniebrunn.bsky.social, Maire Holz & Sami Ullah) at the @egu.eu 2026 General Assembly on exudate composition, function & persistence.
Submit by 15 Jan meetingorganizer.copernicus.org/EGU26/sessio...
Reposted by Donald E. Matthieu III
Check out this #Root methods course organised at Aarhus University in May 2026! Register using the link below.
phd.tech.au.dk/for-phd-stud...
phd.tech.au.dk/for-phd-stud...
November 25, 2025 at 7:43 AM
Check out this #Root methods course organised at Aarhus University in May 2026! Register using the link below.
phd.tech.au.dk/for-phd-stud...
phd.tech.au.dk/for-phd-stud...
Reposted by Donald E. Matthieu III
Trump announced that he would pardon Juan Orlando Hernández, who was serving 45 years in prison for orchestrating a vast drug trafficking conspiracy that raked in millions for cartels while keeping Honduras one of Central America’s poorest, most violent, and most corrupt countries.
The Ex-President Whom Trump Plans to Pardon Flooded America With Cocaine
www.nytimes.com
November 30, 2025 at 10:11 PM
Trump announced that he would pardon Juan Orlando Hernández, who was serving 45 years in prison for orchestrating a vast drug trafficking conspiracy that raked in millions for cartels while keeping Honduras one of Central America’s poorest, most violent, and most corrupt countries.
Reposted by Donald E. Matthieu III
"Runctitiononal features"? "Medical fymblal"? "1 Tol Line storee"? This gets worse the longer you look at it. But it's got to be good, because it was published in Nature Scientific Reports last week: www.nature.com/articles/s41... h/t @asa.tsbalans.se
November 27, 2025 at 9:30 AM
"Runctitiononal features"? "Medical fymblal"? "1 Tol Line storee"? This gets worse the longer you look at it. But it's got to be good, because it was published in Nature Scientific Reports last week: www.nature.com/articles/s41... h/t @asa.tsbalans.se
Reposted by Donald E. Matthieu III
This is great. More please! The more folk who rely on LLMs for funding planning means my chances go up even before I submit!
November 30, 2025 at 5:54 PM
This is great. More please! The more folk who rely on LLMs for funding planning means my chances go up even before I submit!
Reposted by Donald E. Matthieu III
The McMaster Ecohydrology Lab presents the 2025 #NobelPeatPrize nominees! We encourage the #peatland community to give each of these wonderful papers a read.
The winner will be announced on December 11th. #PeatPaper
The winner will be announced on December 11th. #PeatPaper
November 27, 2025 at 8:41 PM
The McMaster Ecohydrology Lab presents the 2025 #NobelPeatPrize nominees! We encourage the #peatland community to give each of these wonderful papers a read.
The winner will be announced on December 11th. #PeatPaper
The winner will be announced on December 11th. #PeatPaper
Reposted by Donald E. Matthieu III
An honor and dream come true to perform alongside Yo-Yo Ma, presented by Celebrity Series at Boston Symphony Hall. 💜
🎼Ave Maria (Bach/Gounod)
🎼Ave Maria (Bach/Gounod)
November 22, 2025 at 6:29 PM
An honor and dream come true to perform alongside Yo-Yo Ma, presented by Celebrity Series at Boston Symphony Hall. 💜
🎼Ave Maria (Bach/Gounod)
🎼Ave Maria (Bach/Gounod)
Reposted by Donald E. Matthieu III
Immunologist Zachary Rubin explains how, according to a recent study, living through a pandemic might accelerate brain aging.
The COVID Pandemic May Have Aged Your Brain—Even If You Never Got Sick
Immunologist Zachary Rubin explains how, according to a recent study, living through a pandemic might accelerate brain aging.
www.scientificamerican.com
November 7, 2025 at 3:39 PM
Immunologist Zachary Rubin explains how, according to a recent study, living through a pandemic might accelerate brain aging.
Reposted by Donald E. Matthieu III
Dang, hard disagree. The best papers to write and read are works of art, not merely a list of data and statements.
Don’t let LLMs take this away too, for gods sake.
Don’t let LLMs take this away too, for gods sake.
I honestly think we would all be a lot more productive if papers were bullet points with plots.
November 14, 2025 at 10:22 PM
Dang, hard disagree. The best papers to write and read are works of art, not merely a list of data and statements.
Don’t let LLMs take this away too, for gods sake.
Don’t let LLMs take this away too, for gods sake.
Reposted by Donald E. Matthieu III
Use of trichloroethylene for making separators in lithium-ion batteries will be phased out within 5 years under a new US regulation. cen.acs.org/policy/chemi...
EPA bans 2 common chlorinated solvents
Trichloroethylene and perchloroethylene phase-out plan includes exemptions for some critical applications
cen.acs.org
December 13, 2024 at 2:21 PM
Use of trichloroethylene for making separators in lithium-ion batteries will be phased out within 5 years under a new US regulation. cen.acs.org/policy/chemi...
Reposted by Donald E. Matthieu III
Trichloroethylene Toxic Substances Control Act Rule: 124 Environmental Organizations Transmit Letter to U.S. Environmental Protection Agency Seeking Reinstatement
Trichloroethylene Toxic Substances Control Act Rule: 124 Environmental Organizations Transmit Letter to U.S. Environmental Protection Agency Seeking Reinstatement
124 community, environmental, public health, and other organizations jointly transmitted a March 2025 letter to the United States Environmental...
www.jdsupra.com
April 3, 2025 at 2:05 PM
Trichloroethylene Toxic Substances Control Act Rule: 124 Environmental Organizations Transmit Letter to U.S. Environmental Protection Agency Seeking Reinstatement
Are the optics bad here? Should judge have ordered jury 2 only consume soup for lunch & no sandwich? "The jury, which feasted on sandwiches for lunch Thursday, according 2 a person familiar with jury lunches, deliberated the charges 4 several hours Wednesday & Thursday before delivering the verdict"
BREAKING: JUSTICE DEPARTMENT EATS A LOSS IN 'SANDWICH GUY' CASE AS JURORS FIND DEFENDANT NOT GUILTY www.nbcnews.com/politics/jus...
Jury acquits D.C. 'sandwich guy' charged with chucking a sub at a federal agent
Sean Dunn faced single misdemeanor offense after federal grand jurors refused to indict him on the felony charge sought by prosecutors.
www.nbcnews.com
November 7, 2025 at 9:38 PM
Are the optics bad here? Should judge have ordered jury 2 only consume soup for lunch & no sandwich? "The jury, which feasted on sandwiches for lunch Thursday, according 2 a person familiar with jury lunches, deliberated the charges 4 several hours Wednesday & Thursday before delivering the verdict"
Well, the verdict has been rendered. The jury decided that the prosecutors threw them a bologna sandwich of charges and declined to find the defendant guilty of alleged footlong felonies. There was no meat in the prosecutors' sandwich accusations. It was only a tomato sandwich.
BREAKING: JUSTICE DEPARTMENT EATS A LOSS IN 'SANDWICH GUY' CASE AS JURORS FIND DEFENDANT NOT GUILTY www.nbcnews.com/politics/jus...
Jury acquits D.C. 'sandwich guy' charged with chucking a sub at a federal agent
Sean Dunn faced single misdemeanor offense after federal grand jurors refused to indict him on the felony charge sought by prosecutors.
www.nbcnews.com
November 7, 2025 at 7:04 PM
Well, the verdict has been rendered. The jury decided that the prosecutors threw them a bologna sandwich of charges and declined to find the defendant guilty of alleged footlong felonies. There was no meat in the prosecutors' sandwich accusations. It was only a tomato sandwich.
Article Quote: "The jury — which feasted on sandwiches for lunch Thursday, according to a person familiar with jury lunches—deliberated the charges for several hours Wednesday and Thursday before delivering the verdict." May I suggest a conspiracy theory that these sandwiches corrupted the jury? lol
BREAKING: JUSTICE DEPARTMENT EATS A LOSS IN 'SANDWICH GUY' CASE AS JURORS FIND DEFENDANT NOT GUILTY www.nbcnews.com/politics/jus...
Jury acquits D.C. 'sandwich guy' charged with chucking a sub at a federal agent
Sean Dunn faced single misdemeanor offense after federal grand jurors refused to indict him on the felony charge sought by prosecutors.
www.nbcnews.com
November 7, 2025 at 6:59 PM
Article Quote: "The jury — which feasted on sandwiches for lunch Thursday, according to a person familiar with jury lunches—deliberated the charges for several hours Wednesday and Thursday before delivering the verdict." May I suggest a conspiracy theory that these sandwiches corrupted the jury? lol
Reposted by Donald E. Matthieu III
If the sandwich don’t split, you must acquit
Defense says that the officer's testimony was "very questionable" because he said the sandwich both exploded in spray of mustard and onions and also landed in its wrapper on the ground.
November 5, 2025 at 8:29 PM
If the sandwich don’t split, you must acquit
Ladies & gentlemen of the jury: don't let the fact that the sandwich had turkey on it distract you from the fact that beef, or the having of beef, is the core issue in this case. The sandwich thrower might have had beef but really the officer did not. In the absence of beef the charges cannot stand
Defense says that the officer's testimony was "very questionable" because he said the sandwich both exploded in spray of mustard and onions and also landed in its wrapper on the ground.
November 6, 2025 at 1:20 AM
Ladies & gentlemen of the jury: don't let the fact that the sandwich had turkey on it distract you from the fact that beef, or the having of beef, is the core issue in this case. The sandwich thrower might have had beef but really the officer did not. In the absence of beef the charges cannot stand
TCE is still a concern in the USA. "Epidemiologic studies suggest that occupational exposure to TCE and TCE-contaminated drinking water may increase the risk of Parkinson's disease (PD)." TCE has been banned for sale and use in the USA, but other places have not. www.neurology.org/doi/10.1212/...
Ambient Trichloroethylene Exposure and Parkinson Disease Risk in Medicare Beneficiaries | Neurology
Background and ObjectivesTrichloroethylene (TCE) is an important environmental contaminant in the United States
due to widespread use industrially. Epidemiologic studies suggest that occupational
expo...
www.neurology.org
November 5, 2025 at 6:15 AM
TCE is still a concern in the USA. "Epidemiologic studies suggest that occupational exposure to TCE and TCE-contaminated drinking water may increase the risk of Parkinson's disease (PD)." TCE has been banned for sale and use in the USA, but other places have not. www.neurology.org/doi/10.1212/...
Reposted by Donald E. Matthieu III
Extremely 2025 coded - Firefighters are donating their plasma to reduce the forever chemicals in their blood. "If a firefighter donates plasma six times a year, the PFAS in their blood could be reduced by up to 60%." (The plasma is "cleaned" before being used.) www.yourvalley.net/glendale-ind...
Glendale firefighters donate plasma to change out PFAS - Glendale Independent
Across Arizona and the United States, firefighters are facing a cancer epidemic. One cause of this spike in cancer is the record high amounts of per- and polyfluoroalkyl substances (PFAS), also …
www.yourvalley.net
November 4, 2025 at 7:23 PM
Extremely 2025 coded - Firefighters are donating their plasma to reduce the forever chemicals in their blood. "If a firefighter donates plasma six times a year, the PFAS in their blood could be reduced by up to 60%." (The plasma is "cleaned" before being used.) www.yourvalley.net/glendale-ind...
Reposted by Donald E. Matthieu III
Hydrology Paper of the Day @abhilashsingh.bsky.social suggested by @mlearthsciences.bsky.social on obtaining subsurface soil moisture from surface soil moisture observations: conditional generative modeling in the context of Fickian diffusion, and a reverse diffusion process from a neural network.
Can weak physics improve machine-learning generalization to new (or any) sites compared to hard-constraint physics-informed machine learning that requires site-specific details?
We address this question in our new paper in GRL.
doi.org/10.1029/2025...
#soilmoisture #machinelearning
We address this question in our new paper in GRL.
doi.org/10.1029/2025...
#soilmoisture #machinelearning
October 19, 2025 at 2:13 AM
Hydrology Paper of the Day @abhilashsingh.bsky.social suggested by @mlearthsciences.bsky.social on obtaining subsurface soil moisture from surface soil moisture observations: conditional generative modeling in the context of Fickian diffusion, and a reverse diffusion process from a neural network.
Reposted by Donald E. Matthieu III
@efsa.europa.eu just released a literature review of >1,700 publications reporting #microplastics occurrence in food contact materials. Unfortunately, methodological shortcomings and inadequate reporting prevents reliable exposure estimation.
#LiteratureReview
www.efsa.europa.eu/en/supportin...
#LiteratureReview
www.efsa.europa.eu/en/supportin...
October 22, 2025 at 4:55 PM
@efsa.europa.eu just released a literature review of >1,700 publications reporting #microplastics occurrence in food contact materials. Unfortunately, methodological shortcomings and inadequate reporting prevents reliable exposure estimation.
#LiteratureReview
www.efsa.europa.eu/en/supportin...
#LiteratureReview
www.efsa.europa.eu/en/supportin...