Eric Roy, Ph.D.
ericroyphd.bsky.social
Eric Roy, Ph.D.
@ericroyphd.bsky.social
(New to BlueSky)
Environmental Science (mostly water).
Head of Science @heyculligan
Founder @Hydroviv (Acquired by @heyculligan)
Views are mine.
No brainer to stop spreading #PFAS contaminated biosolids (from water treatment plants) on farmland, but where do you actually put it?

Maine Was First To Ban Spreading PFAS-Contaminated Sludge on Farmland. Now Sludge Is Filling up Landfills. - Inside Climate News
Well before the ban took effect, the “forever chemicals” linked to cancer, birth defects and other serious health problems had tainted drinking-water wells, vegetable roots, beef and milk in Maine.
insideclimatenews.org
November 26, 2025 at 6:16 PM
"Wait and see" is not a winning strategy when the contaminants don't go away.  They're called "forever chemicals" for a reason

#PFAS #water #drinkingwater

https://www.yahoo.com/news/articles/officials-discover-concerning-substances-us-043000580.html?
Officials discover concerning substances in US drinking water supply: 'Wait-and-see'
They are incredibly difficult to filter out of the water.
www.yahoo.com
November 21, 2025 at 2:21 PM
Heavy equipment is amazing. In a day, they rerouted the river that runs under my driveway
November 21, 2025 at 9:23 AM
I never understood why utilities aren't going after these funds?

As always, great insight by the folks at @NRDC

#pfas #environment #water

PFAS Settlement Money for Water Utilities Poised to Evaporate
Up to $13.6 billion is available from settlements, but key actions to claim funds must be taken by January 1, June 30, and July 30 in 2026.
www.nrdc.org
November 19, 2025 at 2:43 PM
I had a Jordanian labmate who left his family to pursue his PhD in the US. One of the most purpose-driven folks I’ve ever come across!
"Looking back, that season taught me lessons I’ll hold forever. I learned to ask for help without shame and lean on my support system of friends and classmates. Most importantly, I learned to keep sight of why I came here in the first place." #ScienceWorkingLife https://scim.ag/49lcqwR
November 18, 2025 at 11:43 PM
Kudos to WEF for continuing to raise awareness on this, as well as calling out steps in the right direction that some have taken.  RIP Glitter!

#microplastics

Microplastics: Are we facing a new health crisis – and what can be done about it?
Microplastics are now in the land, sea and air, across the food chain and in the human body. Some experts think we're in the midst of a plastic health crisis.
www.weforum.org
November 18, 2025 at 7:40 PM
Arsenic occurs naturally so it doesn't get a ton of press (ie no rage bait against polluters).  Important work by NYU, Columbia, & University of Chicago

#waterquality #cleanwater #water

Lowering Arsenic Levels in Groundwater Decreases Death Rates from Chronic Disease
An NYU Langone study provides strong evidence that lowering arsenic in drinking water can lower death rates from chronic disease. Learn more.
nyulangone.org
November 18, 2025 at 2:04 PM
Arsenic occurs naturally so it doesn't get a ton of press (ie no rage bait against polluters).  Important work by NYU, Columbia, & University of Chicago

#waterquality #cleanwater #water

Lowering Arsenic Levels in Groundwater Decreases Death Rates from Chronic Disease
An NYU Langone study provides strong evidence that lowering arsenic in drinking water can lower death rates from chronic disease. Learn more.
nyulangone.org
November 18, 2025 at 2:04 PM
The PFAS exposure happened for a long time before the filters were provided

New Mexico is installing free water filters to address ‘forever chemical’ contamination
LA CIENEGUILLA —The garden beds are empty in José Villegas’ backyard, and the land where he grew even more corn and calabasas is a flat stretch of dirt. The La
f.mtr.cool
November 16, 2025 at 11:30 PM
Normally, wouldn't share something for small group of people.... but the headline

Lake Tahoe Billionaires Might Be Drinking Poop Water
Incline Village, an area of Lake Tahoe filled with extremely conservative billionaires, is drowning in poop.
www.vice.com
November 14, 2025 at 2:31 PM
Reposted by Eric Roy, Ph.D.
𝗚𝗿𝗼𝘂𝗻𝗱𝘄𝗮𝘁𝗲𝗿 𝗮𝗻𝗱 '𝘁𝗵𝗲 𝘁𝗿𝗮𝗴𝗲𝗱𝘆 𝗼𝗳 𝘁𝗵𝗲 𝗰𝗼𝗺𝗺𝗼𝗻𝘀' - the idea that when many people have free access to a shared, finite resource, they tend to overuse it.

By Marc Bierkens, professor at @utrechtuniversity.bsky.social, mapping global groundwater overuse.

erc.europa.eu/projects-sta...
Will we run out of groundwater?
Groundwater supplies half the world’s drinking water and irrigates a third of its crops, yet it is disappearing fast. How much can we still use before it is gone? ERC grantee Marc Bierkens is among th...
erc.europa.eu
November 14, 2025 at 8:17 AM
It doesn't matter how remote/untouched your water supply is.... lead comes from the the pipes themselves

https://www.yahoo.com/news/articles/lead-contamination-found-hawaii-school-071349441.html

#lead #water #hawaii
Lead contamination found in Hawaii school water
Education officials are investigating lead contamination at Waiakea Intermediate School on the Big Island.
www.yahoo.com
November 13, 2025 at 4:02 PM
Municipalities oppose tightening standards for drinking water because it costs money to build the capability ... and no funds accompany the regs

I wish there was more pragmatic discussion about this.

Officials spark backlash with controversial plan for drinking water supply: 'Premature and irresponsible'
Detractors have noted the potential costs.
www.yahoo.com
November 12, 2025 at 6:32 PM
$4.9m for 60k people is average of ~$80 per impacted.  Some will get $2500, some ~$50

Sadly, a lot of folks are still buying bottled, when a proper filter would be MUCH cheaper

NJ residents to receive $4.9M settlement for PFAS contamination in drinking water | NJ Spotlight News
The case could become a template for other communities whose water has been contaminated with the chemicals
www.njspotlightnews.org
November 9, 2025 at 1:48 PM
Farmers whose fields had biosolids applied to them need relief. They were told that biosolids from water treatment plants were a green fertilizer before we understood PFAS.

https://www.greatlakesnow.org/2025/11/sludge-is-used-as-fertilizer-across-wisconsin-how-much-is-tainted-by-pfas/

#PFAS #water
Sludge is used as fertilizer across Wisconsin. How much is tainted by PFAS? | Great Lakes Now
Sludge and septage are spread across around half a million acres statewide, but most of it has never been tested for PFAS.
www.greatlakesnow.org
November 8, 2025 at 4:43 PM
We should give grace to orgs that used PFAS firefighting foams. Fire depts were told that they were safe. 

For years, FM played with fire in Glocester. Now, drinking wells have record levels of PFAS.
For years, an unlined landfill on FM's Glocester property may have been contaminating nearby wells with PFAS.
www.providencejournal.com
November 7, 2025 at 3:28 PM
We need to accelerate our understanding of microplastics on health because there’s a massive reservoir of plastics in landfills that have been breaking down for up to 100 years.
How soon will #plastics buried in landfills re-enter Earth's carbon cycle? A groundbreaking study predicts that half of landfilled plastics will fragment into micro- and nanoplastics within 83-189 years. Dive into the research and its implications!
www.sciencedirect.com/science/arti...
How soon will landfilled plastics integrate into the geological carbon cycle?
Approximately half of plastic waste ends up in landfills, where fragmentation leads to the leakage of microplastics, nanoplastics, and petrogenic carb…
www.sciencedirect.com
November 7, 2025 at 12:07 PM
Reposted by Eric Roy, Ph.D.
Just published in the Journal of Exposure Science and Environmental Epidemiology (@springernature.com)!

Our multi-agency team examined links between #PFAS in public drinking water and levels in people’s blood across #SouthernCalifornia.

#openAccess link ->
doi.org/10.1038/s413...
October 31, 2025 at 8:33 PM
Not a ton of studies track things from prenatal exposure to adulthood health outcomes.  This is one that does, and unfortunately it's not good news.

https://www.medscape.com/viewarticle/prenatal-lead-exposure-tied-significant-risk-major-2025a1000u3q

#drinkingwater #water #lead
Prenatal Lead Exposure Tied to MDD Risk in Adulthood
Prenatal lead exposure is linked to a significantly increased risk for major depression in adulthood.
www.medscape.com
November 6, 2025 at 2:11 PM
Press release (so the claims should be taken with a pile of salt) but I'm happy to see private sector making progress on PFAS destruction tech before it is released into environment

BioLargo Cuts AEC PFAS Treatment Energy Use by >90%, Unlocking Commercial-Scale Water Solutions with Unmatched Total Life Cycle Cost Savings
WESTMINSTER, CA / ACCESS Newswire / November 3, 2025 / BioLargo, Inc. (OTCQX:BLGO), a cleantech innovator that develops and commercializes sustainable technologies, today announced a breakthrough upgrade to its patented Aqueous Electrostatic Concentrator ...
finance.yahoo.com
November 6, 2025 at 12:05 PM
$7.6m settlement to avoid $190m cleanup costs feels like a business decision 

CT Water receives $7.6M in PFAS contamination settlements; faces $190M in treatment costs
Connecticut Water Co. has received $7.6 million from manufacturers of “forever chemicals” as part of a massive nationwide lawsuit, its parent company, California-based H2O America, disclosed in its third-quarter earnings […]
hartfordbusiness.com
November 5, 2025 at 7:07 PM