On:
In: 2023 Lakie Awards, Christy Remucal, Great Lakes Sandwich of the Year loser, Illinois-Indiana Sea Grant, Marie Zhuikov, Sarah Balgooyen, Stuart Carlton, Teach me about the Great Lakes podcast, Tim Campbell, Titus Bakery, Titus Seilheimer, Wisconsin water news

Podcast host Stuart Carlton calls the Lakie Awards “the least prestigious Great Lakes podcast awards” around. Carlton hosts “Teach me About the Great Lakes,” a twice-monthly podcast produced by Illinois-Indiana Sea Grant where listeners can learn about a variety of Great Lakes topics and issues.

Mixed with tongue-in-cheek award categories like Great Lakes Donut of the Year are more typical ones. Wisconsin Sea Grant fared unusually well in the 2023 competition, earning honors for Great Lakes Research Project, Great Lakes Sandwich, Science Podcast and Great Lakes Titus of the Year.

A Lakie entry so bad that it garnered a first-ever loser award. Image credit: Tim Campbell, Wisconsin Sea Grant

Our staff members earned both the winner and runner-up categories for Great Lakes Research of the Year. Interim Wisconsin Sea Grant Director Christy Remucal and her student Sarah Balgooyen won for their journal article about discovering the source of a PFAS plume into Lake Michigan. Aquatic Invasive Species Outreach Specialist Tim Campbell and his team earned runner-up for their article about Buddhist life release rituals and the risk for unintentionally spreading aquatic invasive species.

Our podcast, Wisconsin Water News (produced by me!) earned runner-up for Science Podcast for the Year.

Fisheries Outreach Specialist Titus Seilheimer earned runner-up for Great Lakes Titus of the Year. Although this category is named after Titus, it wouldn’t look good for him to win it, so this year, those honors went to the Titus Bakery chain in Indiana.

Campbell had the distinction of being named a first-ever loser in the Great Lakes Sandwich of the Year competition. He submitted a photo of a mac-and-cheese hot dog covered with fruit loops cereal, which was too gross for the Lakies judges to even consider.

Despite their lack of prestige, our staff are proud of their showing in the Lakies and appreciate this outreach effort by Illinois-Indiana Sea Grant. To see a list of the other winners, please access the episode here.

The post Wisconsin Sea Grant garners good showing in the Lakie Awards first appeared on Wisconsin Sea Grant.

Original Article

Blog | Wisconsin Sea Grant

Blog | Wisconsin Sea Grant

https://www.seagrant.wisc.edu/blog/wisconsin-sea-grant-garners-good-showing-in-the-lakie-awards/

Marie Zhuikov

On:
In: Christy Remucal, firefighting foam, forever chemicals, Green Bay, PFAS, Sarah Balgooyen, Tyco

A new study has found that a plume of per- and polyfluoroalkyl substances (PFAS) from an industrial source has made its way into Green Bay, Lake Michigan, through the movement of groundwater.

PFAS are often referred to as “forever chemicals” because they do not readily break down in the environment. They have been used to make a wide range of products resistant to water, grease, oil and stains and are also found in firefighting foams, which are a major source of environmental PFAS contamination. The chemical compounds have been shown to have adverse effects on human health.

Christy Remucal with the University of Wisconsin-Madison Department of Civil and Environmental Engineering, and postdoctoral co-investigator Sarah Balgooyen published their work in the Dec. 27, 2022, issue of the journal Environmental Science & Technology, https://pubs.acs.org/doi/10.1021/acs.est.2c06600 It was funded by a grant from the Wisconsin Sea Grant College Program.

“We used a forensics approach to investigate how the PFAS fingerprint from an industrial source changes after undergoing environmental and engineered processes,” Remucal said.

Woman wearing lab goggles, gloves and a lab coat in a lab.

Researcher Christy Remucal in her lab on the University of Wisconsin-Madison campus is analyzing water samples taken from a known contamination site.

Researchers tracked the movement of PFAS through groundwater and surface water flow, as well as the chemicals’ presence in biosolids on land. Analysis of samples showed that, unfortunately, a large PFAS plume has moved into Green Bay, Lake Michigan.

Green Bay is one of the largest bays on the Great Lakes, an interconnected freshwater system providing drinking water for 30 million U.S. and Canadian residents. That makes it even more important for researchers to understand what contaminants are present and where they may have come from.

The source of this Great Lakes contamination has been traced to Tyco Fire Products. The company’s fire-training facilities in Marinette and Peshtigo have previously been identified as a source of PFAS contamination in groundwater and private drinking water wells in the area.

The forensic technique in this study used PFAS fingerprinting, a process that uses ratios of individual PFAS compounds to identify PFAS contaminants and their sources. In this case, the PFAS fingerprint in Green Bay is nearly identical to PFAS associated with Tyco and includes PFAS known to be active ingredients in firefighting foams. This fingerprinting method could be used to hold polluting companies responsible for the contaminated water, the researchers said.

The study also found that PFAS associated with the industrial facility are present in streams near some agricultural fields. The researchers believe this PFAS contamination may have come from the treated biosolids many farmers use to fertilize their fields.

Biosolids are the product of wastewater treatment and are rich in nutrients like nitrogen and phosphorus. PFAS in wastewater undergo extensive processing and some PFAS tend to concentrate in biosolids during treatment.

Remucal and Balgooyen determined that PFAS from biosolids can still mobilize after being spread on land. So, when farmers spread biosolids on their fields, PFAS can eventually make their way to adjacent streams.

Blonde woman wearing safety goggles, gloves and a lab coat in a lab.

Sarah Balgooyen is a postdoctoral investigator of PFAS, which is a group of man-made chemicals known for stain- and water-resistance, but also causes cancer in humans.

“Treated biosolids are commonly spread on fields all across Wisconsin,” Balgooyen said. “This information may impact how municipalities across Wisconsin and other states approach the use of biosolids as an agricultural fertilizer.”

The post New study: Northeastern Wisconsin PFAS plume moves into Green Bay via groundwater first appeared on Wisconsin Sea Grant.

Original Article

News Releases | Wisconsin Sea Grant

News Releases | Wisconsin Sea Grant

https://www.seagrant.wisc.edu/news/new-study-northeastern-wisconsin-pfas-plume-moves-into-green-bay-via-groundwater/?utm_source=rss&utm_medium=rss&utm_campaign=new-study-northeastern-wisconsin-pfas-plume-moves-into-green-bay-via-groundwater

Moira Harrington

On:
In: acids, Christy Remucal, perfluoroalkyl, PFAA, PFAS, Sarah Balgooyen

The world’s largest source of fresh water, the Great Lakes, provides drinking water to more than 40 million people in the U.S. and Canada. In the first study of its kind, researchers at the University of Wisconsin-Madison College of Engineering have demonstrated that tributary rivers feeding Lake Michigan play an important role in bringing the human-made group of chemicals known as per- and polyfluoroalkyl substances (PFAS) to the Great Lakes system.

Researcher Christy Remucal in her lab on the University of Wisconsin-Madison campus is analyzing water samples taken from known contamination sites, the Menominee and Peshtigo rivers, which feed into Lake Michigan. Photo: Bonnie Willison

Christy Remucal with the Department of Civil and Environmental Engineering, and postdoctoral co-investigator Sarah Balgooyen quantified 10 PFAS chemicals known as perfluoroalkyl acids (PFAAs), in the water and sediment of 41 tributaries to Green Bay of Lake Michigan.

The study is published in the Feb. 10, 2022, edition of the ACS ES&T Water Journal (https://pubs.acs.org/doi/full/10.1021/acsestwater.1c00348). It was funded by a grant from the Wisconsin Sea Grant College Program.

“Tributary PFAS loading to the Great Lakes is poorly understood,” Remucal said. “The role of sediments as a PFAS source or sink is also largely unknown. Our study is bringing some much-needed answers to not only the people who live around the bay of Green Bay, but also to all of the Great Lakes communities because it’s an interconnected water system. These findings could also be extrapolated to understand the conditions surrounding thousands of other tributaries that flow into the five lakes.”

PFAAs are found in common household items like cookware, cleaning agents and fabric treated with repellants, as well as in firefighting foams. In the study area, the Fox, Menominee and Peshtigo rivers contribute two-thirds of the total tributary PFAA loading to Green Bay despite their relatively low concentrations and despite the current regulatory focus on sites with high PFAA concentrations. The sources of the chemicals in the study tributaries are likely linked to a firefighting foam manufacturer, other industrial activity and airports, which use firefighting foam on runways.

In addition to the tributary discharge, the work showed that tributary sediments can contribute to PFAA via a releasing process known as desorption. Contaminated riverbed sediments may act as a PFAA source even if water concentrations are reduced by pollution mitigation.

Sarah Balgooyen, a postdoctoral investigator of PFAS, said there are likely more than 5,000 compounds known as per- and polyfluoroalkyl substances. In research published today in a leading journal Balgooyen quantifies 10 of the chemicals analyzed in the water and sediment of Lake Michigan tributary water bodies. Photo: Bonnie Willison

“Understandably, there is a heightened interest in the levels of PFAS in drinking water. PFAS have been linked to a number of ill human health effects, including cancer,” Balgooyen said. “I’m grateful for the opportunity to share my research. It certainly leads to a clearer understanding and, hopefully, can provide some guidance on contamination cleanup.”

The research will also inform the Wisconsin PFAS Action Council, of which Remucal is a member as the University of Wisconsin System representative. She is joined by representatives from 17 state agencies. The group has identified eight PFAS priority themes, including one on sampling and one on research and knowledge.

A video about this project can be found here.

 

The post Great Lakes tributary rivers play important role in bringing PFAS to the drinking water source of millions first appeared on Wisconsin Sea Grant.

Original Article

News Releases | Wisconsin Sea Grant

News Releases | Wisconsin Sea Grant

https://www.seagrant.wisc.edu/news/great-lakes-tributary-rivers-play-important-role-in-bringing-pfas-to-the-drinking-water-source-of-millions/?utm_source=rss&utm_medium=rss&utm_campaign=great-lakes-tributary-rivers-play-important-role-in-bringing-pfas-to-the-drinking-water-source-of-millions

Moira Harrington

On:
In: emerging contaminants, Green Bay, Keillor Fellow, Marinette, PFAS, Sarah Balgooyen, Tyco Fire Products, Water quality

In the April installment of Wisconsin Sea Grant’s “Lake Talks,” Sarah Balgooyen will discuss “Forever Chemicals: PFAS in the Green Bay Watershed.”

The Lake Talks are informal, interactive science presentations on Great Lakes issues, especially those involving Lake Michigan. In light of the ongoing pandemic, spring 2021 Lake Talks are being offered via Zoom.

Balgooyen will speak Thursday, April 15, from 7-8 p.m. (Register now for this Zoom webinar.)

Dr. Sarah Balgooyen at work in a laboratory on the UW-Madison campus. (Photo: Bonnie Willison)

PFAS are a category of chemicals frequently found in firefighting foams, Teflon and many other common products. They are a hot topic in water research because they are estimated to contaminate the drinking water of 16.5 million people in the United States alone, and much more needs to be understood about these chemicals.

One site of concern in Wisconsin is the Tyco Fire Products facility in Marinette. These concerns involve not only drinking water from private wells in the area, but also the possibility for contaminants to get into the bay of Green Bay and, ultimately, out into Lake Michigan.

Balgooyen, who completed her Ph.D. at UW-Madison in 2019, has been studying this area as the J. Philip Keillor Water Science Fellow at Wisconsin Sea Grant.

In this informal talk geared toward a general audience, Balgooyen will talk about her research process and what she’s found so far. There will also be time during the hour for audience questions. This Zoom webinar is free and open to all.

For connection information for future talks, visit the Lake Talks page of the Wisconsin Sea Grant website, or follow Wisconsin Sea Grant on Facebook or Twitter. You can register for Sarah Balgooyen’s talk now.

For questions about this series, contact Wisconsin Sea Grant science communicator Jennifer Smith.

The post Informal science talk to address PFAS in the Green Bay watershed first appeared on Wisconsin Sea Grant.

Original Article

News Releases – Wisconsin Sea Grant

News Releases – Wisconsin Sea Grant

https://www.seagrant.wisc.edu/news/informal-science-talk-to-address-pfas-in-the-green-bay-watershed/

Jennifer Smith