Category: Emerging contaminants

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2019 Emerging Contaminants in the Environment Conference announces keynote speakers

Keynote speakers for the 2019 Emerging Contaminants in the Environment conference have been announced. The conference will be held on May 21-22, 2019, at the Hilton Garden Inn in Champaign, IL. This year the conference will expand beyond the aquatic environment to also include air and soil studies along with effects on human and animal health. Conference organizers are accepting poster presentations through February 4.

The keynote speakers are:

Getting Ahead of Emerging Contaminants with the Class Concept

Thomas Burton – PFAS Research and Policy Lead, Green Science Policy Institute

Thomas Bruton received his Ph.D. in environmental engineering at UC Berkeley, where his research focused on using in-situ chemical oxidation for remediation of chemical contaminants, including PFAS, in soil and groundwater. In 2017, Tom joined the Green Science Policy Institute, which works collaboratively with partners in academia, government, business, and the nonprofit sector to reduce the use of harmful chemicals in products.  Tom currently leads the Institute’s research and policy work on PFAS.  He is the author of several peer-reviewed papers on PFAS, and is frequently interviewed by the news media.

Microplastics: A Global, Multi-Media Concern

Robert C. Hale – Professor of Marine Science, Virginia Institute of Marine Science

Rob Hale’s research focuses on the sources, multi-media fate, bioavailability and effects of persistent, bioaccumulative & toxic (PBT) pollutants.  Recent interests include flame retardants and microplastics. Matrices of concern have ranged from local fish tissues and sediments, Antarctic wastewater sludge, plastics, to indoor & World Trade Center dust. Over the last 30 years he has published >100 journals articles, which have been cited >7000 times.

Rob was born in Detroit, MI.  He received bachelor degrees in both chemistry and biology (Wayne State University), as well as a Ph.D. in Marine Science (William & Mary). He initially worked as a Research Environmental Chemist for Mobil Corp. in Princeton, NJ, before returning to VIMS, where he is now a Professor in the Dept. of Aquatic Health Sciences.

Emerging Contaminants: State of the Art and New Discoveries

Susan D. Richardson – Arthur Sease Williams Professor of Chemistry, University of South Carolina

Biography:  Susan D. Richardson is the Arthur Sease Williams Professor of Chemistry in the Department of Chemistry and Biochemistry at the University of South Carolina.  Prior to coming to USC in January 2014, she was a Research Chemist for several years at the U.S. EPA’s National Exposure Research Laboratory in Athens, GA.  Susan is the recipient of the 2008 American Chemical Society Award for Creative Advancements in Environmental Science & Technology, has received an honorary doctorate from Cape Breton University in Canada (2006), and was recently recognized as an ACS Fellow (2016).  Susan was also recently elected as the Vice President/President Elect for the American Society for Mass Spectrometry.

 

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Agricultural Chemicals in the Environment: A Study on Nitrapyrin

For a number of farms in the Midwest, nitrapyrin is used to help hold nutrients in agricultural fields until the plants have a chance to use them. Nitrapyrin increases the availability of nitrogen fertilizer, which boosts crop production. Therefore, nitrapyrin can improve nitrogen use efficiency, reduce nutrient losses, and thereby mitigate eutrophication (excess nutrients spurring exponential growth of algae in lakes).

Nitrapyrin and other nitrogen inhibitors work by limiting the conversion of ammonium to nitrite (first step of nitrification). Nitrapyrin also restricts the formation of nitrate from nitrite (second step of nitrification).  Nitrate is one of the major contributors to eutrophication.

While the use of nitrapyrin has benefits, concerns have been raised about whether its runoff from fields into nearby rivers and streams could have an impact on bacteria and the nitrification process in those water bodies. Even though nitrapyrin has been used as nitrification inhibitor and soil bactericide since the early 1970s, there is limited information on its fate and transport from fields into aquatic ecosystems.

As an initial step to quantify the amounts of nitrapyrin present in fields and streams, ISTC researchers Wei Zheng and Nancy Holm collaborated with scientists from the U.S. Geological Survey (USGS) to undertake a one-year study of its occurrence in seven streams and nearby farm fields in Iowa and Illinois. The team examined the concentrations of nitrapyrin, its metabolities, and three widely used herbicides – acetochlor, atrazine, and metolachlor – in soil and water samples.

Results from their recently published article showed that nitrapyrin was found in many of the samples. It was sorbed to soil particles, transported from fields via overland flow, and leached into subsurface drains. In addition, all three herbicides were found in the stream samples with atrazine being the most concentrated of the three, especially at peak application times.

This research project extends the previously published pilot study on nitrapyrin by the USGS and is the first to show the transport of nitrapyrin from fields to streams over an entire year. In addition, this study is the first to describe nitrapyrin transport via subsurface drains, although those concentrations were much lower than surface concentrations. Studies such as this can help provide decision makers with a better understanding of the fate of chemicals applied to agroecosystems.

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Illinois Researchers Take Novel Approach to Removing PPCPs from Water

When you dump expired cold syrup or rinse out an almost empty bottle of lotion into the sink, do you ever consider what chemicals are being introduced into the water supply?

The increase of pharmaceuticals and personal care products (PPCPs) entering public water systems was a problem that researchers at the University of Illinois at Urbana-Champaign challenged themselves to solve thanks to seed funding from the Institute for Sustainability, Energy, and Environment (iSEE).

“PPCPs pose dangerous ecological and health effects on chronic exposure even if they are present in low concentrations,” said Dipanjan Pan, Associate Professor and the Director of Professional MS Program in Bioengineering. “We believe we have found a low-cost way to remove these harmful chemicals — and by making it biodegradable, we won’t be introducing any complications to wildlife.”

A team led by Pan collaborated with Wei Zheng, Senior Research Scientist at the Illinois Sustainable Technology Center (ISTC, a Division of the Prairie Research Institute), and B.K. Sharma, Senior Research Engineer at ISTC, to develop a unique technology to alter the harmful chemicals introduced to water. The results of their study were recently published in Journal of Materials Chemistry A.

Team members from Pan Laboratory created a “smart filter,” called a Pharmaceutical Nano-CarboScavenger (PNC), that efficiently and safely removes carbamazepine (found in medications treating a wide-range of physical and mental health issues), gemfibrozil (found in cholesterol medication), and triclocarban (an antibacterial agent found in soaps and lotions) from water. 

This filter is vastly different from your average water filter. It places activated charcoal and sand on top of the PNCs, which are carbon-filled cores made from agave. Water is allowed in, the activated charcoal removes heavy metals, the sand helps remove impurities and contaminants, and the PNCs scavenge through the water to remove the PPCP pollutants.

“A nanoengineered system that is based on an environmentally degradable system is a major and unmet need,” Zheng said. “The materials are derived from inexpensive natural sources and completely biodegradable, making this approach highly adaptable and environmentally friendly for mass processes.”

Other collaborators on the project: Indu Tripathi, former Postdoctoral Visiting Scholar in Bioengineering; Laurel K. Dodgen, former Illinois Postdoc and current Physical Scientist for the U.S. Department of the Interior; Fatemeh Ostadhossein, M.S. and Ph.D. Candidate in Bioengineering; Santosh Misra, former iSEE Postdoctoral Researcher in Bioengineering; and Enrique Daza, a recent Bioengineering Ph.D. graduate and an M.B.A. Candidate from Pan’s lab.

Backed by iSEE funding, Pan’s Nano-CarboScavenger team also has explored remediating crude oil spills in water and had successes in the lab at clumping oil globules that could be scooped by a fine net — again, with the particles completely biodegradable and having no effect on wildlife if consumed. Pan and his team have also explored possible cancer treatments using nanoparticles.

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Call for Abstracts for the 2019 Emerging Contaminants in the Environment Conference now open

You can now submit abstracts for the 2019 Emerging Contaminants in the Environment Conference.

Abstracts are requested for oral and poster presentations on all aspects of emerging contaminants in the environment, including research, public health, policy, management, outreach, and education. The conference will include sessions on:

  • Per- and polyfluoroalkyl substances (PFASs) (including PFOS, PFOA, & related compounds)
  • Pharmaceuticals and personal care products (PPCPs) (including naturally occurring hormones)
  • Plastics and microplastics (including microfibers)
  • Other emerging contaminants

Visit the conference web site to submit your abstract or use the links below:

Registration will open in February 2019. Registration includes conference admission and detailed conference program. In addition, it includes breakfast and lunch on the day(s) that you register, hors d’oeurves at the poster session (May 21), and a networking mixer at 5-7 pm on May 20 at the Pavilion Lounge in the Hilton Garden Inn.

 

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New Legislative Request Regarding Contaminants of Emerging Concern in Illinois Wastewater Effluent

The Illinois governor recently signed House Bill IL-HB5741 that amends the University of Illinois Scientific Surveys Act. The new section 21 asks the Prairie Research Institute (PRI), which was established under the Scientific Surveys Act in 2008, to conduct a scientific literature review of chemicals identified in wastewater treatment plant effluents that are recognized as contaminants of emerging concern. It also requests that PRI compile a listing of the specific actions recommended by various state and federal agencies to address the environmental or public health concerns associated with the chemicals. PRI will provide its impartial report to the General Assembly by June 30, 2020.

Because of its long history of pollution prevention expertise, the Illinois Sustainable Technology Center (ISTC), a division of the Prairie Research Institute, will take the lead on this new effort. ISTC researchers have studied a variety of inorganic and organic environmental contaminants as well as developed methods for waste and pollution prevention. Recently much of their water quality research and public engagement activities have focused on chemicals of emerging concern in wastewater, surface water, and groundwater. ISTC staff members Nancy Holm, Laura Barnes, and Elizabeth Meschewski will be compiling the report.

Although the law requests a literature review of contaminants of emerging concern associated with wastewater treatment plant effluent, these contaminants also enter the environment from other sources. These include non-point sources, such as agricultural fields, and other point sources, such as large animal feeding operations, septic systems, and industrial operations.

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From PFASs to Plastics, Earth’s Waters Need Our Help

TheISTC Director Kevin OBrien chats with conference attendees Yu Feng-Lin (ISGS) and Dr. Xuefei Zhou (Tongji University, China) Illinois Sustainable Technology Center, Illinois-Indiana Sea Grant, and the Department of Civil and Environmental Engineering at the University of Illinois co-hosted the 2018 Emerging Contaminants in the Aquatic Environment Conference (ECACE18) which  was held on June 5-6 in Champaign, IL. The third annual conference highlighted research, education, and policies related to recently detected emerging contaminants and chemicals that are re-emerging as concerns.

This year’s conference focused on a variety of specific issues ranging from PFASs and microplastics to pharmaceuticals and personal care products (PPCPs), as well as many other types of emerging contaminants found in water and the environment.

PFASs, or per- and polyfluoroalkyl substances, are a group of man-made chemicals that are typically found in fire-fighting foams, water- and stain-resistant textiles, and non-stick cookware. They were described by one of the keynote speakers, Dr. Rainer Lohmann who is professor of oceanography at University of Rhode Island and director of a new Superfund Research Center on PFASs, as being “an even bigger environmental problem than PCBs”. PCBs or polychlorinated biphenyl compounds have been a major contaminant in soil, water, and air since the 1970s and are still being cleaned up from old industrial sites and other areas.  PFASs are as persistent as PCBs, bioaccumulate, and are even more soluble in water than PCBs. Dr. Lohmann went on to discuss how PFASs have been found hundreds of feet below the surface of the oceans and have moved through air and water to remote areas such as the Arctic.

The conference not only featured national speakers such as Dr. Lohmann and presenters from as far away as Florida and California, but also international speakers. They included:

  • keynote speaker Dr. Stefan Krause from the University of Birmingham in the UK who discussed multi-contaminant interactions between aquifers and rivers;
  • keynote speaker Dr. Xuefei Zhou from Tongji University in China, who gave an overview of the problem of pharmaceutical pollution in China and potential advanced technology treatment options; and
  • Dr. Matt Taylor from the Port Stephens Fisheries Institute in New South Wales, Australia, whose research examines PFAS contamination in estuarine fisheries.

Prairie Research Institute scientists from ISTC, the Illinois State Water Survey, and the Illinois State Geological Survey also presented their research results on microplastics and PPCPs detected in karst groundwater in Illinois. This widespread participation of researchers, educators, and policy makers from across the globe illustrates the ubiquitous nature of emerging contaminants in water throughout the world and emphasizes that it will take a collective effort by all of us to solve these pollution issues.

The videos of the 3 keynote presentations will be available on the ISTC website within the next two weeks.