1033 - Chemical Contaminants and Fungal Fixes in Wastewater and Agriculture
Public Health On Call
The Johns Hopkins Bloomberg School of Public Health
4.6 • 644 Ratings
🗓️ 8 April 2026
⏱️ 15 minutes
🔗️ Recording | iTunes | RSS
🧾️ Download transcript
Summary
About this episode:
Biosolids created by the wastewater treatment process are useful fertilizers in agriculture, but they often contain chemical compounds from the pharmaceutical and personal care products we send down our drains. In this episode: Researcher Carsten Prasse details new findings that suggest that fungi could reduce our risk of exposure to these compounds in our drinking water and food.
Guest:
Carsten Prasse, PhD, MSc, is an associate professor of Environmental Health and Engineering at the Johns Hopkins Bloomberg School of Public Health, where he studies organic contaminants in the urban water cycle and their impact on environmental and human health.
Host:
Stephanie Desmon, MA, is a former journalist, author, and the director of public relations and communications for the Johns Hopkins Center for Communication Programs.
Show links and related content:
-
White-Rot Fungi Show Promise for Reducing Pharmaceutical Residues in Biosolids—Johns Hopkins Bloomberg School of Public Health
-
Magic Mushrooms? White-Rot Fungal Degradation of Psychoactive Pharmaceuticals in Biosolids—ACS Environmental Au
Transcript information:
Looking for episode transcripts? Open our podcast on the Apple Podcasts app (desktop or mobile) or the Spotify mobile app to access an auto-generated transcript of any episode. Closed captioning is also available for every episode on our YouTube channel.
Contact us:
Have a question about something you heard? Looking for a transcript? Want to suggest a topic or guest? Contact us via email or visit our website.
Follow us:
-
Here's our RSS feed
Note: These podcasts are a conversation between the participants, and do not represent the position of Johns Hopkins University.
Transcript
Click on a timestamp to play from that location
| 0:00.0 | Welcome to Public Health On Call, a podcast from the Johns Hopkins Bloomberg School of Public Health, |
| 0:05.9 | where we bring evidence, experience, and perspective to make sense of today's leading health challenges. |
| 0:16.3 | If you have questions or ideas for us, please send an email to public health question at jh.h.u.edu. |
| 0:23.8 | That's public health question at jh.u.org for future podcast episodes. |
| 0:31.1 | Hey, listeners, it's Lindsay Smith-Roggers. Today, pharmaceuticals and other chemicals in our wastewater. |
| 0:38.1 | Karsten Prasay, a Johns Hopkins Environmental Science researcher, |
| 0:41.9 | talks to Stephanie Desmond about his work looking at innovative ways |
| 0:45.2 | to keep as much of these compounds as possible from reaching our drinking water |
| 0:49.3 | and the fertilizer that feeds our crops. |
| 0:51.8 | One idea? |
| 0:52.9 | Using common mushrooms to degrade the drugs before they can reenter |
| 0:56.9 | our food and water supplies. Let's listen. Karsten Pras, I thank so much for joining me. Thank you for |
| 1:02.9 | having me today. So I wanted to know this. What happens to the medications we take and the products |
| 1:08.5 | we use after they go down the drain. Most of us assume |
| 1:11.7 | they just disappear, but they don't, and trace chemicals can make their way through wastewater |
| 1:16.2 | systems and back into the environment. Today, I want to talk to you about an unexpected |
| 1:20.6 | solution that you found in your research. Today, we're talking about how fungi can help |
| 1:25.1 | remove things like pharmaceuticals and personal care products from wastewater. Why does this matter? It matters because if these things aren't removed |
| 1:33.0 | from our wastewater, then we are potentially exposed to them. So, for example, through drinking |
| 1:37.6 | water or potentially also food that is grown using wastewater. Medications like antidepressants and beauty products, they don't fully break down. |
| 1:47.5 | And so some of it ends up in these water systems. |
| 1:50.0 | Can you quickly walk through an overview of how wastewater too it works and where it falls short? |
... |
Please login to see the full transcript.
Disclaimer: The podcast and artwork embedded on this page are from The Johns Hopkins Bloomberg School of Public Health, and are the property of its owner and not affiliated with or endorsed by Tapesearch.
Generated transcripts are the property of The Johns Hopkins Bloomberg School of Public Health and are distributed freely under the Fair Use doctrine. Transcripts generated by Tapesearch are not guaranteed to be accurate.
Copyright © Tapesearch 2026.

