In this episode, Shelly dives into the chemistry of PFAS. They are manufactured with beautiful fluorspar and not so beautiful fossil fuels, but what about their unique chemical structure make these compounds so resistant to biodegradation? What products are PFAS in and where in the world (it's everywhere) have they ended up!?

Sources:

• Commonwealth settles $132.7 million class action over PFAS contamination across Australia: https://www.abc.net.au/news/2023-05-15/pfas-class-action-commonsettlement-reached-with-30-000-claimants/102346274
• Samal, K., et al. (2022). Pharmaceutical wastewater as Emerging Contaminants (EC): Treatment technologies, impact on environment and human health. Energy Nexus. https://doi.org/10.1016/j.nexus.2022.100076.
• Glüge, J.S et al. (2020). An overview of the uses of per- and polyfluoroalkyl substances (PFAS) [10.1039/D0EM00291G]. Environmental Science: Processes & Impacts, 22(12), 2345-2373. https://doi.org/10.1039/D0EM00291G
• Cousins, I. T., Goldenman, G., Herzke, D., Lohmann, R., Miller, M., Ng, C. A., Patton, S., Scheringer, M., Trier, X., Vierke, L., Wang, Z., & DeWitt, J. C. (2019). The concept of essential use for determining when uses of PFASs can be phased out. Environmental Science: Processes & Impacts. https://doi.org/10.1039/C9EM00163H
• Wackett, L. P., & McMahon, K. (2021). Why Is the Biodegradation of Polyfluorinated Compounds So Rare? mSphere. https://doi.org/doi:10.1128/mSphere.00721-21
• https://www.theguardian.com/us-news/2025/apr/03/lawsuit-claims-gore-tex-poisoned-drinking-water-near-maryland-facilities
• Luo, Y., et al. (2022). Raman imaging for the identification of Teflon microplastics and nanoplastics released from non-stick cookware. Science of The Total Environment. https://doi.org/https://doi.org/10.1016/j.scitotenv.2022.158293

This episode was recorded live at Radio Adelaide and first aired on the 1st of February 2024

What's the harm in vapes? What are the alternatives for those looking to quit? And how does Big Tobacco influence policy in Australia? I sat down with Flinders University public health researcher Dr Joshua Trigg ahead of the big Australian vape crackdown for the facts.

• Dr Joshua Trigg: https://au.linkedin.com/in/joshuatrigg
• Australian Vaping Legal Reforms: https://www.tga.gov.au/products/unapproved-therapeutic-goods/vaping-hub/reforms-regulation-vapes
• Whats in a vape: https://www.uow.edu.au/the-stand/2022/whats-in-a-vape-.php

• Types of vapes: https://www.cdc.gov/tobacco/basic_information/e-cigarettes/pdfs/ecigarette-or-vaping-products-visual-dictionary-508.pdf
• Environmental impacts: https://www.australiangeographic.com.au/news/2023/02/e-cigarettes-pose-a-triple-threat-to-the-environment-says-clean-up-australia-waste-report/
• Health harms: https://onlinelibrary.wiley.com/doi/10.5694/mja2.51890
• Smoking cessation: https://www.cochrane.org/news/e-cigarettes-varenicline-and-cytisine-are-most-effective-stop-smoking-aids-analysis-over-150000
• Tips on talking to kids about vapes:
  • https://raisingchildren.net.au/guides/a-z-health-reference/vaping
  • https://theconversation.com/my-teens-vaping-what-should-i-say-3-expert-tips-on-how-to-approach-the-talk-196205

This episode was pre-recorded at Radio Adelaide and first aired on the 25th of January 2024

Can a little bit of stress be good for us? How can you die from drinking water? Can our parents' habits before we were born shape our genes—and even impact our health? Who was Paracelsus and was that really his real name???

Tune in to find out!

Sources

• https://www.chemicalsafetyfacts.org/health-and-safety/the-dose-makes-the-poison/
• Farrell, D J, & Bower, L., 2003, Fatal water intoxication. Journal of clinical pathology, https://jcp.bmj.com/content/56/10/803.2
• Calabrese, E. J. et al., 2007, Biological stress response terminology: Integrating the concepts of adaptive response and preconditioning stress within a hormetic dose–response framework, Toxicology and Applied Pharmacology, https://www.sciencedirect.com/science/article/abs/pii/S0041008X07001032?via%3Dihub
• Mattson, M. P., 2008, Hormesis defined., Ageing Research Reviews, https://www.sciencedirect.com/science/article/abs/pii/S1568163707000712?via%3Dihub
• Costantini, D., 2019, Hormesis Promotes Evolutionary Change., Dose-response: a publication of International Hormesis Society, https://pmc.ncbi.nlm.nih.gov/articles/PMC6484245/
• Dias, B., and Ressler, K., 2014, Parental olfactory experience influences behavior and neural structure in subsequent generations., Nat Neurosci, https://www.nature.com/articles/nn.3594
• Coussons-Read, M.E., 2013, ‘Effects of prenatal stress on pregnancy and human development: mechanisms and pathways.’ Obstetric medicine, https://pmc.ncbi.nlm.nih.gov/articles/PMC5052760/
• Song, D.K., and Yong-Woon K., 2023, Beneficial effects of intermittent fasting: a narrative review., J. Yeungnam Med. Sci., https://www.e-jyms.org/journal/view.php?doi=10.12701/jyms.2022.00010

Picture: https://thethinkersgarden.com/odd-truths-paracelsus-rebel/

Recorded live at Radio Adelaide 18th Jan 2024