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Have you ever wondered what's really happening in the air around us? In this captivating conversation with Professor John Wenger of University College Cork, we dive into the hidden chemistry that shapes our atmosphere and affects our health in ways most of us never consider.
At the heart of our discussion is the fascinating world of hydroxyl radicals – nature's invisible cleaning crew that exists at just one part per trillion in our air yet drives fundamental atmospheric reactions. These tiny, highly reactive molecules transform pollutants, create ozone, and even influence cloud formation that affects our climate. Professor Wenger shares insights from the groundbreaking EU-funded Radical Project, which developed innovative sensors to detect these previously unmeasurable atmospheric components.
The conversation shifts to real-world air pollution challenges across Ireland, where Professor Wenger's research identified how solid fuel burning creates dangerous particulate pollution spikes during winter evenings. We explore how valleys like Enniscorthy can experience pollution levels rivaling those in heavily polluted global cities, though these spikes typically last just a few hours each evening. The good news? Low-cost sensor networks are revolutionizing our ability to identify these pollution patterns and empower communities with information.
Perhaps most compelling is our discussion about the pandemic's lessons regarding indoor air quality and the ethical questions it raises. Professor Wenger reflects on how vulnerable populations continue to face accessibility challenges in public spaces due to air quality concerns, drawing parallels to other accessibility rights issues. The episode highlights how understanding air chemistry isn't just academic – it directly impacts public health policy, building design, and even questions of social justice.
Whether you're interested in environmental science, public health, or simply curious about what's in the air you breathe, this conversation offers accessible insights into complex chemistry that affects us all. Subscribe to Air Quality Matters for more discussions that bridge scientific understanding with practical solutions for healthier environments.

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Radical Project

John Wenger UCC

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