Science Vs Science Vs

How Toxic Is the Air You Breathe?

May 28, 2026

Summary

This episode explores the tragic story of Ella Kissi-Debrah, a nine-year-old girl whose severe asthma was triggered by illegal levels of air pollution in London. With help from Professor Stephen Holgate, her mother Rosamund proved that nitrogen dioxide from traffic contributed to Ella’s death, leading to the first-ever death certificate listing air pollution as a cause. The narrative contrasts this victory for clean air advocacy with recent US deregulation efforts, highlighting the ongoing global struggle against invisible environmental hazards.

Topics discussed

Intro: Deregulation and pollution policy Ella's mysterious illness and seizures Failed diagnoses and cough syncope Ella's death and Rosamund's search for answers Stephen Holgate's investigation into Ella's lungs Linking attacks to illegal air pollution levels History of smog and health impacts of micro-pollutants The coroner's inquest and historic death certificate Policy changes in London and Rosamund's advocacy Clean Air Act, US rollbacks, and credits
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