How Our Surroundings Shape Health: A Conversation Between Environmental Scientists

Harvard T.H. Chan School of Public Health
Harvard T.H. Chan School of Public HealthApr 16, 2026

Why It Matters

Understanding how indoor environments drive health risks enables targeted policies that protect millions, while Spangler’s collaborative model shows how academia can catalyze systemic sustainability reforms.

Key Takeaways

  • Jack Spangler’s path shifted from physics to atmospheric health.
  • Six‑city studies revealed indoor pollution rivaled outdoor exposure.
  • Research spurred 1986 airline smoking ban and cleaner aircraft cabins.
  • Hockey‑rink CO measurements led to electric Zamboni adoption.
  • Harvard’s green campus program grew from interdisciplinary collaborations.

Summary

The Harvard Chan Studio interview spotlights Jack Spangler, a pioneering environmental health scientist whose career has linked atmospheric science, indoor air quality, and sustainability to public‑health outcomes.

Spangler recounts the seminal six‑city studies that first quantified how indoor sources—smoking, gas cooking, and poor ventilation—could match or exceed outdoor pollutants. Those findings drove the 1986 ban on smoking in airline cabins and sparked a wave of indoor‑air standards.

Memorable fieldwork includes measuring carbon monoxide in Boston hockey rinks, prompting Harvard to replace a gasoline Zamboni with an electric model, and deploying portable particle counters on flights to document cabin pollution. He also helped launch Harvard’s green‑campus initiative and radical cross‑sector collaborations.

The conversation underscores that rigorous exposure science can translate into concrete regulations and institutional change, offering a blueprint for universities and policymakers to address emerging environmental health threats.

Original Description

For more than 50 years, Jack Spengler has advanced our understanding of how environment shapes health through pioneering research on the importance of air quality, healthy buildings, and climate resilience. In conversation with longtime collaborator Linda Powers Tomasso, Spengler explores how the places we live, learn, and work shape human health. Together, they reflect on the evolution of environmental health over five decades and the importance of continued collaboration and mentorship in shaping a more sustainable future.
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SPEAKERS
■ Jack Spengler, Research Faculty, Former Akira Yamaguchi Professor of Environmental Health and Human Habitation, Harvard T.H. Chan School of Public Health
■ Linda Powers-Tomasso, Research Associate, Environmental Health, Harvard T.H. Chan School of Public Health
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Sharing diverse perspectives on public health.
Speakers do not speak for Harvard.

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