John D. Spengler has significantly contributed to improvements in indoor air quality throughout his 50-year career, impacting areas like hockey rinks and airplanes. His research led to smoking bans on flights and increased awareness of childhood asthma in public housing. Initially focusing on outdoor pollution, Spengler’s interest in indoor environments began with the “Six Cities” study at Harvard, revealing indoor air pollution levels in homes comparable to more polluted cities.
Spengler retired from his position as the Akira Yamaguchi Professor of Environmental Health and Human Habitation on January 2 but continues as a research professor. In a recent discussion with Linda Powers Tomasso, Spengler highlighted how energy efficiency efforts during the 1970s oil embargoes worsened indoor air quality due to tighter home insulation. This realization spurred numerous dissertations and ongoing research into indoor environments.
The “Six Cities” study influenced the 1990 Clean Air Act Amendments, which imposed stricter regulations on pollutants like sulfur dioxide and nitrogen oxides. Despite challenges from industry groups, Spengler’s work on indoor air pollution remains pivotal. In 1983, Spengler co-authored a report on air quality in airplanes, leading to an FAA smoking ban after discovering pollution levels exceeding 1,000 micrograms per cubic meter.
Spengler also examined air quality in ice rinks, identifying emissions from Zamboni machines as a source of pollutants like carbon monoxide. His findings prompted manufacturers to advise rink owners on machine safety. In Boston’s public housing, Spengler collaborated with the housing authority to mitigate asthma triggers such as smoke and cockroaches.
At Harvard, Spengler established the environmental management master’s program and co-founded the Green Campus Initiative, now the Office for Sustainability. This initiative, supported by Harvard’s leadership, led to the university having the most green-certified buildings globally. Spengler emphasized the importance of addressing indoor air quality as a systemic issue, involving ventilation and sustainability considerations.
Spengler noted that indoor environments affect everyone, with recurring issues like mold and pests requiring comprehensive solutions. He acknowledged his success was due in part to strong collaborations at Harvard and the support of his family and students. Many of his former students have advanced in their careers, with some leading public health schools or achieving significant milestones globally.
Original Source: news.harvard.edu
