TRAP: Traffic Related Air Pollution Linked to Millions of Pediatric Asthma Cases Worldwide

MedicalResearch.com Interview with:
Ploy Pattanun Achakulwisut, PhD
Postdoctoral Scientist in Climate change, Air pollution, and Public Health
Milken Institute School of Public Health (Anenberg Group
The George Washington University, D.C 

MedicalResearch.com: What is the background for this study?

Response: Dozens of epidemiological studies have found positive and generally statistically significant associations between long-term exposure to traffic-related air pollution (TRAP) and asthma development in children. The evidence is most robust for nitrogen dioxide (NO2), a major component of and commonly used surrogate for the complex TRAP mixture. Recent reviews conducted by the US Environmental Protection Agency and Health Canada concluded that there is “likely a causal relationship” between long-term NO2 exposure and pediatric asthma development.

Using NO2 as a proxy for TRAP, our study provides the first global estimate of the number of new asthma cases among children that are attributable to traffic pollution, using fine spatial-scale global datasets that can resolve within-city and near-roadway NO2 exposures.

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