The Lancet Planetary Health, May 2025

The effect of air pollution exposure on menstrual cycle health using self-reported data from a mobile health app: a prospective, observational study

Toxicological evidence suggests that ambient air pollution has endocrine-disrupting properties that can affect menstrual cycle functioning, which represents an important marker of women’s reproductive health.

We aimed to estimate the effect of short-term and long-term PM2·5 exposure on menstrual cycle outcomes across the USA, Brazil, and Mexico using self-reported data from a mobile health app.