In 2020, Jessica Trowbridge and colleagues published “Exposure to Perfluoroalkyl Substances in a Cohort of Women Firefighters and Office Workers in San Francisco,” hereafter “Exposure to PFAS in Women Firefighters,” in the journal Environmental Science & Technology. The researchers, affiliated with the University of California in Berkeley, California, aimed to investigate occupational exposure to perfluoroalkyl substances, or PFAS, by comparing blood samples between female firefighters and office workers. PFAS are synthetic chemicals found in firefighting foam, textiles, and many household products. Research has shown that exposure to PFAS can increase the risk of health complications, including cancer and reproductive concerns. Trowbridge and colleagues sought to address a gap in previous studies of PFAS, which primarily focused on male firefighters. Their study documented increased PFAS exposure in female firefighters compared to office workers and highlighted potential health risks, particularly for those who are pregnant.