Research technician Carissa Dressel isolates cells in a laboratory experiment in DePaul’s McGowan North Building on Friday, April 19, 2024. Professor Margaret Bell supervises students who are researching the effects of forever chemicals like PCBs and PFAS in the brain. Story at DePauliaOnline.com. 📸 and 📰: Rose O’Keeffe for thedepaulia #earthday #earthday2024 #pfas #pcbs #depaul #depaulu #depauluniversity #biosciences #lab #stem #womeninstem