Toluene Challenge in Exposure System Post published:July 10, 2017 Post category:EH Photo of the Week Toluene being injected into the exposure system using a programmable automated syringe pump, June 26, 2017 Read more articles Previous PostDr. Humphrey Receives EPA Funding for Watershed Work Next PostBS Environmental Health Student in CDC Summer Internship You Might Also Like Hog Lagoon Cover July 9, 2019 World Environmental Health Day 2022 Selfie Poster September 26, 2022 MS Environmental Health Student Awarded at the NEHA Conference September 20, 2017