BRUNSWICK, Maine, Oct. 18 -- Bowdoin College issued the following news: * * * Senior Ollie Tannahill Targets Environmental Pollutants By Rebecca Goldfine Using catalysts and light, chemistry major Tannahill is experimenting with ways to remove toxins from our environment. Tannahill is pursuing a yearlong honors project in Beth Stemmler's analytical chemistry lab in Druckenmiller Hall. He's one of six students working on independent research under Stemmler's mentorship. Using lab processes like high-resolution liquid chromatography-mass sp more PR