Maria M. Williams, editor, joined Toxipedia in 2009. Maria writes, recruits, and edits content for Toxipedia and assists with site management. Her recent articles include Environmental Health Effects of Marijuana Cultivation, Toxic Chemicals in Food Packaging, and Toxic Pollution and Climate Change.

Previously Maria spent five years at Toxic-Free Future (formerly Washington Toxics Coalition) as project manager, research and education associate, and information services coordinator, focusing on toxic chemicals in consumer products. Maria also served as environmental education specialist for the Local Hazardous Waste Management Program, beach naturalist for the Seattle Aquarium, and guest editor for PCC Natural Markets. She holds a BA in environmental studies from Oberlin College and a professional editing certificate from UC Berkeley. She can be reached at mwilliams@toxipedia.org.