We live in a soup of potentially dangerous chemicals, from pesticide residues to lead in aging pipes and buildings. Many of these substances are toxic at certain doses; however, untangling their effects on our health can be extremely difficult. How can scientists tease apart exposure to chemicals from other health-related factors like diet? Which toxins should be avoided completely, and which are safe at low levels?
Join us from 3 p.m. to 4 p.m. EST on Sunday, 17 February, for a live Google+ Hangout to discuss the latest research on contaminants and our health with experts who track and measure their effects. Leave your questions for our guests in the comment box below. We will address them during the chat.
Sam, an environmental scientist at the University of Southern Maine who focuses on lead, has been on the faculty of the Department of Environmental Science since 1996. As of 2010, Sam is Associate Vice President for Academic Affairs for Research, Scholarship, and Creative Activity.
Justin Teeguarden, a systems toxicology scientist at Pacific Northwest National Laboratory, has been engaged in the field of toxicology since the late 1980's. Since that time, he has worked in a variety of capacities most of which involved some aspect of risk assessment and computational modeling
Associate Professor, Tufts university, Department of Infectious Disease and Global Health Wildlife Clinic & Center for Conservation Medicine