The study will involve doing an analysis not only of benzene biomarkers and other volatile organic compounds, but also of certain heavy metals in urine and hair samples. (sciencedaily.com)
Compliance of Glass Packaging with Human and Environmental Health and Safety Toxics, February 2013 Over the past two decades, federal, state, and international laws have sought to limit the presence of certain heavy metals in all forms packaging. (GPI.org)
Certain heavy metals aren't a problem in small doses and are even necessary to the body, but the harmful ones like lead, mercury, and the lesser known (but just as problematic) cadmium can bioaccumulate in the body faster than our bodies can detox them. (wellnessmama.com)