The 19th ICHMET is a continuation of the highly successful conference series that started in 1975 in Toronto, Canada. The 2018 conference will be held at the University of Georgia Center for Continuing Education presenting highly diverse content in research areas ranging from the environmental impact of manufactured nanoparticles to the bioavailability of trace elements and radionuclides in the environment, with more than 225 presentations representing over 20 different countries.