Both metals and organic chemicals are released to the environment via natural and anthropogenic activities. Many of them are pollutants that pose harmful effects on ecosystem and human health. This session will bring together environmental scientists, ecologists, geoscientists, and epidemiologists under the discussion of Geohealth. We welcome presentations covering new advancements in linking environmental sources and biogeochemical processes to health relevant impacts of any toxicants or nutrients, with particular interests in studies looking at the influence of global changes.