Tree rings can record changes in environmental chemistry, as each ring has a unique, measurable elemental composition.
Tree rings can reveal long-term changes in soil and atmospheric chemistry, with applications for research of pollution, disturbance, climate change, and more. One of the early focal points of research at CTRS, environmental chemistry research has continued and grown to include new opportunities for collaboration with the MU Research Reactor, currently the most powerful research reactor in the U.S.