Chem Top Pic
Eastern redcedar is an excellent recorder of changes in environmental chemistry.

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.

Cadmium concentrations to redcedar wood

Cadmium
Cadmium concentrations in eastern redcedar over 250 years

Lead in the wood of 14 eastern redcedar trees

Leadgraph
Lead concentrations in eastern redcedar over 270 years