The Age of Carbon

figure a
The Raymond lab has the capability to process carbon in water for radiocarbon 14C dating.  Information on the age of carbon in rivers provides us with evidence of how long terrestrial material resides on land before it is transported to the ocean.  We have also used radiocarbon measurements to constrain the amount of petroleum byproducts in rain, rivers, glaciers and wastewater.  FIGURE A.

Griffith, D. R., R. T. Barnes, and P. A. Raymond (2009), Inputs of fossil carbon from wastewater treatment plants to U.S. Rivers and Oceans, Env. Sci. Technol., DOI:10.1021/es9004043.

Raymond, P. A., and J. E. Bauer (2001), Riverine export of aged terrestrial organic matter to the North Atlantic Ocean, Nature, 409(6819), 497-500.

Stubbins, A., et al. (2012), Anthropogenic aerosols as a source of ancient dissolved organic matter in glaciers, Nature Geoscience.
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