Justin Richardson

Assistant Professor
biogeochemistry
trace metal cycling
plant-soil-rock interactions
Phone: 
(413)
Education: 
PhD 2015 Dartmouth College
Research Interests: 

I investigate metals and metalloids in the Critical Zone, which is the zone from the tops of the trees down to the bottom of the groundwater. Metals and metalloids can serve as nutrients but may also be toxic to humans and wildlife, depending on their chemical properties and concentrations. My research addresses three biogeochemical topics. First, I track the transport of pollutant trace metals (e.g. lead, mercury) to determine human inputs and the natural processes that promote their sequestration. Secondly, I investigate mechanisms that control accumulation and bioavailability of macro and micronutrient metals. Third, I use metals and metalloids to quantify biogeochemical changes during soil formation and ecosystem disturbances. I use a combination of laboratory based-experiments and field sampling campaigns. For quantitative analyses, I apply mass spectrometry, x-ray based techniques (XRF, XANES, XRD), stable isotopes, and metal ratios and indices. I have studied plant-soil-rock interactions across the United States and internationally, but I primarily focus on the forests of New England and northeastern states.

Contact us

Department of Geosciences
627 North Pleasant Street
233 Morrill Science Center
University of Massachusetts
Amherst, MA 01003-9297

Phone: (413) 545-2286
Fax: (413) 545-1200