The chair of The Citadel Biology Department, John Weinstein, Ph.D., is leading change through ongoing, collaborative environmental toxicology research related to the impacts of degrading plastics and tires on waterways and marine life.
The research is conducted by undergraduate cadets and graduate students, in conjunction with funding Weinstein and the college have received from the S.C. Sea Grant Consortium, National Science Foundation and other sources.
Several continuing projects are underway, with the most recent being a study into micropastics in sea life and how that may impact human health. This research is being conducted as part of the Center for Oceans and Human Health and Climate Change Interactions collaboration funded by the National Institute of Environmental Health Sciences.
Addtionally, in 2018, Weinstein published a first of its kind study into what he describes as the biggest polluter: tire micro-particles that have washed off of bridges and roadways as long as vehicles using tires have existed. The natural Resources Defense Council and National Geographic are among the entities that published the results of this research.
Some of Weinstein’s earlier work assessed the volume of plastic refuse in the Charleston coastal area. Another examined how tiny brine shrimp respond after ingesting microscopic beads of polypropylene, a type of plastic used in bottle caps and food containers.
One of the first comprehensive findings reports from the research proved that plastic refuse in the state’s coastal marshlands is breaking down into micro-particles much more rapidly than previously understood, and that the plastic spheres are commonly ingested by tiny grazing sea creatures, eventually killing them.
The work demonstrates that microscopic plastic particles can be just as hazardous to sea life as whole plastic bags and other larger debris, and that beach and marsh clean up sweeps are needed frequently to remove plastic waste as quickly after it enters the salt marsh environment as possible.
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