WHOI senior scientist Ken Buesseler has collected and analyzed the seawater surrounding the Fukushima Dai-ichi nuclear power plant since the 2011 disaster. As low levels of radiation travel across the Pacific, Buesseler has launched a crowdsourcing campaign and website to monitor radiation levels along the West Coast of North America. (Photo courtesy of Ken Buesseler, Woods Hole Oceanographic Institution)

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WHOI senior scientist Ken Buesseler has collected and analyzed the seawater surrounding the Fukushima Dai-ichi nuclear power plant since the 2011 disaster. As low levels of radiation travel across the Pacific, Buesseler has launched a crowdsourcing campaign and website to monitor radiation levels along the West Coast of North America. (Photo courtesy of Ken Buesseler, Woods Hole Oceanographic Institution)