Int'l journal lauds 1993 paper by researchers at Japan's Ehime Univ. as 'milestone'

In 1993, researchers from Ehime University in Japan published a groundbreaking study on the global spread of persistent organic pollutants (POPs), which has since been recognized as a milestone article by the prestigious journal Environmental Science & Technology. The study, led by Professor Hisato Iwata and his colleagues Ryo Tatsukawa and Shinsuke Tanabe, examined the movement and accumulation of POPs, such as DDT and HCH, around the world.

The team conducted five research voyages, measuring POP concentrations at various locations, including the Arctic. Their findings revealed that HCH was more prevalent in surface seawater than in the atmosphere, indicating long-distance transport through the atmosphere and absorption into cold waters. The study has been cited over 1,300 times in academic literature and played a crucial role in the creation of the Stockholm Convention on Persistent Organic Pollutants in 2004.

Tatsukawa and Tanabe, both pioneering figures in environmental chemistry, continued to contribute to the field, with Tatsukawa detecting highly toxic dioxins in waste incineration plants and Tanabe investigating contamination in marine ecosystems. Ehime University has since established centers for marine environmental studies and the preservation of biological samples, fostering global collaboration in environmental research.