Japan Bans 'Radioactive' Green Tea Contamination found in tea plantations near Fukushima By Rob Quinn, Newser Staff Posted Jun 3, 2011 2:15 AM CDT 4 comments Comments Green tea, usually hailed for its health-giving properties, is the latest Japanese product banned by authorities. (Shutterstock) (Newser) – Some green tea just got unhealthy. Japan has banned the shipment of green tea leaves from a wide swath of tea-growing regions north of Tokyo after excessive levels of radioactive contamination were detected. The ban, the latest to affect produce from around the Fukushima nuclear plant, covers both fresh and dried tea leaves and some shipments are being recalled, CNN reports. The shipment of plums from some areas has also been banned.