Last month, South Korea banned all fish imports from Fukushima and seven other prefectures along Japan's northeastern coast, citing growing public worry over radioactive water leaks and insufficient information from Tokyo about the measures it has taken.
Fisheries in Fukushima are nearly all closed, and fish caught in nearby prefectures sold on the Japanese market are all tested to ensure they are safe for consumption. Japan insists that radioactivity in seawater samples from the area has remained below detectable levels.
The plant's operator, Tokyo Electric Power Co., has come under fire over a spate of recent leaks and mishaps that have renewed doubts over its ability to handle the crisis. Experts have faulted TEPCO over delayed disclosures, human error and inadequate skills in measuring radioactivity, saying they have hurt the credibility of Japanese data.
Following criticism of its perceived reluctance to accept foreign expertise, Japan's government is stepping up efforts to allow international help. Prime Minister Shinzo Abe said on Sunday that Japan is open to foreign expertise in tackling the contaminated water problems at the plant.