In an interview with The Japan Times, Tokyo Gov. Yuriko Koike stressed the need to scrutinize the contamination problem at Toyosu, the relocation site for the famed Tsukiji fish market, following revelations that more toxins have been found there.

Cancer-causing benzene at 79 times the maximum concentration allowed was detected at the site in the final groundwater sampling conducted under a two-year monitoring survey, the Tokyo Metropolitan Government said last week.

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