Abstract Because Japan has few minorities, one might expect that its environmental-injustice (EI) threats are rare. This article suggests they are not rare. It also shows that prima-facie evidence for EI arises not only because of siting noxious or polluting facilities in poor or minority communities, but also because of racism and classism that cause disaster-related environmental injustice (DREI)—like that occurring after Hurricane Katrina. Using the 2011 Japanese Fukushima-Daiichi nuclear disaster (FD) as a preliminary case study—despite the limits of available, ultima-facie information about FD harms—the article argues for four claims. (1) Before the FD accident, prima-facie evidence shows that poor people, “black” (buraku) blue-collar workers, and children were EI victims whose poverty and powerless caused them to accept the risky FD siting. (2) Before the accident, prima-facie evidence likewise shows that these same EI victims bore higher medical risks because of allowable FD radiation releases. (3)...