Did the Fukushima Daiichi nuclear plant release radioactive black water in the ocean? No, that's not true: The video footage of such a claim is from Acapulco, Mexico, in June 2020.
The claim was published in a video (archived here) by the account @nangezaici on TikTok, on August 25, 2023, under the title "심하다 핵오염수 배출 현장." It says (translated from Korean to English by Lead Stories staff): "Discharge of radioactively contaminated water gone too far." One of the hashtags is (translated) Fukushima. The video began:
Actual footage of radioactive contaminated water discharge
This is what the post looked like on TikTok at the time of writing:
(Source: TikTok screenshot taken on Mon Aug 28 02:09:33 2023 UTC)
The post claims that the video shows Fukushima discharge. But in fact, the footage is from Acapulco, Mexico. The footage went viral in 2020 as "Acapulco black water sewage." It shows dirty black water going directly into Acapulco Bay, a popular tourist area in Mexico. Mexican local authorities started an investigation after the video went viral, according to Reuters.
As of August 24, 2023, Japan started the planned discharge of Fukushima treated water to the Pacific Ocean.