I didn't pay that much attention because a lot of it felt political (in both valid - Japan has been known to not be transparent about its post-fukushima data - and invalid - China framing it as an anti-Japan issue in its media - ways) but fwiw: https://www.theguardian.com/environment/2023/aug/25/fukushima-daiichi-nuclear-power-plant-china-wastewater-release:

"Scientists have pointed out that China’s own nuclear power plants release wastewater with higher levels of tritium than that found in Fukushima’s discharge, and that the levels are all within boundaries not considered to be harmful to human health."

So liddat la.... Though I've been to Tohoku region post-tsunami and ate the foods all, so I'll check in with y'all la in a couple more decades kot....