Chernobyl by comparison was 1/3 the size of Unit 3 at Fukushima . Chernobyl's single Reactor was a 30 percent melt down and never had spent nuclear cores aka fuel rods or fuel pools above it that were Atomized & Aerosolized like Fukushima .
Reactor 3 at Fukushima had many spent insidiously dangerous nuclear cores sitting in the pools for many years cooling . THOSE FUEL POOLS ARE MISSING ALONG WITH THE NUCLEAR CORES THAT WERE STORED THERE !! Just because they were not going through the chain reaction at the time doesn,t mitigate their part in these equations of releases they have to always be factored into the models but have never been factored in .