Not accurate. The 'pressure cooker' is the reactor vessel it self. Outside that is the secondary containment which is steel and concrete. Beyond that, is the building you see from the outside.
Study the drawing.
First, the GE BWR-1 reactor in question has NO 3rd containment. If the "pressure cooker" is breached, the fuel is exposed to the environment.
Secondly, Cesium-137 has a 30yr half-life. If you were to get a big breath full of that steam, you would likely have health problems, if not serious health problems. That's not to say it was concentrated or didn't adequately disperse at sea.
I wouldn’t go so far as to call it “BS”. That seems a bit harsh to a rather reasoned explanation by someone trying to help people to chill out, which is badly needed.
Let’s be charitable and call it inaccurate while we wait to see. As you implied, there is a lot of good info here.
If the author made an honest error which might invalidate the core of his analysis, then that will be apparent.
“First, the GE BWR-1 reactor in question has NO 3rd containment. If the “pressure cooker” is breached, the fuel is exposed to the environment.”
From where are you getting this information?
Not accurate. The 'pressure cooker' is the reactor vessel it self. Outside that is the secondary containment which is steel and concrete. Beyond that, is the building you see from the outside.
Study the drawing.
One reply to the Cesium question is at the link:
“The cesium was in trace amounts and dispersed via the prevailing winds over the ocean. It then reacts immediately with water to produce cesium hydroxide (CsOH) and is dissipated.”