How you think you can make stuff up and come to conclusions when the authors of the report have come to no conclusions is... well, there is a term for that.....
C&P from the OP... in Bold is the report's statements about no conclusions and maybes
Scientists involved in producing the UNSCEAR report hope that their independent summary of the best available data could help to dispel some of the fear about fallout that has grown over the past year (see Nature 483, 138140; 2012). As well as providing a preliminary assessment of workers exposure, the UNSCEAR report concludes that the Japanese governments estimate of the radiation released was correct to within a factor of ten, and that further study is needed to fully understand the impacts of the accident on plants, animals and marine life near the power station. When a final version of the report is approved by the full UNSCEAR committee next year, it should provide a useful baseline for future studies.
Lets also consider this idea of a factor of ten. What is that supposed to mean? That is was a tenth, or it was ten times greater?
Did the report use the just released data from Tepco that showed much greater >>>100% releases than what UNSCEAR had because Tepco just did release it's numbers.
So, please, just quit making stuff up such as:
"..nothing needs to change in their conclusions."
Because even they say they used available data, it is preliminary, and a final version is due next year, when it WILL have changed. How in the heck can you sit there and say it is complete when even they say their report is NOT?
There is a term for ideas like yours.