For context, you get 6 mSv per year from natural background sources plus normal medical diagnostics in the USA. In Denver you get 9 per year due to proximity to space (cosmic rays ..). In Ramsar Iran the population gets 150 mSv/yr due to higher natural radiation in the local geology.<p>Regular consumption of these mushrooms leading to an additional 0.27 mSv doesn't concern me even a little.<p>All publications and news discussing radioactive contamination should be required to be quantitative in mSv units like this one. The difference between detectible and hazardous in radiation is about 10 orders of magnitude.<p><a href="https://www.epa.gov/radiation/radiation-sources-and-doses#averagedoses" rel="nofollow">https://www.epa.gov/radiation/radiation-sources-and-doses#av...</a><p>More dose info; <a href="https://www.energy.gov/sites/prod/files/2018/01/f46/doe-ionizing-radiation-dose-ranges-jan-2018.pdf" rel="nofollow">https://www.energy.gov/sites/prod/files/2018/01/f46/doe-ioni...</a>
The levels don't seem huge, and you need to be a fairly committed consumer of wild mushrooms to see a effect comparable to regular flying.<p>But it is interesting to note that the relevant consumer laws prevent the sale of eg. derived wild boar products from affected animals with similar contamination, which must be doing wonders for the French wild boar meat trade.