@littlebigfred @jonty @gigabecquerel No numbers! I wanted solid banana radiation dose numbers.

Here's a standard Australian grocery store banana (measured using an inexpensive phone dongle geiger counter of very uncertain accuracy): https://flic.kr/p/2mAxQNY
Came in a 0.34uSv/Hr - so that wall tile is about 32 of my bananas worth of radiation. Wikipedia's "banana equivalent does" is smaller, and that tile is about 110 banana equivalents according to their numbers: https://en.wikipedia.org/wiki/Banana_equivalent_dose