Brawn Team- opinion on your food test results for a mom?

Hello brawn team, I was just wondering if you had thoughts/opinions on why the strawberries have cesium but spinach or wild mushrooms do not? This seems odd to me especially since spinach is such a leafy vegetable and strawberries are smaller?

Thank you Laura

bump

bump

I too would love some

I too would love some thought on why/ how different produce is storing more than others.
Thank you for your explanations, for us non-science types.