They say: It’s below the normal limit.
But the normal limit is what you get everyday, without the atomic accident.
The atomic accident adds an additional dose to the normal dose.
This below the limit dose is added to the limit dose – both added = over the limit.
It also depends on what you get: Iodine 131, Cesium 137, Strontium are man made – your body is not adapted to them, neither does he know them.
The human body can not distinguish between the good potassium and cesium for example and let the cesium in, and saves it. CONSEQUENCES HERE
Not only that: Everytime the normal radiation dose is increased by IAEA and the health ministry by X, it means that eating X oranges means: I only eat one, and if I’m going sick because of that, it means that there must be another cause than oranges.