> 30% is way too high. It is not something to strive for. It is offered as a warning. Like how the US suggests 50 mSv/year for occupational radiation exposure

> 30% is way too high. It is not something to strive for. It is offered as a warning. Like how the US suggests 50 mSv/year for occupational radiation exposure. That doesn't mean you should go out and purposefully expose yourself to radiation to hit 50 mSv. You still want to minimize exposure to the greatest extent possible. The figure indicates the danger zone where if you see yourself drawing near, you need to get off the path you are going down.