This quiz lets you estimate your annual radiation exposure. It asks you about where you live (altitude, location, type of house) and what you do (how often you travel by airplane, medical info, and household activities). From that, it calculates how much radiation you are exposed to in the course of your day-to-day activities. At the end of the quiz your exposure is compared to the U.S. average of 360 mrem per year. It also includes information about how much nuclear facility workers are typically exposed to (an extra 12 mrem per year), as well as the legal maximum amount for radiation workers (5000 mrem per year). Hanford is a nuclear production site in Washington State.