(NEWSER) – Good news: A mathematical model has been created that could help save your life in the event that your city is hit by a nuclear bomb. Scientist Michael Dillon's model, published today, is about reducing radiation risk from the bomb's fallout, and calculates "optimal shelter exit time." The longstanding advice has been to immediately seek shelter, ideally underground, if a bomb hits. But there is better and worse shelter—the latter being "lightweight" buildings (such as ones made of wood) or ones without basements; the AFP reports more than 20% of US homes fall into the worse category. Here is Dillon's determination for people living within 20 miles of a low-yield nuclear blast, meaning one a bit smaller than Hiroshima:
- If it would take five minutes or less to reach better shelter (that concrete basement, or the center of a large building, like a big office, reports LiveScience), bypass the more immediate shelter and go there straight away.
- If better shelter is 15 minutes away, stay in the worse shelter for up to 30 minutes, then head out.