{"data":{"id":"us-va/12vac5-481-250","jurisdiction":"us-va","citation":"12VAC5-481-250","heading":"Units of radioactivity","body":"For the purposes of this chapter, activity is expressed in the special unit of curies (Ci) or in the SI unit of becquerels (Bq), their multiples, or their disintegrations (transformations) per unit of time.\n\n1. One becquerel equals 1 disintegration per second (s-1).\n\n2. One curie equals 3.7 x 1010 disintegrations per second equals 3.7 x 1010 becquerels equals 2.22 x 1012 disintegrations per minute.","path":["Title 12. Health","Agency 5. Department of Health","Chapter 481. Virginia Radiation Protection Regulations","Part I. General Provisions"],"source_url":"https://law.lis.virginia.gov/admincode/title12/agency5/chapter481/section250/","current_through":"2026 Regular Session (effective July 1, 2026)","vintage":"","retrieved_at":"2026-09-14T04:50:25Z","sha256":"ac5d6b5a8f7e4d2b154ba57286f6b1821a96755875812d7d1874ccac599e772c","source_id":"us-va-vac","stale":false,"prev":"us-va/12vac5-481-240","next":"us-va/12vac5-481-260"},"notice":"GroundRules: Original legal text. Not legal advice."}