What is "ppb"

init. parts per billion

PPB can stand for:

• Production-possibility boundary, a graph that shows the different quantities of two goods that an economy could efficiently produce with limited productive resources
• Party political broadcast, a type of political programming in the United Kingdom
• parts per billion, a unit of concentration
• Powdered Peanut Butter, PPB® is a brand from Hale Naturals® a U.K. company that produces a blend of peanut flour and sugar to make a powdered form of peanut butter.
• Portland Police Bureau, a police agency for the city of Portland
• Partido Progressista Brasileiro, former name of Progressive Party of Brazil
• Pirate Party of Brazil
• Pirate Party of Belgium
• Pirate Party of Bulgaria
• Pleuropulmonary blastoma, a type of lung cancer
• Plasma protein binding, a factor contributing to the efficacy of a pharmacological agent
• PPB Group, a Malaysian company
• Prairie Public Broadcasting