A unit of measurement used to describe the concentration of one substance in relation to another, specifically indicating one part of a substance in one billion parts of a solution or mixture. In cannabis testing, ppb is often used to measure the presence of contaminants, such as pesticides, heavy metals, or residual solvents, in cannabis products, ensuring they meet safety and regulatory standards.
🔊 parts per BIL·yun
In the Wild — Example
Modern lab equipment can detect contaminants at the parts per billion level. Extraordinarily precise.
Have a better example? Suggest one.