Parts Per Million | Estateplanning | Vibepedia.Network

Parts per million (ppm) is a unit of measurement used to express small concentrations of substances, typically in chemistry and environmental science. It is defined as the number of parts of a substance per million parts of a mixture. Ppm is commonly used to measure the concentration of pollutants in air and water, as well as the levels of nutrients in soil and fertilizers. For example, the Environmental Protection Agency (EPA) uses ppm to set standards for drinking water quality, while companies like Monsanto and DuPont use ppm to measure the concentration of pesticides in their products.