Concentration units, such as mg/kg and ppm, describe the amount of substance present in a given volume or mass. These units are crucial in fields like toxicology, where they help determine toxic doses, and environmental science, where they monitor pollutant levels. Conversions between units, such as mg/kg to ppm, are essential for data interpretation. Moreover, advanced concepts like bioconcentration, bioaccumulation, and dose-response curves further enhance the understanding of chemical exposure and its effects.
