What is the term for the amount of chlorine applied in milligrams per liter?

The term for the amount of chlorine applied in milligrams per liter is dosage. In water treatment, dosage specifically refers to the quantity of a chemical that is introduced to treat the water effectively. When measuring chlorine, this quantity is expressed in milligrams per liter (mg/L), which directly indicates how much chlorine is being added to the water to achieve desired disinfection levels.

Concentration, while related, refers to the actual amount of chlorine present in the water at any given time, rather than the amount being added. Residual refers to the remaining amount of chlorine present in the water after a certain period, which is important for understanding the effectiveness of disinfection. Demand refers to the amount of chlorine that is consumed by the water and other contaminants, not the amount being dosed initially. Understanding these distinctions is crucial for effective water treatment and ensuring compliance with health standards.