Chemical Mass Balance (CMB) is a receptor model used to estimate the contributions of various sources to a set of observed environmental samples by solving a system of linear equations. It relies on the principle of conservation of mass, assuming that the chemical composition of sources is known and constant over the sampling period.

Chemical Mass Balance

A receptor model is a mathematical or statistical tool used to identify and quantify the sources of pollutants in the environment by analyzing the chemical and physical properties of the pollutants measured at receptor sites. It helps in understanding the contribution of different sources to pollution levels, aiding in environmental management and policy-making.

Receptor Model

Environmental samples

Contributions of various sources

A system of linear equations is a collection of two or more linear equations involving the same set of variables, where the solution is the set of values that satisfy all equations simultaneously. Solving these systems can be done through various methods such as graphing, substitution, elimination, or using matrices and determinants for more complex systems.

System Of Linear Equations

The conservation of mass states that in a closed system, the mass of substances remains constant over time, regardless of the processes acting inside the system. This principle is fundamental in chemistry and physics, ensuring that mass is neither created nor destroyed in chemical reactions and physical transformations.

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