Principles of Mixing and Fractionation Models

Upfront consideration of possible mixing scenarios is required to achieve an optimal sampling design and deliver a successful project. This will also help increase efficiency by reducing the number of samples, workload and cost without compromising the final outcomes. Chapter 2 summarised key information about a conceptual framework for devising a sampling design for tracing non-particulate agricultural pollutants in surface and groundwaters on a catchment scale. This chapter provides a short introduction to mixing models applicable to tracers for water pollution studies.