The combination of different exposure routes (e.g., water, food, indoor environment) significantly increases analytical requirements to encompass different sample matrices and multiple series of analytes (parentcompounds, degradation products,metabolites) in order to produce an accurate, holistic assessment of exposure. As a consequence, there is an increasing requirement for more complex analytical methods. However, the validation of expanded methodology becomes problematic because the availability of appropriate, matrix-matched reference materials is limited for many compounds of potential concern. Thus, the expansion of analytical capability may be at the cost of less demonstrable method performance. In terms of public health risk management, could it be better to obtain larger volumes of exposure data using less robust (but perhaps still acceptable) methods?