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There are generally two ways to obtain samples. On one hand a user can select the all-layer sample and the option of the target point sample is also available. In addition, there is the possibility of a soil sample.
In this method, a sample is taken throughout all layers of a material to obtain a representative cross-section of the whole. For example, all-layer samples are taken in grain silos. However, if the sample is a heterogeneous material, it should be sampled at several points across the entire depth or width, which is especially important when sampling bulk materials because the small, dust-like particles accumulate on the ground due to movement or transport and a single sample from the upper portion of the material would give a false result.
This procedure is particularly applicable when a punctual contamination of the sample is assumed. For example, by means of the sampling at a specific point, a statement can be made about the condition of the material at said point, or a representative cross-section result can be obtained by sampling at a plurality of target points.
Particularly in the case of suspected contaminations in public lakes or water bodies, soil samples are used. This can be used to detect and later analyze deposits or residues in the soil that are harmful to the health.