How should soil samples be stored after collection?

Storing soil samples properly is crucial for preserving their integrity for analysis. Utilizing a cardboard box with a marked seal is the correct method for several reasons. Cardboard allows for adequate airflow, which prevents moisture buildup that could alter the sample composition or promote degradation. The marked seal helps to identify the sample's origin and ensures that the evidence remains uncontaminated and secure during transport and analysis.

Other storage methods may compromise the soil samples. For instance, plastic bags can trap moisture, leading to changes in the soil's chemical and biological properties. Keeping the samples in their original collection bag without a seal may expose them to contamination or loss of important information. Additionally, using an airtight container may create a humid environment inside, which could similarly affect the soil's characteristics. Therefore, storing soil samples in a cardboard box with a marked seal is the best practice to maintain their viability for future examination.