Which of the following is NOT a concern when storing files?

When considering concerns related to file storage, staff training sessions are not typically categorized as a direct environmental or physical concern impacting the integrity of the files themselves. The primary focus of file storage is ensuring the preservation of the documents, which involves managing environmental conditions and physical threats that could cause deterioration or damage.

Humidity control is crucial because excessive moisture can lead to mold growth and deterioration of paper documents. Insect infestation poses a risk as pests can physically damage materials. Dust prevention is important as dust accumulation can harm documents over time, affecting their readability and overall condition. Conversely, staff training sessions, while essential for ensuring that personnel understand best practices for file handling and storage procedures, do not directly impact the environmental conditions or physical storage integrity of the files. Therefore, it stands out as the option that is not a concern directly related to the files’ physical storage environment.