Seal dust primarily accumulates in areas with high seal concentrations, such as beaches and ice floes. As seals molt and shed skin, fur, and other organic materials, these particles become airborne, mixing with the surrounding environment. The composition of seal dust includes not only the biological debris from the seals but also microorganisms and other particulates that they may encounter in their habitat. This composition can vary significantly depending on the species of seals present, their diet, and the environmental conditions of the area.