Low-level atmospheric dust is often more concerning than higher-level tropospheric dust because it can result in health and/or economic problems. The height of dust clouds can only be determined reliably at night with the dust RGB product.

The dust RGB image above has one large area of dust, with differing heights throughout the swath. The more blue the dust area, the lower the altitude of the cloud. The more red the dust area, the higher the altitude.
Any given colour of dust in the dust RGB can have varying degrees of saturated colour. The more saturated the colour the thicker the dust is. If the bright pink is highly saturated, then it is thicker. So, the dust in southern Libya is thicker than the dust in northern Mali. If the low-level, purple-blue dust is a more saturated colour it is also thicker. The more diffuse the colour the thinner the dust cloud is overall. Therefore, the low-level dust in southeast Mauritania is thicker than the low-level dust in central Chad.