Staying in a dust cloud or asteroid belt for long periods of time would be highly challenging and potentially dangerous for humans or any other beings, primarily due to the following reasons:
Radiation: Dust clouds and asteroid belts are located within space, where there is a significant risk of exposure to cosmic radiation, particularly high-energy particles from the sun and other distant sources. Prolonged exposure to such radiation can lead to serious health issues, including an increased risk of cancer and damage to vital organs.
Microgravity: While dust clouds and asteroid belts are not massive enough to generate substantial gravitational forces, they are typically located within space environments characterized by microgravity or very low gravity. Long-term exposure to microgravity can have severe impacts on the human body, such as muscle atrophy, bone density loss, cardiovascular issues, and potential harm to the immune system.
Lack of Life-Supporting Resources: Dust clouds and asteroid belts are essentially empty space with dispersed particles. There are no resources like air, water, or food readily available in such environments. Surviving in these regions would require bringing along all necessary life-support systems, which presents significant challenges in terms of logistics, weight, and energy requirements.
Hazardous Space Debris: Besides dust, asteroid belts may contain larger objects like asteroids and meteoroids. Collisions with such debris could be catastrophic and result in serious damage to spacecraft or habitats.
For these reasons, living in a dust cloud or asteroid belt for long periods of time is not feasible with current technology and would likely require advanced spacecraft equipped with robust radiation shielding, artificial gravity systems, and self-sustaining life-support capabilities. we haven't seen any missions or projects involving extended human habitation in these environments, as they are currently considered inhospitable for long-term stays.