They can provide an X-Y-Z platform that is both stable and precise for sample collection. Drones can give you adequate time for collection of data that is integrated and time bound. They are capable of providing real-time data as well as imagery. Drones can be used for development of autonomous methods of sample collection.
There are two types of drones in existence that can help in determining air quality. The first one is the fixed wing type that can carry larger payloads, but it must remain in an X-Y plane with constant motion. The second one is the multi-rotor UAV that can only carry small payloads, but has the capability of collecting samples while it is in motion and also when it is hovering over a specific location.