The behaviour of ferromagnetic aerosols near a superconductor surface has been investigated. Some regular features of the interactions between the microparticles and the superconductor were established. If the aerosols are illuminated, firstly decay of the previously induced current at the superconductor ring is observed when these aerosols are present in the field and secondly some particles are repelled from the superconducting surface with a force according to an inverse square law.