Ambient air in ground wards made to contain natural potassium-sodium salt is close in characteristics to the atmosphere of underground wards but has a number of specificities: daily fluctuations of concentrations of light aeroions and aerosol particles, elevated concentration of light aeroions concentration, low radiation background, minimal bacterial contamination. The stay in ground wards brings great benefit for patients with bronchial asthma. Ground speleo-climatic wards are perspective in nonpharmacological treatment of patients with allergic respiratory diseases.
The paper considers the problems of measurement of air ions for settle the tasks of medical and environmental monitoring the habitat of various objects. It discusses the metrological assessment of the physical characteristics of the environment and the reasons for the insufficient use of aeroionometry in public health. The paper also compares the characteristics and specific features of the use of devices intended for study of air ion spectra. It shows it necessary to design the devices that measure air ions, which satisfy with the requirements that they measure accurately, are easy-to-use, rapidly operate.