Ozone Content over the Russian Federation in the First Quarter of 2024

The review is compiled according to the results of the total ozone (TO) monitoring system operation for the CIS and Baltic countries. The system functions in operational mode at the Central Aerological Observatory (CAO). The monitoring system uses the data from the national network equipped with the M-124 filter ozonometers, being under the methodological supervision of the Main Geophysical Observatory. The quality of the entire system functioning is operationally controlled in CAO by comparison with the OMI satellite equipment observations (NASA, USA). Basic TO observation data are generalized for each month of the first quarter of 2024 and for the first quarter as a whole. The data of routine surface ozone observations in the Moscow region are also summarized.