Proceedings of the International scientific and practical conference ―Science in the Modern World‖ (May 4-6, 2026) / Publisher website: www.naukainfo.com. – Barcelona, Spain, 2026. - 260 p.

66 Table 1. Results of measured concentrations of O₂, CO₂ and CO at tracking points № points Point coordinates O₂ , % CO₂, ppm CO, ppm 1 48°55'42.9"N 24°41'44.3"E 20 428 0 2 48°55'43.8"N 24°41'42.4"E 20 412 0 3 48°55'43.4"N 24°41'41.2"E 20 406 0 4 48°55'43.9"N 24°41'39.4"E 19,9 416 0 5 48°55'44.4"N 24°41'37.8"E 19,9 421 0 6 48°55'45.0"N 24°41'36.1"E 19,8 409 0 7 48°55'45.5"N 24°41'33.8"E 19,8 433 0 8 48°55'46.2"N 24°41'31.4"E 19,7 407 0 9 48°55'46.8"N 24°41'30.1"E 19,7 410 0 10 48°55'47.3"N 24°41'28.3"E 19,7 410 0 11 48°55'48.3"N 24°41'25.8"E 19,7 400 0 12 48°55'49.2"N 24°41'26.8"E 19,8 419 0 13 48°55'50.3"N 24°41'28.2"E 19,8 416 0 14 48°55'51.8"N 24°41'30.1"E 19,8 416 0 Norma ~20,9% ~400 ppm Maximum value MPC (maximum permissible concentrations) 5 mg/m³ (~4 ppm) After removing the data, instead of sourness ranging between 19.7–20.0%, the CO₂ concentration became 400–433 ppm, while carbon oxide (CO) was not detected at all points (0 ppm). The presence of CO can be explained by the openness of the territory, sufficient air mixing, as well as the presence of intense sources of intermittent combustion at the time of extinction; In addition, this gas readily dissipates and may not be fixed at low concentrations. The comparison of the results with the standard values showed that instead of acidity, it corresponds to the physiological norm (~20.9%), the CO₂ concentration is at a level close to the background (~400 ppm), and the CO does not exceed the