The start of the Thessaloniki Metro Basics and the traffic of electric buses contributed decisively to Reduction of air pollutants in Thessaloniki While the launch of Flyover’s work did not cause any particular problems, especially after the police traffic measures were taken.

The above conclusions come from the comparative data on the evolution of basic gaseous pollutants in the city’s atmosphere (PM10 suspended particles, nitrogen dioxide No2), for the period December 2022 – February 2025, as recorded at the National Metrics Stations. Macedonia was presented by the Vice -Mayor of Thessaloniki, Costas Youtika, at the meeting of the Metropolitan Committee of Thessaloniki.

Mr Yutikas analyzed the last three years data from the measuring stations in Hagia Sophia (Center), Kalamaria (east) and Kordelio (west), explaining that the suspended particles PM10 are derived from the burning of solid fuel and the burning of solid fuels.

“According to comparative data, the completion of the subway projects and the modernization of public transport, which we have been demanding in the last five years, contribute drastically to the restriction, not to eliminate, the high concentrations Years, ”the Vice -Mayor said.

As part of the better evaluation of the data, Mr Yutikas recalled that Flyover’s construction work began in mid -2023, while the subway has been operating since the end of November 2024.

Analyzing in particular the numbers in December 2022, from Hagia Sophia stationFor nitrogen dioxide, nearly 48 micrograms per cubic meter were recorded, exceeding the average permitted term of 40mg, while at the start of Flyover it appeared a “launch” of nitrogen dioxide in the center at 60mg, as traffic was observed in the city. On the contrary, in January and February 2024 and 2025 and with the police action measures from the Traffic Police in Hagia Sophia, “it has now come very close to the annual limit of 40 micrograms. That is, there is initially a rise in prices that are reduced below, and the levels of measurement of 2025 are much better than 2022, ”said Yutikas.

Comparing the suspended particles for the same three years, the Vice -Mayor commented that For the first time in February 2025, the fewer overruns of the average daily which are 50mg were recorded.

The Kalamaria measurement station for nitrogen dioxide shows that “there are no serious fluctuations, generally moving below the 40mg threshold, while the area was not directly affected by Flyover, Metro and Electric Buses. It was indirectly affected because with the start of the construction of the inner peripheral there was increased movement in Kalamaria to the center and upside down. ” In addition, the suspended particles in the region of eastern Thessaloniki is a reduced trend.

As for the Kordeli area, he said in western Thessaloniki: “There are no serious fluctuations in the nitrogen dioxide area. There was increased traffic in Evosmos and Kordelio to East Thessaloniki, mainly because many IX users. They used the urban fabric and not the peripheral, ”Mr Yutikas analyzed, adding that a downward trend is also recorded in the suspended particles, which is below the 50mg threshold.

“With the presentation of data and data, we have seen the impact of Flyover’s works, the impact of the projects completed, such as the subway and electric vehicles, and we will continue to observe the evolution of nine modern gas stations we have at our disposal. Also, from the website of the Region of Central Macedonia, citizens can monitor the evolution of the phenomenon as a daily newsletter comes out for air pollutants and a prognosis of the next few days, “Mr Yutikas added.