Analysis of carbon monoxide concentration in the atmosphere of towns in the Moldova-Romania region
Author(s):
Alina NISTOR2,3,4, Bogdan NISTOR3,5, Dumitru MIHĂILĂ1,2,3, Petruț–Ionel BISTRICEAN1,3
1 Faculty of History, Geography and Social Sciences, Department of Geography, „Stefan cel Mare“ University of Suceava, Romania 2 Doctoral School of Applied Sciences and Engineering, Doctoral Field of Geography 3 Center for Applied Geography Research (GeA) 4 Gymnasium School Ion Creangă Suceava, 1 December 1918 Boulevard, 720262 Suceava, Romania 5 Gymnasium School No. 4 Suceava, 10 Zorilor Street, 720237 Suceava, Romania
Between 2009 and 2022, at 21 stations in Moldova, the average annual values of carbon monoxide concentration were reduced (0.07–0.62 mg/m³). In winter, carbon monoxide concentrations were higher (0.14–0.91 mg/m³), while in summer they were lower (0.04–0.45 mg/m³). The maximum daily value of carbon monoxide emissions into the atmosphere (7.5 mg/m³ – SV-2 / 21.12.2009) was determined during the cold season and was the result of incomplete combustion of fossil fuels in household appliances, road traffic, weather conditions, and the configuration of the relief, which favored the accumulation of this gas. The limit values according to Law No. 104/June 15, 2011 (10 mg/m3) were not exceeded and the health of the population was not endangered. The monthly, daily, and hourly average values of carbon monoxide fell within the specific quality indices of excellent and average throughout the entire study period. Monitoring the atmospheric concentration of carbon monoxide remains essential for air quality surveillance and the management of potential pollution episodes.
