Abstract
In this study, the long-term variability of air quality in eastern Jeollanam-do was evaluated by using the observed data of air pollutants(CO, SO<sub>2</sub>, NO<sub>2</sub>, O<sub>3</sub>, PM<sub>10</sub>) and heavy metals(Pb, Cd, Cr, Cu, Mn, Fe, Ni) during the year of 2000 to 2019. The annual and seasonal variability was analyzed by anomaly analysis compared to the average concentrations(normal values). As a result, the anomaly variability tended to decrease for the most of air pollutants and heavy metals. The decreasing trends of the long-term variability might be affected by the environmental policies for emission controls and clean & low-sulfur fuel use. However, the increasing trend of anomaly variability was shown in the case of O<sub>3</sub> concentrations. Also, the insignificant decreasing trends of anomaly variability were represented for the some of the atmospheric heavy metals. Therefore, it was indicated that the continuous efforts should be required to improve air quality in eastern Jeollanam-do. In addition, the spatially sufficient observations should be necessary for the management of regional air quality by the eastern/western/central regions in Jeollanam-do.
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