Fig. 1. Changes in the annual concentrations of fungal spores in Seoul (blue) and Guri (red), Korea over a period of 25 years. The total annual atmospheric fungal concentrations decreased in both areas. (A) The total fungal concentrations in Seoul were 43,273 and 10,124 spore/m3 in 1998 and 2022, respectively, whereas the total fungal concentrations in Guri were 73,199 and 16,514 spore/m3 in 1998 and 2022, respectively, marked decreases in total outdoor fungi concentration. (B) The concentrations of Alternaria were 2,237 and 1,022 spore/m3 in Seoul in 1998 and 2022, respectively, whereas the concentrations in Guri were 6,053 and 577 spore/m3, respectively. (C) Cladosporium concentrations in Seoul were 31,324 and 6,661 spore/m3 in 1998 and 2022, respectively, whereas they were 53,735 and 10,609 spore/m3 in Guri, respectively.
