Seasonal dynamics of airborne fungi in different caves of the Mogao Grottoes, Dunhuang, China

A study on the Mogao Caves reveals that visitor activity significantly influences airborne fungal concentrations and compositions. Researchers found higher levels of culturable fungi, particularly Cladosporium spp., Penicillium spp., Alternaria spp., and Aspergillus spp., in closed caves (CC) and outdoor areas (OD), with seasonal variations peaking in summer and autumn. Positive correlations were observed between fungal levels and temperature or visitor numbers, while negative correlations were noted with relative humidity and rainfall. This insight underscores the importance of considering human impact in conservation efforts for such heritage sites.

Wang, W., Ma, X., Ma, Y., Mao, L., Wu, F., Ma, X., An, L., & Feng, H. (2010). Seasonal dynamics of airborne fungi in different caves of the Mogao Grottoes, Dunhuang, China. International Biodeterioration & Biodegradation, 64(6), 461–466. https://doi.org/10.1016/j.ibiod.2010.05.005