Akademik Veri Yönetim Sistemi
20th International Symposium on Environmental Pollution and its Impact on Life in the Mediterranean Region, Athens, Yunanistan, 26 - 27 Ekim 2020, cilt.1, sa.1, ss.90, (Özet Bildiri)
The concentration and distribution characteristics of culturable airborne fungi (CAF) were investigated in indoor air for four public transport modes (bus, subway, metrobus, and ferry) in Istanbul. Samples were taken from indoor air at each station in all modes for two times a month during a year. The culturable airborne fungi (CAF) concentration was determined with “Impinger Sampling Method” and for this purpose AES Sampl’air (Aes Laboratoire Sampl’air Lite-France) Air Sampler Device was used with Potato Dextrose Agar (Merck 1.10130).
As results, the concentration of CAF ranged from 1 to 740 CFU/m³ in the bus, 1 to 640 CFU/m³ in the subway, 1 to 540 CFU/m³ in the metrobus, and 1 to 360 CFU/m³ in ferry. Also, fourteen genera of fungi were isolated in all sampled transport environments. Most abundant fungi genus identified were Penicillium, Aspergillus, and Paecilomyces, respectively. The predominant genera identified in indoor air were Penicillium spp. (77,69% of total CAF) and Paecilomyces spp. (15,03% of total CAF) Aspergillus spp. (3,02 % of total CAF), respectively. In bus, %34,04 of isolated CAF, was highest during spring and was lowest during winter with %8,51. Metrobus and subway modes had highest CAF in autumn with %35,48 and %36,36 respectively. But Ferry mode had highest CAF percentage during summer with %47,05.
Results showed that CAF concentrations at bus were higher than the other vehicles indoor air, and fungal levels significantly correlated with the number of passengers (p\0.05; r = 0.68) and RH % (p\0.05; r = 0.43). The highest and lowest CAF concentration was observed in bus and ferry, respectively.