The Survey of Fungal Contamination in the Air Flowing Out of Air Conditioners (Coolers) in a Car
Shima Parsay1, Seyed J. Hashemi1, 2, *, Mahmood A. Mohammadi3, Roshanak Daie-Ghazvini1, Zahra Rafat4, Heidar Bakhshi1, Robab Ebrahimi1
Identifiers and Pagination:Year: 2021
First Page: 581
Last Page: 585
Publisher Id: TOPHJ-14-581
Article History:Received Date: 16/3/2021
Revision Received Date: 20/8/2021
Acceptance Date: 21/9/2021
Electronic publication date: 31/12/2021
Collection year: 2021
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: (https://creativecommons.org/licenses/by/4.0/legalcode). This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Fungi are among the most important microorganisms in the air. The air conditioner (cooler) in a car can be an important reservoir for infectious agents, especially fungal species. The present study aimed to measure the fungal contamination in the air flowing out of air conditioners.
In this study 138 cars including 69 Iranian-made cars and 69 cars made by foreign companies were examined.
The plating technique was used. In this study, in each car, 2 plates were placed for 5 minutes when the air conditioner was on and also 2 plates were placed for 5 minutes when the air conditioner was off.
A total of 2442 colonies were isolated. The most common isolated fungi were Cladosporium spp. (25.55%), Penicillium spp. (6.14%) and Aspergillus niger (3.03%). The highest number of isolated fungal elements was observed in the Iranian-made cars during summer season (P-value<0.05). Furthermore, the growth rate of colonies on the plates placed on the front and rear seats of cars did not vary considerably (P-value > 0.05).
Air conditioners of Iranian-made cars can be an important source for fungal transmission to the human respiratory system that is important, especially in susceptible people to allergic diseases and patients with immunodeficiency.