干旱区生态环境知识资源中心(Arid): Characterizing bioaerosols in PM2.5 in a semi-arid region experiencing desert dust events

Arid

DOI	10.3389/fenvs.2023.1307426
	Characterizing bioaerosols in PM2.5 in a semi-arid region experiencing desert dust events
	Karimi, Hossein; Nikaeen, Mahnaz; Shamsizadeh, Zahra; Hajizadeh, Yaghoub
通讯作者	Nikaeen, M
来源期刊	FRONTIERS IN ENVIRONMENTAL SCIENCE
EISSN	2296-665X
出版年	2024
卷号	11
英文摘要	Introduction: Fine particulate matter (PM2.5) pollution is a global public health concern, particularly in arid and semi-arid regions that experience dust events. Exposure to PM2.5 has been associated with various short- and long-term health effects, which can be attributed to the composition of the fine particles. This study aimed to assess the concentration of bacteria and fungi in PM2.5 in the air of Isfahan, Iran which experiences air pollution. Methods: A total of thirty-nine PM2.5 samples were collected over 1 year. Bacterial and fungal concentrations associated with PM2.5 were measured using both culture-based method and real-time polymerase chain reaction (PCR). Results: The average concentration of PM2.5 was found to be 56 mu g m(-3), with many samples exceeding the recommended limit of 15 mu g m(-3) set by the World Health Organization for PM2.5 in ambient air. The mean culturable bacterial and fungal concentrations were 39 and 4 CFU m(-3), respectively which showed a significant difference compared to the results obtained through real-time PCR. No significant correlation was found between the levels of bacterial and fungal cells and PM2.5 concentrations. The dominant phyla found in PM2.5 were Firmicutes and Actinobacteria, while Proteobacteria as Gram-negative bacteria were rarely detected. Discussion: The findings suggest that the climate conditions in Isfahan, characterized by its semi-arid nature with low humidity content, influences the activity and viability of microbial populations, resulting in low concentrations of bioaerosols in PM2.5. Furthermore, it seems that desert dust events do not contribute to increasing the potential health risks associated with bacterial and fungal bioaerosols in PM2.5.
英文关键词	air pollution fine particles bioaerosols real-time PCR dust events health effect
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001152212400001
WOS关键词	PARTICULATE MATTER ; AIRBORNE BACTERIA ; MICROBIAL COMMUNITIES ; CULTURABLE BACTERIA ; SEASONAL-VARIATION ; QUANTITATIVE PCR ; AIR ; CITY ; MICROORGANISMS ; PROFILE
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403825
推荐引用方式 GB/T 7714	Karimi, Hossein,Nikaeen, Mahnaz,Shamsizadeh, Zahra,et al. Characterizing bioaerosols in PM2.5 in a semi-arid region experiencing desert dust events[J],2024,11.
APA	Karimi, Hossein,Nikaeen, Mahnaz,Shamsizadeh, Zahra,&Hajizadeh, Yaghoub.(2024).Characterizing bioaerosols in PM2.5 in a semi-arid region experiencing desert dust events.FRONTIERS IN ENVIRONMENTAL SCIENCE,11.
MLA	Karimi, Hossein,et al."Characterizing bioaerosols in PM2.5 in a semi-arid region experiencing desert dust events".FRONTIERS IN ENVIRONMENTAL SCIENCE 11(2024).