title: Actual measurement, hygrothermal response experiment and growth prediction analysis of microbial contamination of central air conditioning system in Dalian, China.
abstract: The microbial contamination of central air conditioning system is one of the important factors that affect the indoor air quality. Actual measurement and analysis were carried out on microbial contamination in central air conditioning system at a venue in Dalian, China. Illumina miseq method was used and three fungal samples of two units were analysed by high throughput sequencing. Results showed that the predominant fungus in air conditioning unit A and B were Candida spp. and Cladosporium spp., and two fungus were further used in the hygrothermal response experiment. Based on the data of Cladosporium in hygrothermal response experiment, this paper used the logistic equation and the Gompertz equation to fit the growth predictive model of Cladosporium genera in different temperature and relative humidity conditions, and the square root model was fitted based on the two environmental factors. In addition, the models were carried on the analysis to verify the accuracy and feasibility of the established model equation.
authors.affiliation: School of Civil Engineering, Dalian University of Technology, Dalian, China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Lv
authors.affiliation: School of Civil Engineering, Dalian University of Technology, Dalian, China.
authors.forename: Guangyao
authors.initials: G
authors.lastname: Hu
authors.affiliation: School of Civil Engineering, Dalian University of Technology, Dalian, China.
authors.forename: Chunyang
authors.initials: C
authors.lastname: Wang
authors.affiliation: School of Life Science and Biotechnology, Dalian University of Technology, Dalian, China.
authors.forename: Wenjie
authors.initials: W
authors.lastname: Yuan
authors.affiliation: School of Civil Engineering, Dalian University of Technology, Dalian, China.
authors.forename: Shanshan
authors.initials: S
authors.lastname: Wei
authors.affiliation: School of Life Science and Biotechnology, Dalian University of Technology, Dalian, China.
authors.forename: Jiaoqi
authors.initials: J
authors.lastname: Gao
authors.affiliation: China Academy of Building Research, Beijing, China.
authors.forename: Boyuan
authors.initials: B
authors.lastname: Wang
authors.affiliation: Department of Biomedical and Chemical Engineering, Syracuse University, Syracuse, United States.
authors.forename: Fangchao
authors.initials: F
authors.lastname: Song
mesh_terms: D000389:Air Conditioning; D000391:Air Microbiology; D002175:Candida / Q000145:classification / Q000302:isolation & purification; D002681:China; D002963:Cladosporium / Q000145:classification / Q000302:isolation & purification; D006813:Humidity