Spatial and Temporal Distribution and Air Quality Evaluation of the Indoor Air Microorganisms in Summer Campus

Abstract:

The campus indoor environment is an important learning and living environment for college students, and it is closely related to the health of college students. Using natural sedimentation to monitor and evaluate the indoor air microorganisms of four classrooms (0407, 0408, 0409 and 0410) which are in the Inner Mongolia University campus comprehensive building of fourth floor. The results show that the concentration variation of indoor air microorganisms is different in one day, in the 5 periods of time from morning to night, the maximum is 2.0×10³ cfu·m^-3 in the morning, which is 12 times to the minimum. Air microbial content of the sunny classrooms (0407 and 0409) is obviously higher than night side classrooms (0408 and 0410), the total bacteria concentration of classroom 0407 is 2.1 times to classroom 0408, and the concentration of classroom 0409 is 1.5 times to classroom 0410. Among the 4 sampling points, the highest total concentration of air microorganisms is 8.0×10² cfu·m^-3, the lowest value is 3.0×10² cfu·m^-3, and the average value is 6.0×10² cfu·m^-3. Bacteria as the main air microorganism in summer campus classroom, accounted 77.4%, mold accounted18.9%, actinomycetes accounted 3.7%. According to the air microorganism standards, it evaluates that each time of indoor air is clean.

• Periodical: Advanced Materials Research (Volumes 726-731)
• Pages: 1373-1377
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.726-731.1373
• Online since: August 2013
• Authors: Ji Fei Xu, Xin Ying Wang, Hui Min, Hong Yu Ma, Ji Zhao
• Keywords: Air Microorganisms, Campus, Quality Evaluation, Spatial Distribution, Temporal Distribution

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