Microbiological contamination of indoor air in university classrooms(Case study: University of Science - Vietnam National University,Ho Chi Minh city)

Abstract

In recent years, indoor air pollution has been of increasing interest to scientists as well as environmental management authorities as most people are indoors about 80-90% of their time [1, 2]. Hence, indoor air quality is of greater significance to human health due to the greater exposure time of indoor air than outdoor air. An average person inhales around 6-10 l/min and needs 15 m3 of air per day [3]; thus, it is critical that indoor air be studied and evaluated. According to research by the United States Environmental Protection Agency (USEPA), indoor air pollution is one of the top five public health risks [4] contributing to an increase in the likelihood of cardiovascular diseases, lung diseases, and respiratory diseases [5].