Open AccessStudy of Air Quality in the Office Building
Author(s) -
Вера Агафонова
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/753/4/042004
Subject(s) - carbon dioxide , ventilation (architecture) , indoor air quality , air quality index , human health , air change , environmental science , environmental engineering , waste management , engineering , mechanical engineering , meteorology , environmental health , medicine , chemistry , geography , organic chemistry
This paper is devoted to assessment of air quality in an office space of a public building. Analysis of the results of researches made in this area by Russian and foreign authors showed that state of human health deteriorates at CO 2 concentration level of 600-800 ppm and more and this can lead to decrease in performance and increased fatigue of office workers. Long-term human exposure to carbon dioxide can lead to chronic diseases. Results of experimental study of changes in carbon dioxide concentration in 30 m 2 office space of a public building when 5 people are continually present in the office are given in this paper. CO 2 concentration measurement was carried out during 24 hour period using MT 8057 portable carbon dioxide detector. According to the measurements results, a graph of CO 2 concentration changes versus time was drawn. Conclusion that, in some periods of working day, air quality was unsatisfactory (from 10:40 to 13:30 and from 14:45 to 19:00: CO 2 concentration exceeded 1000 ppm) indicates insufficiency of existing ventilation system and excessive room sealing (due to application of plastic windows). There is a need in technical solutions to improve efficiency of supply and exhaust ventilation.