Open AccessINVESTIGATION OF THE OZONE POLLUTION LEVEL IN SOME PHOTOCOPY ENTERPRISES AND METHOD OF TREATMENT
Author(s) -
Hien Thi To,
Hanh Thuy Lai
Publication year - 2011
Publication title -
khoa học công nghệ
Language(s) - English
Resource type - Journals
ISSN - 1859-0128
DOI - 10.32508/stdj.v14i4.2040
Subject(s) - ozone , pollution , absorption (acoustics) , environmental science , ho chi minh , environmental engineering , air pollution , environmental chemistry , chemistry , geography , materials science , ecology , biology , cartography , organic chemistry , scale (ratio) , composite material
This study measured the ozone pollution level in 4 photocopy shops in Ho Chi Minh City during 2 months, from March to April 2010. The result indicated that ozone concentration increases rapidly when the photocopiers start. The highest concentration of ozone is seemed to be from 11h30 to 16h30 every day. The concentration at the entrance is lower than at the center of the photocopy enterprise. Besides, this study also evaluated the ozone absorption rates of Epipremnum Aureum plant by a hermetic model. The result showed that the absorption rates increase by time, reach to 78.9% after 3 days. Consequently, we can use this plant to reduce the high ozone concentration in the photocopy shops.