A simultaneous control technology for nitrogen dioxide and toluene in indoor areas

摘要

Energy consumption has increased drastically as national industrialization has rapidly accelerated. These circumstances have led to greater air pollution problems with air pollution in Korea. In order to address this issue, the Department of the Environment has employed various kinds of policies to improve the ambient air quality of the Seoul metropolitan areas. However, these measures have not improved the ambient air quality in this region as much as had been expected (Sohn et a l, 2008). Indoor air quality has significantly affected by the air quality outdoors. For example, the air quality within the Seoul Metro Subway is of great concern, since it is located near automobile roads, so subway air environment is of concern. This subway system is also approximately 25 years old, and contains a deteriorating infrastructure which may further contribute to the accumulation of indoor air pollutants (Kim et a l, 2007).