| Keywords |
Volatile organic compounds ; Formaldehyde ; Indoor air quality ; Relative humidity |
| Abstract |
VOCs concentration in 36 households distributed in six cities in Korea were measured from July 2005through January 2006. Environmentally sound finishing materials were used in every household based on the regulationsof Korea Air Cleaning Association (K.A.C.A). Toluene concentration showed the average value of 1,475μg/m3, and2,711μg/m3 in winter under the same finishing material conditions. However, the concentration of benzene, ethylben-zene, styrene, xylene and formaldehyde showed 9.9, 628, 232, 2,392, and 951μg/m3 respectively in summer and 1.4,11.4, 8.8, 29, and 216μg/m3 respectively in winter, which is lower than those in summer. In this study indoor VOCsconcentration at each season were assessed by taking into account humidity. The concentration of benzene, ethylbenzene,styrene, xylene, and formaldehyde turned out to increase as the humidity increase. |