|
KMID : 0382420010270020145
|
|
Korean Journal of Environmental Health Society
2001 Volume.27 No. 2 p.145 ~ p.152
|
|
|
Decay Rate of the Nitrogen Dioxide in Indoor Residence Using Mass Balance Model
|
|
Yoo Seung-Jin
Jeong Mun-Ho
Yang Won-Ho
Bae Hyun-Joo
|
|
|
Abstract
|
|
|
The purpose of this study was to determine nitrogen dioxide (NO_2) decay rate by reaction between NO_2 and interior materials in Korean residence. The results of this research could be helpful to choose the interior construction materials and to study on reduction of indoor air pollutants. The results of this research are as follows;
For 30 residences in Seoul and Incheon from october 2000 to march 2001, the mean of infiltration rate was 0.70±.44 ACH, and single-detached houses (7 houses) and apartments (19 houses) were 0.97±0.55 ACH and 0.61±0.34 ACH, respectively. The CO_2 decay followed approximately first-order process (R^2=0.97±0.02). There existed a statistic significance in filtration rate between houses built in 1980´ s and built in 1990´ s by t-test (p<0.02). Mean of NO_2 decay rates in 26 residences except 4 residences was 0.94±0.49 hr^-1, and also 0.86±0.49 hr^-1, 0.97±0.50 hr^-1 in single-detached houses and apartments, respectively. Mean NO_2 decay rates in houses built in 1980´s and 1990´s were 0.78±0.37 hr^-1, 1.33±1.03hr^-1, respectively. Nothing were showed statistical significance among indoor temperature, indoor humidity, and NO_2 decay rate. However, NO_2 decay rates had a tendency to increase by increase of temperature and humidity. Average volume/surface of participated houses was 0.55±0.07m and mean NO_2 deposition velocity was calculated as 1.46±0.59 m sec^-1.
|
|
|
KEYWORD
|
|
|
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|
|