Characteristics of Heavy Metal Pollution in the Atmosphere in Residential Area near the Gwangyang Industrial Complex

Abstract

The purpose of this study is to investigate the distribution of heavy metal concentrations in embient of residential areas near Gwangyang Industrial Complex. The heavy metal measuring points were selected as Taein-dong, Geumho-dong and Myododong. Sampling was carried out for 7 days in each season by sampling for 24 hours from 10 AM to 10 AM the next day at all measurement points during the four seasons. The analysis of this study showed that most heavy metals are within the permissible levels. In addition, there was no difference in seasonal fluctuation according to heavy metal components, indicating that all of the survey points in this study were in the same area of influence due to seasonal wind direction. The average enrichment factor of Cd, Cr, Ni, Pb and Zn is over 10, which can be evaluated as a heavy metal component with high pollution level by artificial sources. The results of evaluating the pollution index using domestic and foreign air quality standards exceed 14.3%, and the average of the pollution index was 0.61 to 0.62. These results showed that the level of heavy metal pollution in the residential area was not high. However, the heavy metal contamination effect caused by anthropogenic sources suggests that continuous monitoring is necessary from the acceptor's point of view.