논문 상세보기
pp.453-462
This study was conducted to evaluate the level of atmospheric heavy metals and the relationship of that concentration with weather conditions. This research monitored the concentration of Total Suspended Particulates (TSP) at every three hours by using High Volume Air Sampler from December 24th, of 1995 to Febuary 20th, 1996 in Kimhae area, which recently became a rapidly growing residential and industrial sitc.
The items such as air-temperature, relative humidity, radition, wind speed, and wind direction were monitored by using Atmospheric Weather System at the same time. From the collected TSP, the concentration of heavy metals were analyzed by using the Atomic Absorption Spcetrophotometry.
The mean concentration of TSP was 110.4 ㎍/㎥, and the mean concentration of lead (Pb), copper (Cu), chromium (Cr), manganese (Mn), cadmium (Cd), were 0.837 ㎍/㎥, 0.486 ㎍/㎥, 0.264 ㎍/㎥, 0.157 ㎍/㎥, 0.054 ㎍/㎥, respectively. Regarding daily variations, the concentration of TSP was highest in the morning (158.1 ㎍/㎥) followed by evening (119.4 ㎍/㎥) and afternoon (111.1 ㎍/㎥). The concentration of Pb and Mn was higher in the morning, and that of Cu, Cr and Cd was higher in the afternoon and the evening. Regarding the relationship between the concentration of pollutants and weather condition, the concentration TSP revealed positive correlation with temperature, humidity, wind speed, but negative correlation with radition (p<0.01). The concentration of Mn revealed positive correlation with temperature and humidity, but negative correlation with wind speed (p<0.01). And the the concentration of pollutants and weather condition revealed higher correlation within the same time period.
In summary, the paralleled mornitoring of air conditions and weather condition should be recommended to get the correct informations concerning the pollution and to prevent the deterioration of air conditions.
