Abstract
Polychlorinated dibenzo-p-dioxins(PCDDs), dibenzofurans(PCDFs), and biphenyls(PCBs) were analyzed by HRGC/HRMS in human blood samples from the Siwha industrial area in Korea. The PCDD/F and PCB concentrations in workers were higher than those in residents. The average TEQ concentrations of PCDD/Fs in workers and residents were 40.3 pg I-TEQs/g lipid and 16.6 pg I-TEQs/g lipid, respectively, and the total PCB concentrations were 174.1 ng/g lipid and 151.0 ng/g lipid, respectively. When applied to principal component analysis, the PCDD/F congener distributions of workers were differentiated from those of residents. But, all of them were similar to the distribution in several Korean foods. Estimated daily intake(EDI) of each person was calculated, and then only 40% to the total people were within the tolerable daily intake range(1-4pg I-TEQ/kg bw/day) suggested by WHO(1997).
고분해능 가스크로마토그래프/고분해능 질량분석기를 이용하여 시화공단 지역 근로자와 일반주민의 혈액에서 다이옥신류를 분석하였다. 평균 다이옥신류의 농도는 근로자가 일반주민보다 높았다. 근로자와 일반주민의 평균 다이옥신 TEQ 농도는 각각 40.3 pg I-TEQ/g lipid, 16.6 pg I-TEQ/g lipid였고, 전체 PCBs 농도는 각각 174.1 ng/g lipid, 151.0 ng/g lipid였다. 주성분분석을 한 결과, 근로자와 일반주민의 다이옥신 이성질체 분포는 구별되었지만, 모두 식품류에서의 분포와 유사하였다. 각 개인의 일일 다이옥신 섭취량을 계산했을 때 40%만이 WHO에서 제시한 1-4 pg I-TEQs/kg bw/day의 허용범주를 만족하였다.
