|
|
| Type |
Poster Presentation |
| Area |
환경에너지 |
| Room No. |
포스터발표장 |
| Time |
4월 20일 (목요일) 11:00~12:30 |
| Code |
ENVR.P-491 |
| Subject |
16-year trend and Exposure Assessment of Polychlorinated Dibenzo-p-dioxins and Dibenzofurans (PCDD/Fs) in outdoor air and human serum in Seoul, Korea |
| Authors |
강유경, 장윤석*
POSTECH 환경공학부, Korea
|
| Abstract |
Polychlorinated dibenzo-p-dioxin/furans (PCDD/Fs) were measured in air and human serum samples collected, respectively, from residences and residents living within a 1 km radius of municipal solid waste incinerators (MSWIs) during a 16-year period from 2001 to 2016 in Seoul, Korea. The mean toxic equivalent (TEQ) concentrations of PCDD/Fs were 0.08 pg TEQ/m3 and 9.90 pg TEQ/g lipid, respectively. Air and serum samples exhibited similar profiles of PCDD/F congeners, and 2,3,4,7,8-PeCDF and 1,2,3,7,8-PeCDD were determined as major congeners. Air sampling was carried out in summer and winter, and the concentrations were 0.03 and 0.12 pg TEQ/m3, respectively. The levels of particle phase were detected about 5 times higher than those of gas phase, and it was also confirmed that the smaller particle size of the particles had the higher concentrations. The dioxin intake rate through respiration was 0.0066 pg TEQ/kg-day, which was lower than the reference value of 0.2 pg TEQ/kg day. The dioxin levels in air during a 16-year period showed a trend of about 95% reduction from 2001 when the dioxin emission regulation were strengthened. About 37% of participants’ serum dioxin levels were within the range of 8-10 pg TEQ/g lipid, and the serum dioxin levels for 16 years did not show any significant change. Dioxin levels showed strong positive associations with age, but no correlation with sex or BMI. In addition, diabetic patients had higher dioxin levels than normal people, but there was no statistically significant correlation. This study examined that the effects of dioxin emission sources on human exposure and the longest changes of dioxin in both air and serum in Korea. |
| E-mail |
ygkang74@postech.ac.kr |
|
119th General Meeting of the KCS