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| Correlation among Unintentionally-produced Persistent Organic Pollutants Emitted from Stationary Thermal Sources |
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Sam-Cwan Kim1, Seung-Ryul Hwang1, Jong-Woo Choi1, Geum-Ju Song2 |
1National Institute of Environmental Research
2Institute of Environment & Energy Technology |
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| Abstract |
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A total of 8 stationary emission sources, including incineration plants and sintering and smelting furnaces
in ferrous and non-ferrous metal industry were selected to evaluate the levels of unintentionally-produced persistent
organic pollutants (UPOPs) emission. Using the same sampling method for polychlorinated dibenzo-pdioxins/
polychlorinated dibenzofuran (PCDDs/PCDFs), gas samples were collected and UPOPs were separated
from the gas samples and quantified. UPOPs concentration of gas emitted from sintering furnaces in ferrous
metal industry was the highest among the investigated emission sources. PCDDs/PCDFs and co-planar polychlorinated
biphenyls (PCBs) as a whole were estimated to be about 9% and 7% of hexachlorobenzene (HCB)
concentration, respectively. Good correlations of R2 = 0.89 to 0.93 were observed among PCDDs/PCDFs (ng/
Nm3 and ng-TEQ/Nm3), co-planar PCBs (ng/Nm3 and ng World Health Organization-TEQ/Nm3) and HCB
(ng/Nm3). HCB, which can be more simply measured by a gas chromatograph than PCDDs/PCDFs or co-planar
PCBs, could be used as an indicator for the emission level of PCDDs/PCDFs and co-planar PCBs. |
| Key Words:
UPOPs, PCDDs/PCDFs, HCB, Stationary sources |
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