| Development and Assessment of a Dynamic Fate and Transport Model
for Lead in Multi-media Environment |
| Yeon Jeong Ha, and Dong Soo Lee† |
| Environmental Planning Institute, Graduate School of Environmental Studies, Seoul National University, South Korea |
Corresponding Author:
Dong Soo Lee ,Tel: +82-2-880-8522, Fax: +82-2-871-8847, Email: leeds@snu.ac.kr
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Received: November 11, 2008; Accepted: January 13, 2009. |
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| ABSTRACT |
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The main objective was to develop and assess a dynamic fate and transport model for lead in air, soil, sediment, water and vegetation. Daejeon
was chosen as the study area for its relatively high contamination and emission levels. The model was assessed by comparing model predictions
with measured concentrations in multi-media and atmospheric deposition flux. Given a lead concentration in air, the model could predict the concentrations
in water and soil within a factor of five. Sensitivity analysis indicated that effective compartment volumes, rain intensity, scavenging
ratio, run off, and foliar uptake were critical to accurate model prediction. Important implications include that restriction of air emission may be
necessary in the future to protect the soil quality objective as the contamination level in soil is predicted to steadily increase at the present emission
level and that direct discharge of lead into the water body was insignificant as compared to atmospheric deposition fluxes. The results strongly
indicated that atmospheric emission governs the quality of the whole environment. Use of the model developed in this study would provide quantitative
and integrated understanding of the cross-media characteristics and assessment of the relationships of the contamination levels among the
multi-media environment. |
| Keywords:
Multi-media | Fate and transport | Model | Lead |
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