Spatio-temporal Changes of Sediment Environment in the Taehwa River Estuary, Ulsan of Korea.

ABSTRACT Sim B.-R.; Kim H.C.; Kim C.-S.; Hwang D.-W.; Park J.-H.; Cho Y.-S.; Hong S., and Lee W.-C., 2018. Spatio-temporal changes of sediment environment in the Taehwa river estuary, Ulsan of Korea. In: Shim, J.-S.; Chun, I., and Lim, H.S. (eds.), Proceedings from the International Coastal Symposium (ICS) 2018 (Busan, Republic of Korea). Journal of Coastal Research, Special Issue No. 85, pp. 41–45. Coconut Creek (Florida), ISSN 0749-0208. The Taehwa River is a successful case for restoration of ecological system in Korea through the restoration project conducted during 1995–2005. To sustain this restored ecosystem, seasonal surveys for surface sediment quality were conducted in the entire area of the river estuary during the year 2012. It is noteworthy that the areas with pollutant source inflow exhibited higher organic carbon and acid volatile sulphide concentrations than the pollutant standard indices (20 mg C·g−1 and 0.2 mg S·g−1) in the spring and summer. Trace metal concentrations (As: 13.2; Cu: 64....