Estimation of Transport and the Mass Balance of a Molecular Marker (DSBP) in Tokyo Bay Using an Ecological Model

Abstract

A three-dimensional ecological model (EMT-3D) was applied to Tokyo Bay to simulate 4,4'-bis (2-sulfostyryl)biphenyl (DSBP). The simulated results were in good agreement with the observed values, with a correlation coefficient of R=0.8431 and a coefficient of determination of R 2 =0.7108. The sensitivity analysis indicated that the photolysis rate is the most important factor. Therefore, the parameters must be considered carefully in modeling. The mass balance results showed that the standing stock of DSBP in water and in particulate organic carbon was 621.2 and 19.5 kg, respectively, and the effluent flux to the open sea was 2.63 and 0.055 kg/day, respectively. , 1983; Brown and Wade, 1984; Ferna´ndez et al., 1991;Takada and Eganhouse, 1998).