Time series of source and fate fluxes of dissolved PCBs in the seawater. (IMAGE)

Ehime University

Time series of source and fate fluxes of dissolved PCBs in the seawater.

Caption

Time series of source and fate fluxes of dissolved (a) CB28, (b) CB101, (c) CB153, and (d) CB180 in the seawater. Fluxes are calculated by integrating the whole space of the Sea of Japan. The air–sea exchange flux is represented by the red solid line, with a scale shown on left axis. The biological fluxes are represented by the dashed lines including phytoplankton adsorption (brown), detritus adsorption (green), and detritus remineralization (purple), with a scale shown on the right axis. The net flux of dissolved PCBs is represented by the solid black line, with a scale shown on the left axis. The self-degradation flux of dissolved PCBs is represented by the dashed cyan line, with a scale shown on the right axis. Positive fluxes are defined to increase the dissolved PCBs concentration in the seawater. “PHY” denotes phytoplankton; “DET” denotes detritus.

Credit

Xinyu Guo, Ehime University

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