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Fig. 5. Measured concentrations of bromide in the suction cups after 2 h, and 4, 8, and 16 d (the profile is the same as in Fig. 2). Injection continued until Day 3 as indicated by the half circle at the top of the graphs. The size of the big circles is proportional to the percentage of the input concentration measured at each cup. The dots indicate the suction cups. The local coordinate system uses the southeastern corner of the trench as the point of origin.
