Figure 3: Extracted ion chromatograms of the activated carbon strip at time = 0, m/z 57.0,
91.0, 105.0, 134.0, 142.0. A = outside, B = living room, C = doorway, D = kitchen.

Figure 3 is four separate line graphs, labeled A, B, C, and D, showing a narrow spike near the beginning reference point of 1.7 minutes, a higher spike at approximately 2.4 minutes, two smaller areas after 5 minutes and 6 minutes, with a gradual decay to relatively nothing.

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