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Volatile organic compounds in coastal seawater 99<br />

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Fig. 3. Temporal variations at CD (March-August 1977).<br />

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A. MARSH LOW TIDE (7/2t177)<br />

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. TEMP(OC) 20 20 50 80 110 140<br />

Fig. 4. Gas chromatograms showing VC found in marsh waters. Peak Nos. 100, 300, and 400 are internal standards<br />

added to the seawater sainple at 10 ng!kg, while peak No. 200 is the internal standard applied to the trap at the<br />

time of extraction. For peak number identifications refer to Table 2.<br />

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