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\ p None B a = c @ = Z ?N*8 X" 1 Arial1 Arial1 Arial1 Arial1 Arial1 Arial1 Arial General ` Table_1 - Track A1 A2 A3 A4 A5 B1 B2 B3 B4 B5 C1 C2 C3 C4 C58 Oil in water (mg l−1) 23.66.2 15.712.2 1.61.1 0.30.2 0.10.1 12.91.9 4.40.4 7.313.8 0.80.3 0.30.4 14.81.3 2.40.8 0.60.8 0.10.0 Water temperature (C) 36.14.6 28.25.9 29.37.2 28.46.9 28.87.0 33.81.7 27.83.3 26.82.6 26.33.3 26.63.2 32.12.3 28.01.9 27.21.4 27.01.1 26.11.1N NH3− N (mg l−1) 3.20.6 1.10.4 0.30.1 0.20.0 0.20.1 3.10.5 1.10.2 0.40.5 2.30.3 1.00.52 P-PO43− (mg l–1) 0.40.2 0.50.4 0.60.2 0.40.1 0.60.1<