JEQ -- Hur and Schlautman 33 (5): 1733 Figure IG4

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Fig. 4. Comparison of pyrene K_oc values at pH 4 and 0.1 M NaCl for dissolved and mineral-bound humic substances (HS): (a) different HS and (b) purified Aldrich humic acid (PAHA) ultrafiltration (UF) fractions. Dissolved HS data are from Hur and Schlautman (2003a).