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Bulk Humin - CLU-IN

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Changes to OM Composition<br />

Characterization of Gasoline Distillate Waste<br />

Non- Phragmites<br />

Vegetated Mixed Grass<br />

<strong>Bulk</strong> Sediment<br />

%TOC 21 + 1.9 27 + 0.4<br />

14C PMC 2.0 + 0.1 24 + 0.16<br />

<strong>Bulk</strong> <strong>Humin</strong><br />

%TOC 7.5 + 0.2 13 + 0.1<br />

14C PMC 6.1 + 0.1 44 + 0.3<br />

HF/HCl <strong>Humin</strong><br />

%TOC 10 + 1.8 28 + 1.0<br />

14C PMC 2.1 + 0.1 33 + 0.2<br />

14 C abundance increases for Labile and<br />

Refractory OM fractions; <strong>Humin</strong> has more…<br />

Sediment (n=4)<br />

Trees, shrubs<br />

Phrag/<br />

Grasses<br />

Phrag/Colonization<br />

No vegetation<br />

Plant Carbon<br />

Phragmites δ 13 C<br />

PAH<br />

-27.50 -27.00 -26.50 -26.00 -25.50 -25.00 -24.50<br />

δ 13 C<br />

<strong>Bulk</strong> Sediment<br />

<strong>Bulk</strong> <strong>Bulk</strong> <strong>Humin</strong><br />

<strong>Humin</strong><br />

HF <strong>Humin</strong>

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