Research Article

Polycyclic Aromatic Hydrocarbons in Urban Stream Sediments

Figure 2

Observed mass distribution of analytes by sediment particle sizes. Notes: -axis is particle size range (μm), where 1 = <45; 2 = 45–90; 3 = 90–180; 4 = 180–355; 5 = 355–710; 6 = 710–1400; 7 = 1400–2800; 8 = >2800 (w/o LOM*); 9 = >2800 (LOM). *with large organic material removed. -axis weight in μg of analyte associated with particle fraction in 1 kg of total sediment.
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372395.fig.002b
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