Polycyclic Aromatic Hydrocarbons in Urban Stream Sediments

Table 4

Thermal chromatography sediment volatile organic content and COD analysis results.

Size range (μm)	% Volatile organic content	SCOD; (mg/kg dry sediment)
<45	1.1	74,000
45–90	1.45	54,000
90–180	0.49	23,000
180–355	0.45	18,000
355–710	0.8	38,000
710–1400	3.54	99,000
1400–2800	6.39	110,000
>2800 (w/o LOM*)	6.51	95,000
>2800 LOM	37.98	1,500,000

*With large organic material removed.