Table 2. Biota-Sediment Accumulation Factor (BSAF) Values in Control (Unamended), Biochar, Powdered Activated Carbon (PAC), and Granular Activated Carbon (GAC) Amended Palos Verde Shelf Superfund Site Sediment at Different Sampling Times.

	Day	o,p′-DDE	p,p′-DDE	o,p′-DDD	p,p′-DDD
Control	180	0.005 ± 0.0003	0.007 ± 0.0005	0.004 ± 0.0004	0.004 ± 0.002
	365	0.009 ± 0.001	0.011 ± 0.003	0.010 ± 0.002	0.013 ± 0.004
Biochar	180	0.005 ± 0.0003	0.007 ± 0.0006	0.003 ± 0.0003	0.007 ± 0.0008
	365	0.004 ± 0.0004	0.007 ± 0.0007	0.0001 ± 0.0003	0.003 ± 0.0005
PAC	180	0.004 ± 0.0002	0.005 ± 0.0004	0.0004 ± 0.0007	0.003 ± 0.0002
	365	0.002 ± 0.0003	0.004 ± 0.0005	0	0.001 ± 0.0003
GAC	180	0.016 ± 0.004	0.024 ± 0.006	0.012 ± 0.004	0.018 ± 0.004
	365	0.005 ± 0.0003	0.010 ± 0.0009	0.006 ± 0.001	0.010 ± 0.002