Arsenic Transfer from As-Rich Sediments to River Water in the Presence of Biofilms

Table 3

As mobilized in various extractants and time-averaged bioavailable concentration in DGT devices (). Percentages in brackets represent the As mobilized with respect to the total As in sediments.

Sample	Water soluble As	Exchangeable As	Specifically sorbed As	TCLP As
	(µg g^−1)				(µg L^−1)
C	0.051 (0.05%)	0.18 (0.17%)	1.39 (1.31%)	0.28 (0.26%)	2.25
B	0.045 (0.04%)	0.13 (0.12%)	2.58 (2.43%)	0.11 (0.10%)	1.44