Lead Speciation and Bioavailability in Apatite-Amended Sediments

Table 4

Hyalella azteca survival and growth and Lumbriculus variegatus bioaccumulation data for Chopawamsic Creek sediment postamendment experimental plots.

Sample	Hyalella azteca survival and growth						Lumbriculus variegates bioaccumulation
	Percent survival			Dry weight (mg)			Wet weight (μg g^−1)
	Median	Mean	Std Dev	Median	Mean	Std Dev	Median	Mean	Std Dev
Lab Control	90	83.3	18.3	0.34	0.33	0.07	0.071	0.071	0.01
Plot A	100	95.8	9.0	0.71	0.71	0.10	0.226	0.230	0.04
Plot B	100	91.7	11.9	0.66	0.63	0.12	0.266	0.260	0.04
Plot C	100	95.0	6.7	0.61	0.63	0.11	3.00	3.40	0.82
Plot D	100	94.2	7.9	0.50	0.53	0.13	5.16	5.46	1.23
Plot E	95	91.7	10.3	0.69	0.66	0.17	1.69	1.84	0.67