Table 2.

Effect of treatment on estimated RBA for Pb in soils spiked with Pb minerals^*

Mineral	Treatment	Bone			Blood			Point
		Mean	LCL	UCL	Mean	LCL	UCL	Mean	LCL	UCL
PbCO3	U	0.929	(0.763	1.141	0.869	0.743	1.023	0.899	0.792	1.005
	T	0.024	0.003	0.047	0.038	0.017	0.060	0.031	0.017	0.044
	% Decrease	97.4			95.6			96.6
PbCl2	U	0.632	0.328	0.987	0.727	0.458	1.035	0.680	0.512	0.848
	T	0.033	0.018	0.050	0.064	0.041	0.090	0.049	0.035	0.061
	% Decrease	94.8			91.2			92.8
Pb3(PO4)2	U	0.423	0.323	0.547	0.575	0.482	0.689	0.499	0.429	0.568
	T	0.030	−0.004	0.067	0.033	0.015	0.054	0.032	0.013	0.050
	% Decrease	92.9			94.3			93.6
PbSO4	U	0.947	0.498	1.472	0.904	0.757	1.083	0.926	0.741	1.114
	T	0.019	0.008	0.031	0.029	0.007	0.053	0.024	0.012	0.036
	% Decrease	98.0			96.8			97.4
PLJ	U	0.068	0.051	0.089	0.013	0.010	0.016	0.041	0.032	0.049

^*Mean RBA estimates with LCL and UCL 95% confidence intervals based on bone or blood tissue data. RBA point estimates are means of tissue-derived RBA estimates.