40 aA © ROW 14 A ROW 16 O 20 10 6 4 A 2 2 Oo o E = wi 4.0 oO Oo 0.6 Oo 0.4 A aA aA 0.2 Oo A 10 LY 20 T 30 T 40 a qT 50 SAMPLE DEPTH (CM) al Si FIGURE B-9-9. AVERAGE SOIL CONCENTRATIONS OF 241 am VS. DEPTH IN X-1 AREA BEFORE PLOWING B-9-17
40 aA © ROW 14 A ROW 16 O 20 10 6 4 A 2 2 Oo o E = wi 4.0 oO Oo 0.6 Oo 0.4 A aA aA 0.2 Oo A 10 LY 20 T 30 T 40 a qT 50 SAMPLE DEPTH (CM) al Si FIGURE B-9-9. AVERAGE SOIL CONCENTRATIONS OF 241 am VS. DEPTH IN X-1 AREA BEFORE PLOWING B-9-17