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Annex B to <br />To LC 12.4.2.1 <br />Lower Limits of Detection (LLD) for Sample Analysis <br />U-natural, Th-230, Ra-226 in air - 1 x 10-16 <br />uCi/ml <br />Pb-210 in air' - 2 x 10-15 <br />uCi/ml <br />Rn-222 - 2 x 10-10 <br />uCi/ml <br />U-natural, Th-230, Ra-226 in water - 2 x 10-10 <br />uCi/ml <br />Po-210 in water - 1 x 10-g <br />uCi/ml <br />Pb-210 in water - 1 x 10-g <br />uCi/ml <br />U-natural, Th-230, Ra-226, Pb-210 <br />in soil and sediment (dry) - 2 x 10-7 <br />uCi/g <br />U-natural, Th-230 in vegetation, <br />food, and fish (wet) - 2 x 10-7 <br />uCi/kg <br />Ra-226 in vegetation, food, and <br />fish (wet) - 5 x 10-g <br />uCi/kg <br />Po-210, Pb-210 in vegetation, food, <br />and fish (wet) - 1 x 10-6 <br />uCi/kg <br />-27- <br />