Levels and distributions of210 pb and210 po in selected seafood samples in china and assessment of related dose to population

Abstract

In this study, the activity concentrations levels of210Pb and210Po in the edible portions of eight seafood samples collected from the Fujian coast of China were determined. The activity concentrations ranged from 0.74 ± 0.08 to 12.6 ± 1.0 Bq/kg for210Po and from the minimum detectable limit (MDL, 0.80 Bq/kg) to 11. 7 ± 1.1 Bq/kg for210Pb. The210Po activity concentration in all the fish organs ranged from 0.68 to 204 Bq/kg (w.w.), and the210Po activity was mainly concentrated in the stomach, spleen, heart, liver, gonad, and intestine samples. The210Pb activity concentration in all the fish organs ranged from the MDL to 15.2 Bq/kg (w.w.), and the210Pb activity was concentrated in the head, fish scale, and gill samples. The annual effective ingestion doses ranged from 82.8 to 255 μSv/a for all age groups, and the lifetime risk of cancers were estimated. Both the effective ingestion doses and cancer risk to humans were within the acceptable ranges.