Do earthworms mobilize fixed zinc from ingested soil?

  title={Do earthworms mobilize fixed zinc from ingested soil?},
  author={Janeck J Scott-Fordsmand and Daryl P Stevens and Mike J Mclaughlin},
  journal={Environmental science & technology},
  volume={38 11},
A wide range of organisms inhabit the soil and has to deal with soil-bound metals. The bioavailable fraction of metals may be estimated explicitly using the isotopic dilution technique. In the present paper, we evaluated the isotopic exchange technique for assessing the bioavailability of soil Zn (using 65Zn) to earthworms. To validate the technique, the worms were first exposed to various 65Zn levels, and errors due to soil entrained in the gut were evaluated. This exposure indicated no effect… CONTINUE READING