Humic acids increase dissolved lead bioavailability for marine invertebrates.

@article{SnchezMarn2007HumicAI,
  title={Humic acids increase dissolved lead bioavailability for marine invertebrates.},
  author={Paula S{\'a}nchez-Mar{\'i}n and J Ignacio Lorenzo and Ronny Blust and Ricardo Beiras},
  journal={Environmental science & technology},
  year={2007},
  volume={41 16},
  pages={5679-84}
}
The presence of dissolved organic matter (DOM), as humic acids (HA), in natural waters is assumed to decrease dissolved metal bioavailability by binding metal ions and, therefore, decreasing the free ion concentration in solution. In this study, Pb complexation by HA in artificial seawater was checked by means of square wave anodic stripping voltammetry (SWASV). Uptake and toxicity of this metal in the absence and presence of HA was tested using excised gills of Mytilus edulis and the… CONTINUE READING