Uptake of polychlorinated biphenyls and organochlorine pesticides from soil and air into radishes (Raphanus sativus)

Ondrej Mikes, P. Cupr, Stefan Trapp, J. Klanova

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Uptake of organochlorine pesticides and polychlorinated biphenyls from soil and air into radishes was measured at a heavily contaminated field site. The highest contaminant concentrations were found for DDT and its metabolites, and for beta-hexachlorocyclohexane. Bioconcentration factor (BCF, defined as a ratio between the contaminant concentration in the plant tissue and concentration in soil) was determined for roots, edible bulbs and shoots. Root BCF values were constant and not correlated to log K-OW. A negative correlation between BCF and log K-OW was found for edible bulbs. Shoot BCF values were rather constant and varied between 0.01 and 0.22. Resuspended soil particles may facilitate the transport of chemicals from soil to shoots. Elevated POP concentrations found in shoots of radishes grown in the control plot support the hypothesis that the uptake from air was more significant for shoots than the one from soil. The uptake of POPs from air was within the range of theoretical values predicted from log K-OA.
Original languageEnglish
JournalEnvironmental Pollution
Volume157
Issue number2
Pages (from-to)488-496
ISSN0269-7491
DOIs
Publication statusPublished - 2009

Keywords

  • Soil
  • Bioconcentration factor
  • Bioconcentration
  • Organochlorine pesticides
  • PCBs

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