Polycyclic aromatic hydrocarbon ecotoxicity data for developing soil quality criteria

Reviews of Environmental Contamination and Toxicology
John Jensen, Line E Sverdrup

Abstract

With the overall perspective of calculating soil quality criteria (SQC) for the group of polycyclic aromatic hydrocarbons (PAHs), the existing ecotoxicity data for the soil compartment have been reviewed. The majority of data useful in the context of deriving SQC are of recent origin. Soil quality criteria are considered valuable tools for assessing the environmental risk of contamination, as they may give guidance on concentration limits for various chemicals to protect the function and structure of ecosystems. Soil quality criteria for soil-dwelling species were calculated using various assumptions and two internationally accepted methods, i.e., application of assessment factors and species sensitivity distributions, respectively. It was suggested to derive ecotoxicological soil quality criteria, which focus on the lower molecular weight PAHs, i.e., those with log Kow values lower than 5.5 or 6; this is the log Kow range where a cutoff in toxicity for terrestrial species is expected for narcotic substances. Predicted values from the two methods were similar. Calculations showed that, for four individual PAHs of three or four rings, SQC fall in the range of 1.0 and 2.5 mg kg(-1). However, as no individual PAH is fond alone it ...Continue Reading

Citations

Jul 22, 2014·Environmental Toxicology and Chemistry·Jinjin ChengXingxiang Wang
Feb 14, 2012·Ecotoxicology·Mieke BroerseCornelis A M van Gestel
Oct 18, 2011·Journal of Environmental Monitoring : JEM·L M NunesM R Teixeira

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