Fig 1.
Location of study plots.
Table 1.
Chemical properties of test soils.
Fig 2.
Dendrogram based on cluster analysis, showing similarity of soil samples for all features.
Digits 1–7 are assigned to the respective numbers of study plots, from which soil was sampled for analyses.
Table 2.
Mean content of volatile organic compounds [mg.kg-1d.m.] in soils from study plots.
Table 3.
Mean PAHs content [mg.kg-1d.m.] in soils from study plots.
Fig 3.
Principal component analysis (PCA) for individual compounds and selected springtail species.
Table 4.
Inhibition of root growth in plant species: Lepidium sativum, Sinapis alba and Sorghum saccharatum [% effect] grown on test soils.
Table 5.
Coefficients of correlation between the content of hydrocarbons examined and the inhibition of plant root extension in Lepidium sativum, Sinapis alba and Sorghum saccharatum.
Table 6.
Germination of plant species: Lepidium sativum, Sinapis alba and Sorghum saccharatum [% effect] grown on test soils.
Table 7.
Coefficients of correlation between the content of hydrocarbons and germination inhibition in Lepidium sativum,Sinapis alba and Sorghum saccharatum.
Fig 4.
Number of springtail species identified in test soils.
Individual colors are assigned to the corresponding numbers of plots where soil was sampled for analysis.
Table 8.
Coefficients of correlation between the contents of hydrocarbons found in soils and the number of collembols.
Fig 5.
Maps of soil contamination for compounds that exceeded the EPA standards.