Polychlorinated dibenzo-p-dioxines and dibenzofurans in agricultural soils of the Czech Republic

Abstract

The set of 102 samples of agricultural soils was taken for the study of the load of agricultural soils with polychlorinated dibenzo-p-dioxins and dibenzofuranes (PCDDs/Fs). The background value of PCDDs/Fs in agricultural soils of theCzech Republicwas determined. The soils with different sources of the load of PCDDs/Fs were compared. It was concluded that fluvisols in fluvial zones and soils with long-term sludge application are soils with the highest contents of PCDDs/Fs. The soils affected by imission outputs show a lower intensity of the load with PCDDs/Fs that is characterised by higher content of toxic congeners.

Keywords

• polychlorinated dibenzo-p-dioxins and dibenzofurans
• persistent organic pollutants
• agricultural soil
• contamination