Organic Pollutants in Environment - Markers and Biomarkers of Toxicity


Distribution of Pollutants in Environment


The studies are focused on:

  • species, levels, distribution, and origin of persistent organochlorine compounds and selected pesticides in environmental matrices as well as on the temporal and geographical differences and routes of human exposure to organochlorines;
  • long-term trends in the exposure of the general population in Croatia to persistent organochlorine compounds;
  • human exposure to PCBs and metals using toxic equivalents (TEQs) and target hazard quotients (THQs);
  • the influence of physicochemical properties of pesticides and pedological properties of soils on sorption/desorption interactions, persistence and mobility of pesticides in water/soil environment;
  • genotoxicity of pesticide species extracted from contaminated water and soil samples.
  • herbicide behaviour in soils under field conditions and conventional agricultural practice: field experiments aiming to investigate the dissipation rate and mobility of selected herbicides in agricultural soils treated with commercial herbicide formulations.

Analytical methods are based on:

  • extraction of organic pollutants from environmental and biological matrices (solvent or solid-phase extraction, ultrasound assisted solvent extraction, microwave assisted solvent extraction) followed by capillary gas chromatography or high performance liquid chromatography with selective detection including mass spectrometry;
  • decomposition of environmental and biological samples and sample freeze-drying followed by trace elements analysis using inductively coupled plasma mass spectrometry.


Figure 1. Herbicide treated experimental field

Figure 2. Soil sampling


Figure 3. Herbicide analysis by high performance liquid chromatography with diode-array detection