Abstract
The paper provides comprehensive information on the level of contamination of arable soils in Poland with polycyclic aromatic hydrocarbons (PAHs). Extensive monitoring studies were carried out to determine the content of the 16 priority PAHs in 216 soil samples collected in 2005 throughout arable lands (0–20 cm layer) in Poland. Locations of sampling points reflected the differences in regional industrialisation and urbanisation as well as in the characteristics of soils. The content of Σ16PAHs ranged from 80 to 7264 μg kg −1 with a median of 395 μg kg −1 and with a dominance of 4–6 rings hydrocarbons (74% of total PAHs). Soil properties affected the PAHs content to a limited extend. The organic matter content was the only parameter correlated significantly (although weakly) with the concentrations of Σ16PAHs; the strength of this relationship was more pronounced in soils with elevated OM content. The various molecular markers pointed to a prevailing pyrogenic origin of the PAHs in Polish arable soils, with minor contribution from liquid fuels combustion and traffic emissions. Two different Polish systems for classification of agricultural soils (providing for the content of Σ9PAHs and Σ13PAHs) indicate that the percentage of contaminated arable soils in Poland does not exceed 10%. Multivariate methods enabled an evaluation of spatial trends in Σ16PAHs concentrations, an identification of regions with very low PAHs content (East part of the country), and a recognition of small industrial/urbanised areas of higher risk.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.