Air-soil exchange of PCBs: Seasonal variations in levels and fluxes with influence of equilibrium conditions
Date
2012-10
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier Science
Abstract
The variations in the occurrences of PCB congeners both in soil and air were investigated in conjunction with each other, and the changes in the fugacity fractions and flux levels were examined on a seasonal basis. Air and soil samples were collected concurrently two or three times in a month during a one-year monitoring at two different locations in Bursa, located in the northwestern Turkey. Fugacity fractions and net flux levels of PCB congeners were calculated. Air and soil PCB levels increased together as the soil temperature increased, suggesting the influence of instantaneous air-soil exchange towards the equilibrium conditions. The flux levels and fugacity fractions also showed a positive significant correlation with soil temperature. Flux levels were positive for the dates with fugacity fractions above 0.5, indicating volatilization from soil to air.
Description
Keywords
Environmental sciences & ecology, Fugacity fraction, Homologue groups, Soil temperature, Bursa city, Persistent organic pollutants, Polychlorinated biphenyl congeners, Polycyclic aromatic-hydrocarbons, Henrys law constants, Organochlorine pesticides, Temperature-dependence, Surface soils, Ambient concentrations, Industrial-area, Temporal trends, Bursa [Bursa (PRV)], Bursa [Turkey], Turkey, Organic pollutants, Polychlorinated biphenyls, Temperature, Equilibrium conditions, Fugacity fraction, Northwestern Turkey, PCB congeners, Seasonal variation, Soil sample, Air-soil interaction, Fugacity, PCB, Seasonal variation, Soils
Citation
Taşdemir, Y. vd. (2012). "Air-soil exchange of PCBs: Seasonal variations in levels and fluxes with influence of equilibrium conditions". Environmental Pollution, 169, 90-97.