کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4425272 | 1309098 | 2011 | 7 صفحه PDF | دانلود رایگان |
This study reports concentrations of PBDEs in surface soil samples collected along a 140 km transect across Kuwait to assess the role of urban centers as sources of persistent organic pollutants to the surrounding environment. The ΣPBDE concentrations varied by a factor of ∼250 and ranged from 289 to 80,078 pg g−1 d.w. The concentrations of PBDEs in Kuwait City were significantly higher (p < 0.01) than those collected from sites outside the city supporting the hypothesis that urban centers are sources of PBDEs. The congener profiles were dominated by BDE-209, accounting for 93% of the PBDEs in the soil samples. The concentrations of all congeners (except BDE-209) were highly correlated with percent organic carbon (%OC) (p > 0.05) when the data from Kuwait City was omitted from the analysis. These findings suggest that soil concentrations outside the urban centers were close to equilibrium with the atmosphere.
► ΣPBDE soil concentrations higher in City compared to samples from remote locations.
► ΣPBDE soil concentrations significantly correlated with %OC in remote samples.
► Study lends support to hypothesis that urban centers are sources of PBDEs.
Journal: Environmental Pollution - Volume 159, Issue 12, December 2011, Pages 3666–3672