Masaryk University, Faculty of Science, Research Centre for Toxic Compounds in the Environment RECETOX, Kamenice 126/3, 625 00 Brno, Czech Republic.
Environ Pollut. 2012 Jul;166:157-66. doi: 10.1016/j.envpol.2012.02.022. Epub 2012 Apr 12.
Dissolved waterborne polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs) and organochlorine pesticides (OCPs) were assessed over a period of one year at five sampling sites in a model industrial region in the Czech Republic using silicone rubber passive samplers. The spatial variability of POPs in the studied region in water was small and diffusive pollution sources predominate. Concentrations of the most volatile PAHs decreased with increasing water temperature in the whole region, which reflects the seasonality in atmospheric deposition. The dissolved concentrations of more hydrophobic PAHs, PCBs and OCPs in and downstream the industrial zone are related to desorption from suspended particles. Upstream the industrial area, a positive correlation of dissolved and particle-bound contamination was observed only for DDT metabolites and hexachlorobenzene. Calculated fugacities in water and bottom sediment indicated a fair degree of equilibrium between these compartments for OCPs and PCBs, whereas sediment represented a potential source of PAHs.
在捷克共和国的一个模型工业区的五个采样点，使用硅橡胶被动采样器，在一年的时间里评估了溶解在水中的多环芳烃（PAHs）、多氯联苯（PCBs）和有机氯农药（OCPs）。研究区域水中的 POPs 空间变异性较小，扩散污染源占主导地位。整个地区，最易挥发的 PAHs 浓度随着水温的升高而降低，这反映了大气沉积的季节性。工业区上下游溶解的和颗粒结合的多环芳烃、PCBs 和 OCPs 浓度与悬浮颗粒上的解吸有关。在工业区上游，只有 DDT 代谢物和六氯苯的溶解态和颗粒态污染呈正相关。水中和底泥中计算的逸度表明，OCPs 和 PCBs 之间在这些隔室之间达到了相当程度的平衡，而底泥则代表了 PAHs 的潜在来源。
