Laboratoire des Sciences du Climat et de l'Environnement (LSCE), Unité Mixte de Recherche 8212 (CEA-CNRS-UVSQ/IPSL), Gif-sur-Yvette, France; Sorbonne Universités, UPMC Univ Paris 06, UMR 7619, METIS, F-75005 Paris, France; CNRS, UMR 7619, METIS, F-75005 Paris, France; EPHE, UMR 7619, METIS, F-75005 Paris, France.
Laboratoire des Sciences du Climat et de l'Environnement (LSCE), Unité Mixte de Recherche 8212 (CEA-CNRS-UVSQ/IPSL), Gif-sur-Yvette, France.
Environ Pollut. 2014 Jun;189:152-60. doi: 10.1016/j.envpol.2014.02.029. Epub 2014 Mar 22.
Various sources supply PAHs that accumulate in soils. The methodology we developed provided an evaluation of the contribution of local sources (road traffic, local industries) versus remote sources (long range atmospheric transport, fallout and gaseous exchanges) to PAH stocks in two contrasting subcatchments (46-614 km²) of the Seine River basin (France). Soil samples (n = 336) were analysed to investigate the spatial pattern of soil contamination across the catchments and an original combination with radionuclide measurements provided new insights into the evolution of the contamination with depth. Relationships between PAH concentrations and the distance to the potential sources were modelled. Despite both subcatchments are mainly rural, roadside areas appeared to concentrate 20% of the contamination inside the catchment while a local industry was found to be responsible for up to 30% of the stocks. Those results have important implications for understanding and controlling PAH contamination in rural areas of early-industrialized regions.
各种来源都会提供多环芳烃，这些物质会在土壤中积累。我们开发的方法为评估两个对比的塞纳河流域（法国）子流域（46-614 平方公里）中多环芳烃储量的本地源（道路交通、当地工业）与远程源（长程大气传输、沉降和气体交换）的贡献提供了依据。采集了 336 个土壤样本，以研究整个流域土壤污染的空间分布，放射性核素测量的原始组合为我们深入了解污染随深度的演变提供了新的见解。还对多环芳烃浓度与潜在污染源之间的关系进行了建模。尽管两个子流域主要是农村地区，但路边地区似乎集中了流域内 20%的污染，而一个当地工业则被认为是造成 30%多环芳烃储量的原因。这些结果对于理解和控制早期工业化地区农村地区的多环芳烃污染具有重要意义。
