Jensen Henning, Reimann Clemens, Finne Tor Erik, Ottesen Rolf Tore, Arnoldussen Arnold
Geological Survey of Norway (NGU), Environmental Geochemistry, N-7491 Trondheim, Norway.
Environ Pollut. 2007 Feb;145(3):829-38. doi: 10.1016/j.envpol.2006.05.008. Epub 2006 Jun 19.
The top 2 cm of forest soils were collected along a 120 km long south-north transect running through Norway's largest city Oslo. Forty samples were analysed for their polycyclic aromatic hydrocarbon (PAH(16) as defined by the U.S. Environmental Protection Agency) concentrations and compositions. Local variations in the PAH values are high and the reported concentrations are in general low (maximum sumPAH16: 2.6 mg/kg). The transect shows distinct differences of sumPAH16 values from south to north. PAH concentrations are substantially lower in the less populated areas at the north end of the transect than at the urbanised and much more populated south end. Several high values occur in a forested area to the north of Oslo, used for recreation purposes. The PAH distribution patterns point towards a predominantly pyrogenic origin. Local Cambrian carbon-rich black shales can be excluded as sources for PAHs in the forest soils.
沿着一条贯穿挪威最大城市奥斯陆、长达120公里的南北向样带，采集了表层2厘米的森林土壤。对40个样本进行了分析，测定其多环芳烃（美国环境保护局定义的PAH(16)）浓度和组成。PAH值的局部变化很大，报告的浓度总体较低（最大总PAH16：2.6毫克/千克）。该样带显示出从南到北总PAH16值的明显差异。样带北端人口较少地区的PAH浓度明显低于城市化程度更高、人口更多的南端。在奥斯陆以北一个用于休闲目的的林区出现了几个高值。PAH分布模式表明其主要起源于热解。当地寒武纪富含碳的黑色页岩可排除为森林土壤中PAHs的来源。
