Polycyclic Aromatic Hydrocarbons in Soils from European High Mountain Areas
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- 作者：Roberto Quiroz (1)
Joan O. Grimalt (1) joan.grimalt@idaea.csic.es
Pilar Fernandez (1)
Lluis Camarero (2)
Jordi Catalan (2)
Evzen Stuchlik (3)
Hansjoerg Thies (4)
Ulrike Nickus (5) - 关键词：Polycyclic aromatic hydrocarbons – ; Soils – ; High mountains – ; Altitudinal dependences – ; Retene – ; Long ; range atmospheric transport of polycyclic aromatic hydrocarbons
- 刊名：Water ; Air ; and Soil Pollution
- 出版时间：February 2011
- 出版年：2011
- 期刊代码：78_00496979
- 类别：law
- 卷：215
- 期：1-4
- 页码：655-666
- 数据来源：sp
摘要
Polycyclic aromatic hydrocarbons (PAHs) were analyzed in 70 soils distributed in mountain areas such as Montseny (300–1,700 m), Pyrenees (1,500–2,900 m), Alps (1,100–2,500 m), and Tatras (1,400–1,960 m). Average total PAH concentrations, excluding retene and perylene, were about 400 ng/g in the Pyrenees and 1,300–1,600 ng/g in the other mountain ranges. No correlations between PAH concentrations and total organic carbon were observed. Retene was the major PAH in the Pyrenean soils of lower altitude. No altitudinal dependence was found between soil PAH concentrations and elevation for the whole dataset. However, in the Tatra soils a statistically significant correlation with altitude was observed involving higher concentrations at higher altitude. This correlation was due to the statistically significant altitudinal dependence of the more volatile PAHs. Another observed altitudinal trend concerned the benz[a]anthracene/(benz[a]anthracene + chrysene + triphenylene) and the benzo[a]pyrene/(benzo[a]pyrene + benzo[e]pyrene) ratios that exhibited a decrease in the more chemically labile compounds, benz[a]anthracene and benzo[a]pyrene, respectively, in the soils located at higher altitude. This observation is consistent with the expected higher photooxidation at higher mountain altitude.