Polynuclear aromatic hydrocarbons (PAHs) in global background soils

被引：69

作者：

Nam, Jae Jak ^{[1
,2
,3
]}

Sweetman, Andrew J. ^{[1
]}

Jones, Kevin C. ^{[1
]}

机构：

[1] RDA, Natl Inst Agr Sci & Technol, Taegu 702701, South Korea

[2] Univ Lancaster, Ctr Chem Management, Lancaster LA1 4YQ, England

[3] Univ Lancaster, Lancaster Environm Ctr, Dept Environm Sci, Lancaster LA1 4YQ, England

来源：

JOURNAL OF ENVIRONMENTAL MONITORING | 2009年 / 11卷 / 01期

关键词：

PERSISTENT ORGANIC POLLUTANTS; BLACK CARBON; SOOT; QUANTIFICATION; SEDIMENTS; BUDGET; MATTER; PCBS;

D O I：

10.1039/b813841a

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The levels and distribution of polynuclear aromatic hydrocarbons (PAHs) were investigated in global background soil samples. Total PAH concentrations (sum of 15 compounds) ranged over 5 orders of magnitude, from <1 to 7,840 (mean 328) ng g(-1) dry weight. The order was generally Europe > North America > Asia > Oceania > Africa > South America. Proximity to long-term emissions sources and locations susceptible to high atmospheric depositional inputs tended to have higher concentrations. A broad positive correlation was obtained between population density and soil PAH concentrations (i.e. source-related factors). However, concentrations were also influenced by the holding capacity of the soils (i.e. sink-related factors) with statistically significant correlations observed between PAHs and soil organic matter (SOM), and black carbon (BC).

引用

页码：45 / 48

页数：4

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