Rhind SM, Kyle CE, Kerr C, Osprey M, Zhang ZL, Duff EI, Lilly A, Nolan A, Hudson G, Towers W, Bell J, Coull M, McKenzie C. Concentrations and geographic distribution of selected organic pollutants in Scottish surface soils.
Environ Pollut 2013;
182:15-27. [PMID:
23892068 DOI:
10.1016/j.envpol.2013.06.041]
[Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Revised: 06/03/2013] [Accepted: 06/26/2013] [Indexed: 06/02/2023]
Abstract
Concentrations of selected persistent organic pollutants (POPs) representing three chemical classes (polycyclic aromatic hydrocarbons (PAH), polybrominated diphenyl ethers (PBDE) and polychlorinated biphenyls (PCB) and the organic pollutant diethylhexyl phthalate (DEHP), were determined in surface soil samples (0-5 cm) collected at 20 km grid intersects throughout Scotland over a three-year period. Detectable amounts of all chemical classes and most individual congeners were present in all samples. There were no consistent effects of soil or vegetation type, soil carbon content, pH, altitude or distance from centres of population on concentrations which exhibited extreme variation, even in adjacent samples. It is concluded that soil POPs and DEHP concentrations and associated rates of animal and human exposure were highly variable, influenced by multiple, interacting factors, and not clearly related to local sources but possibly related to wet atmospheric deposition and the organic carbon content of the soil.
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