Journal
ENVIRONMENTAL POLLUTION
Volume 148, Issue 2, Pages 529-538Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2006.11.028
Keywords
condensed organic matter; polycyclic aromatic hydrocarbons; accelerated solvent extraction; aqueous leaching; soils; sediments
Categories
Ask authors/readers for more resources
The contents of nonhydrolyzable organic matter (NHC) and black carbon (BC) were measured in soils and sediments from the Pearl River Delta, South China. Polycyclic aromatic hydrocarbons (PAHs) were extracted respectively by Soxhlet and an accelerated solvent extraction device (ASE) using different solvents. In addition, sequential aqueous leaching at different temperatures was carried out. The PAH content extracted with the sequential three solvent ASE is two times higher than that using the Soxhlet extraction method. The relationship of the PAH content with the NHC content is very significant. The PAH concentrations measured at various temperature steps fit well to the Van't Hoff equation and the enthalpy was estimated. The investigation indicates that condensed organic matter such as kerogen carbon, aged organic matter, and BC is relevant for the extraction and distribution of native PAHs in the investigated field soils and sediments. (c) 2006 Published by Elsevier Ltd.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available