Title: Distribution of polycyclic aromatic hydrocarbons in soils and corns, and its risk assessment in summer around Zhongyuan, oil field, China

Authors: Shaoping Kuang, Hong Chen

Addresses: Qingdao University of Science and Technology, Qingdao 266042, China; State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan 430074, China; Key Lab of Biogeology and Environmental Geology of Ministry of Education, China University of Geosciences, Wuhan 430074, China. ' Qingdao University of Science and Technology, Qingdao 266042, China

Abstract: The purpose of this study was to determine the degree of contamination with polycyclic aromatic hydrocarbons (PAHs) in samples of soils, and corn around three different oily sludges in Zhongyuan oil field in summer. The contents of PAHs in the soil samples from high to low were the Third Wenming oil sludge (3W) > the Third Mazhai oil sludge (3M) > the Fourth Wen|er oil sludge (4W). The contents of PAHs in the corn root and leaf samples from high to low were 3W > 3M > 4W, 3W > 4W > 3M, respectively. This article also determined the health risk assessment and ecological risk assessment in soils. The evaluation results of Nemero index P show that the soils around Zhongyuan oil field in summer present 33.3% of those as |heavily contaminated|, 5.6% as |medium contaminated|, 44.4% as |light contaminated|. So pollution from oily sludges should be paid more attention to. [Received: April 23, 2009; Accepted: July 13, 2009[

Keywords: oil fields; corn; polycyclic aromatic hydrocarbons; PAHs; soil contamination; health risk assessment; ecological risk assessment; Nemero index P; China; environmental pollution; oil sludge.

DOI: 10.1504/IJOGCT.2009.030678

International Journal of Oil, Gas and Coal Technology, 2009 Vol.2 No.4, pp.331 - 346

Published online: 30 Dec 2009 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article