2014. Evaluation of the Organic-Pollution Based on the Determination of some Polycyclic Aromatic Hydrocarbons(PAHs) in Tigris River Water in 2012 at Baghdad City , Iraq. Baghdad Science Journal. 11, 2 (Jun. 2014), 399–406. DOI:https://doi.org/10.21123/bsj.2014.11.2.399-406.