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All Journal Indian Journal of Forensic Medicine & Toxicology
Wisam Abdul-Ameer Farid1 , Wasen Abdul-Ameer Ali1 , Aseel Nadum Al-Salman2
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Contamination of Polynuclear Aromatic Hydrocarbons- (PNAH) in Sediments: Identification and Distribution in the River of Shatt Al-Arab-(ROSA) Wisam Abdul-Ameer Farid1 , Wasen Abdul-Ameer Ali1 , Aseel Nadum Al-Salman2
Indian Journal of Forensic Medicine & Toxicology Vol. 14 No. 4 (2020): Indian Journal of Forensic Medicine & Toxicology
Publisher : Institute of Medico-legal Publications Pvt Ltd

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37506/ijfmt.v14i4.11566

Abstract

The sediments were analyzed for total organic carbon content-(TOCC), grain size-(GS), and PNAH levelsand origins. The sediments were taken from 9 stations-(ST) on ROSA. Gas chromatography-(GC) analysisshowed that the PNAH level in ROSA sediments was comparatively low to medium compared to otherworld locations. The PNAH total levels varied from 31.86 ng/g dry weight-(DW)-(ST 9) to 88.99 ng/g DW-(ST 6). The highest PNAH levels were close to oil pollution sources at ST 2, 4, 6, and 8. The TOCC rangedfrom 0.32 % to 1.64 %. The data suggested that the PNAH levels in the ROSA were linked to TOCC and GS.The PNAH compounds and ratios and analysis of principal components-(AOPC) indicated that the PNAHsources in the river were biogenic-(organisms), pyrogenic-(combustion), and petrogenic-(petroleum).Ecological risk evaluation showed that PNAH did not cause any deleterious impacts on the ROSA.
Bioremediation of Crude Oil-Contaminated Water and Sediments from the Shatt Al-Arab River (SAR) Wisam Abdul-Ameer Farid1 , Wasen Abdul-Ameer Ali1 , Aseel Nadum Al-Salman2
Indian Journal of Forensic Medicine & Toxicology Vol. 14 No. 4 (2020): Indian Journal of Forensic Medicine & Toxicology
Publisher : Institute of Medico-legal Publications Pvt Ltd

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37506/ijfmt.v14i4.12278

Abstract

In the SAR, the oil-degrading bacteria (O-DB) are widespread, forming 8 % to 14 % of heterotrophic bacteria(HB). The O-DB numbers and biodegradability of petroleum hydrocarbons (PHY) are important in summer(SU) and sediments (SE) compared to winter (WI) and water (WA). The common O-DB retrieved from theSAR are Pseudomonas sp. (PS), Pseudomonas putida (PP), Pseudomonas fluorescens (PF), Pseudomonasaeruginosa (PA), Pseudomonas cepacia (PC), Corynebactrium sp. (CO), Bacillus sp. (BA), Bacillus cereus(BC), Bacillus subtilis (BS), Flavobacterium sp. (FL), Aeromonas sp. (AE), Arthrobacter sp. (AR), Vibriosp. (VI), Nocardia sp. (NO), Acintobacter sp. (AC), Micrococcus sp. (MI), and Staphylococcus sp (ST). Themost effective O-DB utilized more than 52 % of oil in 21-days. A mixed culture made of mutant PP+ARutilized 93 % of oil during the same period. The oil biodegradation rates in the SAR have been restrictedby biotic and abiotic factors. By providing these factors to the oil-contaminated sites would improve thedegradation rates. The biodegradation of n-alkanes was much faster than polycyclic aromatic compounds(PAC).
Contamination of Polynuclear Aromatic Hydrocarbons- (PNAH) in Sediments: Identification And Distribution in the River of Shatt Al-Arab-(ROSA) Wisam Abdul-Ameer Farid1 , Wasen Abdul-Ameer Ali1 , Aseel Nadum Al-Salman2
Indian Journal of Forensic Medicine & Toxicology Vol. 14 No. 4 (2020): Indian Journal of Forensic Medicine & Toxicology
Publisher : Institute of Medico-legal Publications Pvt Ltd

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37506/ijfmt.v14i4.12279

Abstract

The sediments were analyzed for total organic carbon content-(TOCC), grain size-(GS), and PNAH levelsand origins. The sediments were taken from 9 stations-(ST) on ROSA. Gas chromatography-(GC) analysisshowed that the PNAH level in ROSA sediments was comparatively low to medium compared to otherworld locations. The PNAH total levels varied from 31.86 ng/g dry weight-(DW)-(ST 9) to 88.99 ng/g DW-(ST 6). The highest PNAH levels were close to oil pollution sources at ST 2, 4, 6, and 8. The TOCC rangedfrom 0.32 % to 1.64 %. The data suggested that the PNAH levels in the ROSA were linked to TOCC and GS.The PNAH compounds and ratios and analysis of principal components-(AOPC) indicated that the PNAHsources in the river were biogenic-(organisms), pyrogenic-(combustion), and petrogenic-(petroleum).Ecological risk evaluation showed that PNAH did not cause any deleterious impacts on the ROSA.
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