Fast scanning of illegal oil discharges for forensic identification: a case study of Turkish coasts

• Published in: Environmental monitoring and assessment 2015-04, Vol.187 (4), p.211-211, Article 211
• Main Authors: Telli Karakoç, Fatma, Atabay, Hakan, Tolun, Leyla, Kuzyaka, Ersan
• Format: Article
• Language: English
• Subjects: Atmospheric Protection/Air Quality Control/Air Pollution; Case studies; Chemical analysis; Chemical spills; Chromatography; Chromatography, Gas - methods; Conventions; Crude oil; Earth and Environmental Science; Ecology; Ecotoxicology; Environment; Environmental Management; Environmental monitoring; Environmental Monitoring - methods; Fingerprinting; Flame Ionization; Fourier transforms; Gas chromatography; Gas Chromatography-Mass Spectrometry; High-performance liquid chromatography; Hydrocarbons; Liquid chromatography; Marine transportation; Monitoring/Environmental Analysis; Oceans and Seas; Oil pollution; Oil spills; Oils & fats; Oils - analysis; Petroleum Pollution; Scientific imaging; Seawater; Seawater - analysis; Spectrometry; Turkey; Water analysis; Water Pollutants, Chemical - analysis; Water pollution; Water Pollution, Chemical - legislation & jurisprudence; Water sampling
• ISSN: 0167-6369; 1573-2959
• DOI: 10.1007/s10661-015-4421-x

Increasing marine traffic, over 55,000 ships visit per year, through the Turkish Straits System and the Sea of Marmara, produces a yearly average of 12 illegal oil discharges. This paper documents the comparison of chemical fingerprints of spilled oil with suspected sources of oils for identifying the source of illegal pollution in Turkey’s seas. Fingerprinting is initiated by comparison of the synchronous fluorescence spectra ( Δ  = 20 or 15 nm) of fugitive and suspected source oils. Potential matches of the spectra/chromatogram are confirmed or rejected by subsequent comparison of Fourier transform infrared spectrometry (FTIR), high-pressure liquid chromatography (HPLC) and gas chromatography with a flame ionisation detector (GC-FID) analysis results. In this study, 39 clean sea waters, 41 polluted sea waters and 111 suspected samples were analysed. According to the comparison of the suspected source sample and polluted sea water sample spectra by using spectrofluorometric analysis, 76 suspected source samples were categorised as non-match whilst 35 suspected samples were classified as match or probable match . Then, match and probable match samples were analysed by using further selected chromatographic methods. Finally, 28 suspected source samples were confirmed as a match, enabling legal proceedings to be initiated.