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Optical properties of crude oil detected in seawater

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EN
Abstrakty
EN
The effects of crude oils entering marine environment have been investigated since early 1960s when oil pollution became a subject of global environmental concern. Extraction and transportation of crude oils have been contributing to water pollution especially in closed water basins, such as the Baltic Sea. It was estimated that yearly oil input to the Baltic Sea amounts to 21-70 thousands of tons, which is twice higher than in the North Sea and three times higher than in the North Atlantic. Growing pollution loads into the Baltic Sea created a demand for multifarious studies on the environmental effects of oil products. In this study, we focus on bio-optical and ecological aspects of the presence of crude oil in seawater. Dispersed oil droplets occur in seawater as the result of contaminated river inflows, bilge water discharges and as the consequence of mechanical and chemical dispersion of oil spills. Their optical properties depend on oil type, concentration and size distribution. We present further results obtained from the developed fluorescence-based method for determination of the crude oil concentration in natural Baltic seawater and for evaluation of the oil droplets size by applying vacuum filtering. The results have been measured for the samples collected in Southern Baltic Sea during several ship cruises in 2012. We discuss the application of vacuum filtering in the fluorescence analyses in the context of laboratory, in situ and remote detection of dispersed oil.
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autor
  • Gdynia Maritime University Faculty of Marine Engineering Morska Street 81-87, 81-225 Gdynia, Poland tel.: +48 58 6901588, +48 58 6901384; fax: +48 58 6901399
autor
  • Gdynia Maritime University Faculty of Marine Engineering Morska Street 81-87, 81-225 Gdynia, Poland tel.: +48 58 6901588, +48 58 6901384; fax: +48 58 6901399
Bibliografia
  • [1] Boerresen, J. A., Oil in seawater, Ad Notam Gyldendal, Oslo, Norway, 1993.
  • [2] Frank, U., Jeleniewski, H., A Method for quantitating oil directly in water by fluorescence spectrophotometry, Epa Anal. Qc Newsletter, 18, 1973.
  • [3] Conmy, R. N, et al., Submersible optical sensors exposed to chemically-dispersed crude oil: wave tank simulations for improved oil spill monitoring, Environmental Science & Technology, No. 12, pp. 1803-1810, 2013.
  • [4] Haule, K., Toczek, H., Fluorescence properties of mechanically dispersed crude oil, Journal of KONES Powertrain and Transport (in press), 2014.
  • [5] HELCOM, Baltic Sea Environment Proceedings, No. 123, 2010.
  • [61 HELCOM, Third Periodic Assessment of the state of the marine environment of the Baltic sea (1989-1993), 1996.
  • [7]Homig, A. W., Identification, Estimation and monitoring of petroleum in marine waters by luminescence methods, Proc. Nbs Symp., Nbs Spec. Publ., 409, 135-137, 1974.
  • [8] Keizer, P. D., Gordon, D. C., Detection Of Trace Amounts Of Oil In Sea Water By Fluorescence Spectroscopy, J. Fish. Res. Board Can., 30, pp. 1039-1046, 1973.
  • [9] Lee, K., et al., Lab tests on the biodegradation of chemically dispersed oil should consider the rapid dilution that occurs at sea, Marine Pollution Bulletin, No. 73, pp. 314-318, 2013.
  • [10] Stelmaszewski, A., Determination of petroleum pollutants in coastal waters of the Gulf of Gdansk, Oceanologia, No. 51(1), pp. 85-92, 2009.
  • [11] Stelmaszewski, A., Fluorescence method for determination of oil identity, Optica Appl., XXXIV (3), 2004.
  • [12] Wang, W., Zheng, Y., Lee, K., Chemical dispersion of oil with mineral fines in a low temperature environment, Marine Pollution Bulletin, No. 5,2013.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-4f0bdbc8-797f-4a39-a197-fadacfb9fc1d
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