Oil spill in the Río de la Plata estuary, Argentina: 2-hydrocarbon disappearance rates in sediments and soils

Colombo, Juan Carlos; Barreda, A.; Bilos, Claudio; Cappelletti, N.; Migoya, M.C.; Skorupka, Carlos Norberto

doi:10.1016/j.envpol.2004.07.028

Cited by 55 publications

(28 citation statements)

References 14 publications

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“…The average decay-rate constant k represents an estimated decay-rate of À12.19% day À1 . Colombo et al (2005) had previously reported the decay-rate constants in soils relative to sediments (À0.006 versus À0.003 day À1 , respectively). Even though dispersants were added to the weathering oil, the decay-rate constant k for oils in sea water is only À0.008 day À1 and À0.035 day À1 for total alkanes and total aromatics, respectively.…”

Section: Degradation Rates and Quantification Of The Mixed Oilsmentioning

confidence: 99%

GC–MS analysis of two types of mixed oils, a comparison of composition and weathering patterns

Wang

Luo

2015

Marine Pollution Bulletin

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a b s t r a c tIn order to compare the effects of weathering on two types of mixed oil, simulated weathering experiments were performed. The first sample was a mixture of two fresh oils and the second sample was a mixture of one fresh oil and another oil sample that had undergone a serious weathering process. Comparative studies evaluated decay rates and changes in diagnostic ratios of some fingerprinting biomarkers. Results showed that the mixing process affected the weathering rate of some compounds in the oils and also that certain diagnostic ratios are more suitable for estimating mixing proportions. A Pr/n-C 17 versus Ph/n-C 18 plot can be used to identify the end-numbers of mixed oils and the (C 13 + C 14 )/(C 25 + C 26 ) ratio is a useful diagnostic ratio to detect the degree of weathering. Finally, hopane, sterane, and alkylated PAH fingerprints were found to give useful insights about the sources of the mixed oils.

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Section: Degradation Rates and Quantification Of The Mixed Oilsmentioning

confidence: 99%

GC–MS analysis of two types of mixed oils, a comparison of composition and weathering patterns

Wang

Luo

2015

Marine Pollution Bulletin

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“…Polycyclic aromatic hydrocarbons can be introduced into natural seawater through atmospheric fallout, urban runoff, municipal effluents, industrial effluents, and oil spillage or leakage [7,8], and thereby pollute and damage marine environments. Several reports note that marine animals in the vicinity of oil spills are easily susceptible to disease and exhibit high toxicity [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Studies on the sorption behaviors of phenanthrene on marine sediments

Yang

Zheng

2010

Enviro Toxic and Chemistry

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In the present study, the sorption behaviors of phenanthrene on marine sediments were investigated. Through the study of the adsorption kinetics and isotherms, the adsorption mechanism of phenanthrene on marine sediments was described. The results showed that the adsorption kinetics of phenanthrene on marine sediments could be described by the second-order kinetic equation. The sorption rate of phenanthrene was very rapid, and the equilibrium time was slightly longer in deionized water than in natural seawater. The adsorption isotherms of phenanthrene on all the sediments could be very well described by Freundlich equations. The adsorption capacity of phenanthrene had a significant positive correlation with the sediment organic carbon content. Some external factors that could affect adsorption behaviors of phenanthrene were also investigated. Results of the present study showed that the adsorption capacity of phenanthrene on the sediment decreased with increasing temperature. Moreover, the adsorption amounts of phenanthrene on the sediment appeared to be lower in natural seawater than in deionized water. Finally, the presence of the surfactant of Tween20 in the system could enhance the adsorption of phenanthrene on the sediment, and the adsorbance was proportional to the concentration of Tween20.

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“…A widespread PAH contamination in the San Francisco Bay has been reported after a 10 year monitoring of water, sediment and biota samples [90]. Since the process of industrialization and urbanization is growing rapidly in South America, the potential increase in PAH contamination is under evaluation through a number of surveys in the coastal areas, collecting information about the PAH concentration in water, sediment and biota [91][92][93]. Of course, oil spills are well-known examples of PAH contamination in the aquatic environment.…”

Section: Environmental Monitoring Of Polycyclic Aromatic Hydrocarbonsmentioning

confidence: 99%

Polycyclic Aromatic Hydrocarbons a Constituent of Petroleum: Presence and Influence in the Aquatic Environment

Pampanin¹,

Sydnes²

2013

Hydrocarbon

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Oil spill in the Río de la Plata estuary, Argentina: 2-hydrocarbon disappearance rates in sediments and soils

Cited by 55 publications

References 14 publications

GC–MS analysis of two types of mixed oils, a comparison of composition and weathering patterns

GC–MS analysis of two types of mixed oils, a comparison of composition and weathering patterns

Studies on the sorption behaviors of phenanthrene on marine sediments

Polycyclic Aromatic Hydrocarbons a Constituent of Petroleum: Presence and Influence in the Aquatic Environment

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