FATE OF PETROLEUM COMPONENTS IN ESTUARINE WATERS OF THE SOUTHEASTERN UNITED STATES

ABSTRACT Radiolabeled hydrocarbons and phenols were added to water samples from the Skidaway and Cooper Rivers, two estuarine rivers on the U.S. south Atlantic coast. The adsorption of hydrocarbons to particles and microbial degradation of different petroleum components were the processes studied. Alkanes, low molecular weight aromatics (benzene, toluene, naphthalene and methylnaphthalene) and phenols were rapidly degraded to 14CO2. Low degradation rates were observed for the higher weight polycyclic aromatic hydrocarbons, fluorene, anthracene, benz(a)anthracene, and benz(a)pyrene, and from 12 to 70% of these hydrocarbons were absorbed to suspended particles in the water. Radioauto graphs of particles after the addition of 3H-benz(a)pyrene and 3H-hexadecane to the water samples indicated the hydrocarbons associated with detrital particles. This detritus was composed of a mixture of clay, organic matter, plankton remains and living microbes. One area of the Cooper River had visible oil slicks and the degradation rates of added heptadecane (20 μg/l), naphthalene (30 μg/l) and methylnaphthalene (30 μg/l) were 0.4, 2.8 and 1.1 μg/I/day, respectively. In contrast, at a downstream site, where there were no visible slicks, the degradation rate of these same hydrocarbons were 0.1, 0.7 and 0.1 μg/l/day, respectively. Estuarine water had much higher hydrocarbon degradation rates than offshore and Gulf Stream waters.

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Emulsification liquid–liquid microextraction based on deep eutectic solvent: An extraction method for the determination of benzene, toluene, ethylbenzene and seven polycyclic aromatic hydrocarbons from water samples

Journal of Chromatography A ◽

10.1016/j.chroma.2015.11.007 ◽

2015 ◽

Vol 1425 ◽

pp. 25-33 ◽

Cited By ~ 95

Author(s):

Tahere Khezeli ◽

Ali Daneshfar ◽

Reza Sahraei

Keyword(s):

Polycyclic Aromatic Hydrocarbons ◽

Aromatic Hydrocarbons ◽

Water Samples ◽

Extraction Method ◽

Deep Eutectic Solvent ◽

Polycyclic Aromatic ◽

Benzene Toluene ◽

Liquid Microextraction

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Temporary Migrations of Gulf Stream Water on the Atlantic Seaboard

Journal of the Fisheries Research Board of Canada ◽

10.1139/f38-034 ◽

1939 ◽

Vol 4b (5) ◽

pp. 339-348 ◽

Cited By ~ 7

Author(s):

H. B. Hachey

Keyword(s):

Sea Level ◽

Gulf Stream ◽

Stream Water ◽

Atlantic Coast ◽

Inverse Correlation ◽

Current Strength ◽

Cold Wall ◽

Northern Limit ◽

Atlantic Seaboard ◽

Stream Waters

Analyses of 161 thermograms from vessels on the Boston-Bermuda route illustrate temporary migrations of Gulf Stream water during 1932–1938. A northern limit of Gulf Stream waters, determined by the position of the "cold wall", on this route varies between latitudes 36°41′N. and 40°23′N. Average monthly positions of the northern limit indicate that more southerly positions follow the equinoxes. These mean monthly positions, plotted on a lagging scale, are inversely correlated with average monthly differences in sea level between Bermuda and Charleston, S.C., which inverse correlation indicates that the position of the northern limit is related to current strength, decrease in strength being followed by northerly migrations, and increase by southerly migrations. Hydrographic observations off the Canadian Atlantic coast offer some evidence of the influence of these migrations on the waters of this area.

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Comparison of Hydrocarbon-Degrading Consortia from Surface and Deep Waters of the Eastern Mediterranean Sea: Characterization and Degradation Potential

Energies ◽

10.3390/en14082246 ◽

2021 ◽

Vol 14 (8) ◽

pp. 2246

Author(s):

Georgia Charalampous ◽

Efsevia Fragkou ◽

Konstantinos A. Kormas ◽

Alexandre B. De Menezes ◽

Paraskevi N. Polymenakou ◽

...

Keyword(s):

Mediterranean Sea ◽

Oil Spills ◽

Eastern Mediterranean ◽

Sole Source ◽

Eastern Mediterranean Sea ◽

Deep Waters ◽

Degradation Rates ◽

Polycyclic Aromatic ◽

Set Up

The diversity and degradation capacity of hydrocarbon-degrading consortia from surface and deep waters of the Eastern Mediterranean Sea were studied in time-series experiments. Microcosms were set up in ONR7a medium at in situ temperatures of 25 °C and 14 °C for the Surface and Deep consortia, respectively, and crude oil as the sole source of carbon. The Deep consortium was additionally investigated at 25 °C to allow the direct comparison of the degradation rates to the Surface consortium. In total, ~50% of the alkanes and ~15% of the polycyclic aromatic hydrocarbons were degraded in all treatments by Day 24. Approximately ~95% of the total biodegradation by the Deep consortium took place within 6 days regardless of temperature, whereas comparable levels of degradation were reached on Day 12 by the Surface consortium. Both consortia were dominated by well-known hydrocarbon-degrading taxa. Temperature played a significant role in shaping the Deep consortia communities with Pseudomonas and Pseudoalteromonas dominating at 25 °C and Alcanivorax at 14 °C. Overall, the Deep consortium showed a higher efficiency for hydrocarbon degradation within the first week following contamination, which is critical in the case of oil spills, and thus merits further investigation for its exploitation in bioremediation technologies tailored to the Eastern Mediterranean Sea.

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Derivation of carbonaceous nanoparticles from glucose-modified nickel-titanium oxide nanoparticles grown on Nitinol fiber for solid phase microextraction of several polycyclic aromatic hydrocarbons in water samples

Talanta Open ◽

10.1016/j.talo.2020.100030 ◽

2020 ◽

pp. 100030

Author(s):

Yu Liu ◽

Chanchan An ◽

Rong Zhang ◽

Junliang Du ◽

Xuemei Wang ◽

...

Keyword(s):

Polycyclic Aromatic Hydrocarbons ◽

Titanium Oxide ◽

Aromatic Hydrocarbons ◽

Water Samples ◽

Solid Phase Microextraction ◽

Solid Phase ◽

Nickel Titanium ◽

Oxide Nanoparticles ◽

Titanium Oxide Nanoparticles ◽

Polycyclic Aromatic

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Bilayer Surfactants of Fatty Acid and Cetyltrimethylammonium Bromide on Magnetic Nanoparticles for Preconcentration of Polycyclic Aromatic Hydrocarbons in Water Samples

Chromatographia ◽

10.1007/s10337-017-3354-7 ◽

2017 ◽

Vol 81 (2) ◽

pp. 215-224 ◽

Cited By ~ 4

Author(s):

Puangtong Puangkaew ◽

Tinnakorn Tiensing

Keyword(s):

Polycyclic Aromatic Hydrocarbons ◽

Fatty Acid ◽

Magnetic Nanoparticles ◽

Aromatic Hydrocarbons ◽

Water Samples ◽

Cetyltrimethylammonium Bromide ◽

Polycyclic Aromatic

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Interaction with Endogenous Microorganisms, Comamonas testosteroni Enhanced the Degradation of Polycyclic Aromatic Hydrocarbon in Soil

10.21203/rs.3.rs-307586/v1 ◽

2021 ◽

Author(s):

Xueting Sun ◽

Xin Li ◽

Yue Cui ◽

Ziwei Jiang ◽

Qiao Wang ◽

...

Keyword(s):

Contaminated Soil ◽

Structural Equation ◽

Functional Role ◽

Degradation Rate ◽

Structural Equation Models ◽

Low Molecular Weight ◽

Comamonas Testosteroni ◽

Functional Bacteria ◽

Polycyclic Aromatic

Abstract This study was to explore the functional role of Comamonas testosteroni (Ct) on soil indigenous microorganisms, and analyze the effect of Ct on PAHs degradation in PAH-contaminated soil. Results showed that inoculation of Ct could degrade naphthalene (Nap), phenanthrene (Phe), and benzo [α] pyrene (BaP) significantly. The degradation rate of Nap, Phe and BaP was 81.18%, 63.38% and 37.98% on day 25, respectively, suggesting that the low molecular weight of Nap and Phe were easier to be degraded by microorganisms than BaP. Network analysis showed that inoculation of Ct significantly increased the bacteria closely related to PAHs. Structural equation models confirmed Steroidobacter as functional bacteria could affect the degradation of Nap and BaP. Inoculated Ct could effectively enhance the synergy among indigenous bacteria to degrade PAHs. This would be helpful to understand the function of inoculated strains in PAH-contaminated soil and identify functional microorganisms of PAHs remediation.

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Magnetic solid phase extraction with octahedral structured Fe3O4@SiO2@polydimethylsiloxane magnetic nanoparticles as the sorbent for determining benzene, toluene, ethylbenzene and xylenes in water samples

RSC Advances ◽

10.1039/c7ra07733e ◽

2017 ◽

Vol 7 (66) ◽

pp. 41862-41868 ◽

Cited By ~ 2

Author(s):

Maosheng Zhang ◽

Guobin Huang ◽

Jiarong Huang ◽

Ling Zhong ◽

Weilan Chen

Keyword(s):

Magnetic Nanoparticles ◽

Solid Phase Extraction ◽

Water Samples ◽

Solid Phase ◽

Magnetic Solid Phase Extraction ◽

Phase Extraction ◽

Benzene Toluene ◽

Magnetic Solid ◽

First Time

Novel octahedral structured Fe3O4@SiO2@polydimethylsiloxane magnetic nanoparticles (Fe3O4@SiO2@PDMS MNPs) have been successfully synthesized for the first time.

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