Endocrine disrupting potential of PAHs and their alkylated analogues associated with oil spills

2017 ◽  
Vol 19 (9) ◽  
pp. 1117-1125 ◽  
Author(s):  
Sangwoo Lee ◽  
Seongjin Hong ◽  
Xiaoshan Liu ◽  
Cheolmin Kim ◽  
Dawoon Jung ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Petroleum Hydrocarbons ◽  
Oil Spills ◽  
Endocrine Disrupting ◽  
Polycyclic Aromatic ◽  
Alkylated Pahs

Polycyclic aromatic hydrocarbons (PAHs) and alkylated PAHs are known to be major toxic contaminants in spills of petroleum hydrocarbons (oil).

scholarly journals Characterization of Polycyclic Aromatic Hydrocarbons and Bioaugmentation Potential of Locally Isolated Beneficial Microorganisms Consortium for Treatment of Tar-Balls

2021 ◽  
Vol 19 (3) ◽  
pp. 246-254
Author(s):  
Nur Zaida Zahari ◽  
◽  
Erma Hani Baharudzaman ◽  
Piakong Mohd Tuah ◽  
Fera Nony Cleophas ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Microbial Population ◽  
Oil Spills ◽  
Beneficial Microorganisms ◽  
Tar Balls ◽  
Polycyclic Aromatic ◽  
Biodegradation Study ◽  
Bioreactor System

Oil spills are one of the environmental pollutions that commonly occur along coastal areas. Tar-balls are one of the products that come from the oil spill pollution. In this study, tar-ball pollution was monitored at 10 points along the coastline of Marintaman Beach in Sipitang, Sabah, Malaysia. This research determined the physical characteristics, composition, and concentration of Polycyclic Aromatic Hydrocarbons (PAHs) in tar-balls. The total number of tar-balls collected was 227 (n=227). The tar-balls were observed in various shapes and the sizes were recorded in the range of 0.1 cm to 6.9 cm. The composition and concentration of Polycyclic Aromatic Hydrocarbons (PAHs) in the outer and inner layer of tar-balls were determined. The results showed that the main Polycyclic Aromatic Hydrocarbons (PAHs) compounds were found in inner layers of the tar-balls with benzo (g,h,i) perylene (72.26 mg/kg), flourene (59.87 mg/kg), dibenzo (a,h) anthracene (44.48 mg/kg), indeno (1,2,3-c,d) pyrene (78.18 mg/kg), and benzo (e) fluoranthene (45.70 mg/kg), respectively. Further research was done with the bioaugmentation study of locally isolated beneficial microorganisms (LIBeM) consortium for treatment of tar-balls in an Aerated Static Pile (ASP) bioreactor system. The results showed that, after 84 days of treatment, this consortium, consisting of C. tropicalis-RETL-Cr1, C. violaceum-MAB-Cr1, and P. aeruginosa-BAS-Cr1, was able to degrade total petroleum hydrocarbon (TPH) by 84% as compared to natural attenuation (19%). The microbial population of this consortium during the biodegradation study is also discussed in this paper.

scholarly journals Assessment of the biodegradation capacity of Azolla on polycyclic aromatic hydrocarbons in crude oil

2018 ◽  
Vol 20 (3) ◽  
pp. 465-470
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Crude Oil ◽  
Aromatic Hydrocarbons ◽  
Oil Spills ◽  
Dependent Manner ◽  
Measured Intensity ◽  
Azolla Filiculoides ◽  
Concentration Dependent Manner ◽  
Plant Samples ◽  
Polycyclic Aromatic

<p>In this study, the potential use of Azolla filiculoides Lam. for the bioremediative solution to polycyclic aromatic hydrocarbon (PAH) pollution due to crude oil spills in freshwater was investigated. The plants were grown in nitrogen-free Hoagland nutrient solution media containing 0.05%, 0.1%, 0.2%, 0.3%, 0.4% and 0.5% crude oil by volume for 15 days under greenhouse conditions. Relative growth rates of A. filiculoides decreased in the presence of crude oil in a concentration-dependent manner. The probable influence of A. filiculoides on the biodegradation of polycyclic aromatic hydrocarbons was measured by using synchronous UV fluorescence spectroscopy. GC-MS analysis were also carried out to elucidate the behavior of the oil in experimental and control samples. Although 1-2 rings PAHs have not been encountered in control or plant samples, the measured intensity for 3-4 ring PAHs in plant samples was remarkably lower in comparison to the control. Furthermore, these results demonstrated that the predominant efficacy of the A. filiculoides was for 3-4 ring PAHs at the range 0.05 to 0.2% crude oil concentrations. It could be concluded that the bioremediative potential of A. filiculoides for the removal of polycyclic aromatic hydrocarbons strongly depends on the amount of oil in the contaminated water resource. In other words, A. filiculoides could be used more effectively after the removal of excess crude oil in the spilled freshwater areas.</p>

scholarly journals Polycyclic Aromatic Hydrocarbons (PAH) in Fingerlings of Clarias gariepinus (Burchell, 1822) to Petroleum

2018 ◽  
Author(s):  
Christopher Onyemaechi Ezike ◽  
Felix Okaliwe Echor
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Crude Oil ◽  
Aromatic Hydrocarbons ◽  
Oil Spills ◽  
Clarias Gariepinus ◽  
Diesel Oil ◽  
Exposed Fish ◽  
Significant Difference ◽  
Polycyclic Aromatic ◽  
Experimental Treatments

One hundred and twenty (120) fingerlings of Clarias gariepinus (mean weight: 0.96 &plusmn; 0.1g) were randomly exposed to 4 experimental treatments of petroleum, based on LC50 values (6.4mg/L of crude oil, 8.7mg/L of petrol, 8.0mg/L of kerosene and 7.8mg/L of diesel oil) and replicated thrice, to determine polycyclic aromatic hydrocarbons (PAH) in exposed fish for 96 h. There was no significant difference (P &gt; 0.05) in total (PAHs) between crude oil (97.1 ng/uL) and diesel (97.2 ng/uL) exposed fish and also between petrol (53.2 ng/uL) and kerosene (49.6 ng/uL) exposed fish, but there was a significant difference (P &lt; 0.05) in PAH levels of the crude oil/diesel exposed -groups of fish compared to petrol/kerosene exposed -groups of fish (97.1/97.2 and 53.2/49.6 ng/uL). Naphthalene correlated positively to benzo a anthracene (r=0.672, (P &lt; 0.05), benzo b fluoranthene (r=0.681, P &lt; 0.05) and chrysene (r=0.615, P &lt; 0.05) but did not correlate to fluorene. Benzo a anthracene correlated positively to benzo a pyrene (r=0.578, P &lt; 0.05), phenathrene (r=0.685, P &lt; 0.05) but did not correlate to acenaphthene. Fluorene correlated positively to benzo a pyrene (r=0.695, P &lt; 0.05) but did not correlate to chrysene. Chrysene correlated positively to dibenzo a,h, pyrene (r=0.658, P &lt; 0.05) to phenathrene and benzo b fluoranthene (r=0.659, P&lt; 0.05). Indeno 123 cd- pyrene and fluranthene however did not correlate to other PAHs except naphthanene, acenaphthene and acenaphthylene. The level of PAH in fish may translate to the toxicity effect since crude oil and diesel with lower LC50 (6.4 and 7.8 mg/L)&nbsp;&nbsp; deposited greater PAH than kerosene and petrol with higher LC50 (8.7 and 8.0 mg/L) in fingerlings of C. gariepinus. High risk to cancer disorders may occur in exposed fish to petroleum with high incidence of fluorene , anthracene, pyrene and benz a anthracene which correlated positively to benzo a pyrene which provide some basis for predicting impact of oil spills on fingerling population.

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