Monitoring of PAHs and alkylated PAHs in aquatic organisms after 1 month from the Solar I oil spill off the coast of Guimaras Island, Philippines

2009 ◽  
Vol 165 (1-4) ◽  
pp. 501-515 ◽  
Author(s):  
Seiichi Uno ◽  
Jiro Koyama ◽  
Emiko Kokushi ◽  
Harold Monteclaro ◽  
Sheryll Santander ◽  
...  
Author(s):  
G.A. Burton ◽  
E.C. Cervi ◽  
G. Rosen ◽  
M. Colvin ◽  
B. Chadwick ◽  
...  

2018 ◽  
Vol 19 (3) ◽  
pp. 343-372
Author(s):  
H. Amine ◽  
◽  
J. Halwani ◽  
E. Gomez ◽  
F. Merhabi ◽  
...  

Contamination of the marine environment is associated with continental activities, marine activities and accidental spills. Providing answers to the origin of the contamination ofthe aquatic environment by PAHsis an objective of the present work. The originality of this work is to study pollutants in two types of matrix (water and sediments) during2 seasons (dry and wet) for an environmental monitoringof 6 years. This study provides a more complete overview of the state of contaminationin three coastal rivers, their transition zones and harborsin the Eastern Mediterranean following the Jiyyeh oil spill in 2006.Contaminantsconcentrations wereexpressed asthe sum of the 16 PAHs classified as prority substances by the United StatesEnvironmental Protection Agency(US-EPA). Overall,contamination was noted for all the analyzedsites. Oil spill seem to be one of the main sources of pollution in the area, as the highest levels of PAH(> 9000 ng.g-1s.w&> 8000 ng.L-1) were reported in the coastal environment of the three rivers and harbors.High levels of PAHswere also observed in rivers transitional zones, revealing the importance of terrestrial inputs (untreated wastewater discharge, leachate, solid wastes, etc.).Comparing the PAHsconcentrations measured in the sediments of the sitesanalyzed with the empirical sediment quality criteria "SQG" for the support of the general assessment of sediment toxicity, we can notice that some individual PAHand their sum can present a significant ecotoxicological risk to aquatic organisms. Further research through monitoring campaigns and toxicity tests is encouraged, as the exposure of the resident aquatic organisms and human population to these chemicals might be expected to increase over the years.


2001 ◽  
Vol 2001 (1) ◽  
pp. 435-439
Author(s):  
Adam Moles

ABSTRACT Recent advances in oil toxicity research may well alter the way oil spill response decisions are made. Those responding to spills should be aware of the limitations surrounding the use of acute toxicity data to predict even short-term oil effects. Many animals previously classified as tolerant of short-term oil exposure, such as fish eggs and benthic organisms, are just as or much more sensitive than pelagic fishes to chronic exposures. Toxicity bioassays proved to be of limited value in predicting the long-term damage from the Exxon Valdez oil spill because such toxicity information only measured mortality to water-accommodated fractions of fresh oil over a 96-hour period. During the spill, many of the aquatic organisms were exposed to weathered oil resolubilized from nearshore sediments rather than to fresh oil in the water column. Oil allowed to sequester in the sediments of streams, mussel beds, and estuaries provided a persistent source of contamination in natal and nursery fish habitats over several years. Eggs, larvae, and juveniles that inhabit these habitats are especially sensitive to long-term exposure to sediment accommodated weathered oil. Spill response should be geared toward preventing oil from reaching streams, fine sediment beaches, and estuaries that serve as critical fish habitats rather than solely toward reducing initial mortalities.


2019 ◽  
Vol 65 (4) ◽  
pp. 462-474 ◽  
Author(s):  
N. V. Neverova ◽  
T. Ya. Vorobyeva ◽  
A. V. Chupakov

In order to assess the current state of the ecosystem of the southeast of the Onega Bay of the White Sea affected by fuel oil spill in 2003, the accumulation of petroleum hydrocarbons was analyzed by the dominant species of aquatic organisms collected on the littoral of the most polluted coast in the areas of Purnem and Lyamts villages. In 2012, samples of aquatic organisms were taken in an area where all the species discussed in this work are represented on a small area: bivalved mollusks, attached molluscs, gastropods, polychaetes. In 2013 and 2018, samples of hydrobionts were additionally selected, in the three-kilometer strip of the coast on either sides of the givin point. In 2012 and 2013, high concentrations of HC in the tissues of bivalves were recorded. In 2018, the concentrations of hydrocarbons in the tissues of the studied hydrobionts were comparable to background values. A non-parametric test of Mann-Whitney showed a significant decrease in НС in mussel tissue from 2013 to 2018, at a significance level of 0.05. Taking into account the low levels of HC in the aqueous medium (less than 1 MPC of fishfarm) and in bottom sediments (from 0.34 to 9.03 mg/kg, the median of 1.41 mg/kg) in 2018, and is comparable with the background contents of hydrocarbons in tissues of aquatic organisms. We can conclude that after 15 years of the fuel oil spill, the condition of the Cape Deep ecosystem in terms of the content of hydrocarbons returns to the baseline state, continuing emissions of oil-sand lumps do not adversely affect the ecosystem. Based on the work done, it can also be concluded that ecotoxocological methods are priority in assessing the prolonged (or delayed) accidental impact of heavy petroleum products on aquatic ecosystems. The conclusion about the presence or absence of a negative impact on the aquatic ecosystem of hydrocarbons, based solely on the analysis of abiotic components, may not be sufficiently informative because it does not take into account the accumulative and deferred effects, especially manifested in the cold Arctic waters.


2018 ◽  
Vol 7 (3.34) ◽  
pp. 58
Author(s):  
Sathiyamoorthy V ◽  
Arumugam K ◽  
Arun Pragathish M ◽  
Barath B.N ◽  
Baskar M ◽  
...  

This project work is implemented based on the public issue which has overcome by our people on January 2017 at Ennore Chennai, Tamilnadu, India. The oil skimmer is used to separate oil, from mixtures of aqua and oil. It causes highly acidic alkaline and salty environment remains a great challenge to aquatic organisms and also pollutes the coastal areas. Every year 706 million gallons of waste oil enters the water resources and pollute the environment. Sea water has been polluted due to oil spillage; it also affects the water bodies. If the oil spill increases it results in serious damage to environment. About 90% of contaminated oil can be removed by continuous separation of oil by skimmer belt. This set-up uses polyurethane belt, bearing, supporting L-angle frame, EN 19 Rod & Scraper. This work implemented to improve the separation efficiency of the skimmer belt at manual speeds.  


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