Distribution and Sources of Polycyclic Aromatic Hydrocarbons Around a Petroleum Refinery Rejection Area in Jarzouna-Bizerte (Coastal Tunisia)

Zrafi-Nouira, Ines; Safi, Nimer M. D.; Bahri, Raouf; Mzoughi, Nadia; Aissi, A.; Abdennebi, Hassen Ben; Saidane-Mosbahi, Dalila

doi:10.1080/15320381003695223

Cited by 22 publications

(3 citation statements)

References 41 publications

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“…This could be the onset of ecological disturbance in areas where such activities take place. This company uses seawater for treating the oil effluents in the refining process and in the cleaning of petroleum tanks (Zrafi-Nouira et al, 2009, 2010. According to Zrafi-Nouira et al (2009, 2010, the water to be treated undergoes progressively into five successive decantation tanks, in order to extract the maximum oil, with the seawater used in the procedure being discharged in the Bizerte bay.…”

Section: Experimental Set-upmentioning

confidence: 99%

Impact of treated sewage on meiobenthic nematodes: a case study from the Tunisian Refining Industries Company

et al. 2022

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The main objective of the current study was to assess the impact of the water taken from the ‘Tunisian Refining Industries Company’ on meiobenthic nematodes, before and after a series of treatments in decantation basins followed by its discharge in Bizerte bay, Tunisia. The comparison of environmental parameters of the two types of water was clearly indicative of an improvement in the quality of treated waters after a significant reduction in their loads in hydrocarbons. Overall, the water retained a good quality after being treated by ‘Tunisian Refining Industries Company’ before discharge in the sea. At the end of the experiment, differential responses were observed according to the richness of sediment in organic matter and hydrocarbons. Thus, it was apparent that the nematode assemblage exposed to the treated waters was closer to controls and associated to higher values of abundance, than that under untreated ones. It was also assumed that the species Microlaimus honestus De Man, 1922, Paramonohystera proteus Wieser, 1956 and Cyartonema germanicum Juario, 1972 are sensitive bioindicators of bad environmental statues and of hydrocarbon presence in the environment. On the other hand, Metoncholaimus pristiurus (Zur Strassen, 1894) Filipjev, 1918 would rather be classified as a positive bioindicative species of this type of pollutants.

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Section: Experimental Set-upmentioning

confidence: 99%

Impact of treated sewage on meiobenthic nematodes: a case study from the Tunisian Refining Industries Company

et al. 2022

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“…However the possibilities and pathways of pesticides may cause disturbance in endocrine systems as well as their endpoints in individuals still is not well understood (Ventura et al, 2016;Monteagudo et al, 2016;Marx-Stoelting et al, 2014). PAHs are generated in the processes of incomplete combustion or pyrolysis of organic matter (e.g., coal, oil, gas and wood) and traditionally have been used as tracers of burning fuels Sun et al, 2013;Da Rocha, et al, 2009) and oil refineries (Bayat et al, 2015;Zrafi-nouira et al, 2010). Antiestrogenic effects of PAHs have been reported in the literature for mollusks from contaminated areas (Gagné et al, 2002).…”

Section: Importance and Relevance Of Endocrine Disruptorsmentioning

confidence: 99%

“…Therefore, the pretreatment of environmental samples, especially for matrices such as coastal and ocean waters that have high salinities, is a real necessity. This step, nevertheless, usually takes up to 70-90 % of the analysis time (Zuloaga et al, 2012). Sample preparation for the determination and quantification of organic compounds are based on three main steps: extraction, clean up and pre-concentration.…”

Section: Techniques For Sample Preparationmentioning

confidence: 99%

Endocrine disruptors: strategies for determination and occurrence in marine environments

Cotrim¹,

Fahning²,

Rocha³

et al. 2016

RGCI

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Research examining the occurrence of endocrine disruptors (ED) in the marine environment has substantially increased. These contaminants have been observed in several environmental compartments and matrices, and they may cause severe adverse effects in humans and ecosystems. In this study more than 240 papers investigating the analytical developments regarding the analysis on ED in environmental matrices and the occurrence of these compounds were critically evaluated. Modern sample preparation procedures aiming the use of minimal sample manipulation, minimal amount of solvents and energy according to the Green Chemistry principles are widely used. The ED in marine environments occurs in trace concentrations and their quantification still represents a challenge. The effects of these contaminants in marine ecosystems are poorly understood. However, due to their large use, it is predicted that new analytical developments to deal with ED contamination will promote a large increase in the number of scientific publications in the near future. Regulations and mitigation measures for the presence of these contaminants in the environment are still scarce and need to be quickly implemented to reduce potential future adverse effects on ecosystem services of coastal environments. Cotrim et al. (2016) 300 RESUMO Pesquisas que examinam a ocorrência de interferentes endócrinos (IE) no ambiente marinho têm aumentado substancialmente. Estes contaminantes podem causar efeitos adversos em seres humanos e nos ecossistemas e têm sido observados em vários compartimentos e matrizes ambientais. Neste estudo, mais de 240 trabalhos que relataram o desenvolvimento analítico de IE em diversas matrizes e a ocorrência destes compostos no ambiente marinho foram criticamente avaliados. Procedimentos de preparo de amostra, visando a mínima manipulação, a mínima quantidade de solventes e energia de acordo com os princípios de Química Verde estão sendo amplamente utilizados. Os IE em ambientes marinhos ocorrem em concentrações traço e sua quantificação ainda representa um grande desafio. Como resultado, os efeitos desses contaminantes em ecossistemas marinhos ainda são mal compreendidos. No entanto, devido ao amplo uso destes compostos é previsto que novos desenvolvimentos analíticos para a determinação de IE irão promover um grande aumento no número de publicações científicas no futuro. Regulações e medidas mitigadoras para a ocorrência destes contaminantes ainda são bastante reduzida e precisam ser rapidamente implementadas para reduzir os futuros potenciais efeitos adversos nos serviços ecossistêmicos dos ecossistemas costeiros. Journal of Integrated Coastal Zone Management / Revista de Gestão Costeira Integrada, 16(3):299-326 (2016)

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Seasonal Distribution, Source Identification, and Toxicological Risk Assessment of Polycyclic Aromatic Hydrocarbons (PAHs) in Sediments from Wadi El Bey Watershed in Tunisia

Gdara

Zrafi

Balducci

et al. 2017

Arch Environ Contam Toxicol

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Surface sediments were collected from the Watershed of Wadi El Bey in Tunisia to evaluate the degree of polycyclic aromatic hydrocarbons (PAHs) contamination. Sediments were collected during different seasons in 14 sites that received wastes from domestic effluent, industrial discharge, and agricultural drainage wastes. Twenty-six individual PAHs were analyzed. The total PAH contents (Σ PAHs) in surface sediments showed wide variability, ranging from 6.89 ± 0.05 to 340 ± 0.1 ng g. The 4-, 5-, and 6-ring compounds were the most abundant PAHs detected at the majority of sites. Diagnostic concentration ratios between pairs of PAHs and molecular indices, calculated with the purpose of drawing information about pollution sources, indicated that PAHs were of both petrogenic and pyrolytic origins. Toxic contaminants concentrations were determined according to the numerical effect-based sediment quality guidelines (SQGs). PAH levels did not exceed the SQGs, indicating that PAHs seem to pose low and occasional toxicity risks. Total carcinogenicity and mutagenicity (TEQ and MEQ) ranged from 0.08 to 65 ng and from 0.02 to 135.0 ng g of dry weight, respectively. Among the seven carcinogenic PAHs, BaP accounted for the majority of the potency and could potentially be used as a unique indicator of PAH toxicity. This study provides a baseline to promote environmental protection programs and pollution monitoring/control in Watershed and coastal areas.

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Distribution and Sources of Polycyclic Aromatic Hydrocarbons Around a Petroleum Refinery Rejection Area in Jarzouna-Bizerte (Coastal Tunisia)

Cited by 22 publications

References 41 publications

Impact of treated sewage on meiobenthic nematodes: a case study from the Tunisian Refining Industries Company

Impact of treated sewage on meiobenthic nematodes: a case study from the Tunisian Refining Industries Company

Endocrine disruptors: strategies for determination and occurrence in marine environments

Seasonal Distribution, Source Identification, and Toxicological Risk Assessment of Polycyclic Aromatic Hydrocarbons (PAHs) in Sediments from Wadi El Bey Watershed in Tunisia

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