Persistent Organochlorine Pollutants in the Aquatic Ecosystem of Lake Manzala, Egypt

Abbassy, M. S.; Ibrahim, Huda; Abdel-Kader, Hassan M.

doi:10.1007/s00128-003-0103-4

Cited by 40 publications

(22 citation statements)

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“…The OCP residues in the current investigation showed a high degree of persistence similar to that reported earlier by Abbassy et al (2003) in Manzala Lake and by Kelderman et al (2005) in Europe, where it was reported that the main source of DDT is probably wind-driven from tropical countries where DDT is still widely applied. This finding revealed that this issue has become a devastating problem worldwide and requires vigorous investigation and further collaboration between various research groups throughout the world.…”

Section: Discussionsupporting

confidence: 89%

Occurrence and possible fate of organochlorine pesticide residues at Manzala Lake in Egypt as a model study

Kamel¹,

Moussa²,

Abonorag³

et al. 2014

Environ Monit Assess

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Persistence of the residue of organochlorine pesticides (OCPs) became a great danger to our environment long ago. In this study, the persistence of OCPs at Manzala Lake in Egypt was determined. Four different sites were investigated: the El-Gamel, El-Kowar, El-Rasoah, and Janb El-Timsah regions. Among these, the El-Kowar region had the highest concentration of total OCPs in the sediment samples when compared to other regions during both 2012 and 2013. In fact, generally, the residues of OCPs in the sediment samples were significantly higher in all tested sites in comparison with other compartments. Conversely, OCP residues were undetectable in water samples at both the El-Gamel region and the El-Rasoah site in the studied seasons. The data proved that the sediment layer plays a sourcing role in OCP persistence in the aquatic ecosystem. Data analysis also indicated that there was an external source for OCP contamination in the Manzala Lake ecosystem that most likely comes from Nile Basin countries and which extends the expected half-life of these compounds. It could be exemplified by DDT, the half-life of which increased from 30 to approximately 47 years.

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Section: Discussionsupporting

confidence: 89%

Occurrence and possible fate of organochlorine pesticide residues at Manzala Lake in Egypt as a model study

Kamel¹,

Moussa²,

Abonorag³

et al. 2014

Environ Monit Assess

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“…Drain inflows are also responsible for the elevated concentrations of heavy metals (Siegel et al, 1994;Siegel, 1995), organochlorine pesticides (OCs) and polychlorinated bipheny (PCBs) (Yamashita et al, 2000;Abbassy et al, 2003;Abdallah & El-Greisy, 2006) which have been identified in water, sediment and biota. Malformations and discoloration are common within fish from the lake and these are chemically and microbially contaminated (Tennessee Valley Authority, 1997) with elevated levels of OCs and PCBs within fish tissue (Abbassy et al, 2003;Abdallah & El-Greisy, 2006).…”

Section: Nutrient Enrichment and Pollutionmentioning

confidence: 99%

“…Malformations and discoloration are common within fish from the lake and these are chemically and microbially contaminated (Tennessee Valley Authority, 1997) with elevated levels of OCs and PCBs within fish tissue (Abbassy et al, 2003;Abdallah & El-Greisy, 2006).…”

Section: Nutrient Enrichment and Pollutionmentioning

confidence: 99%

Environmental characteristics, landscape history and pressures on three coastal lagoons in the Southern Mediterranean Region: Merja Zerga (Morocco), Ghar El Melh (Tunisia) and Lake Manzala (Egypt)

et al. 2009

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“…The persistent nature of these compounds in soil and water, can adversely affect the health of pedospheric (Kammenga et al, 2000) and aquatic biocoenoses and the quality of drinking water (Kumar et al, 1995;Akhil and Sujatha, 2012). A greater tendency shown by OCIs for bioaccumulation and biomagnification in the food chains is due to their resistance to chemical and biological decay (Badawy and Wahaab, 1997;Yamashita et al, 2000;Abbassy et al, 2003). Although the applications of OCIs have been banned in many developed countries, some developing countries are still producing and using these persistent pesticides because of their low cost and versatility in controlling various insects (Tanabe et al, 1994;Monirith et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Spatial budgetary evaluation of organochlorine contaminants in the sediments of Cochin Estuary, India

Akhil

Sujatha

2014

Marine Pollution Bulletin

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a b s t r a c tThis paper presents the first detailed investigation on the residual levels of organochlorine insecticide (OCI) concentrations in the Cochin estuarine sediment. It aims in elucidate their distribution and ecological impact on the aquatic system. Concentrations of persistent organochlorine compound (OC) were determined for 17 surface sediment samples which were collected from specific sites of Cochin Estuarine System (CES) over a period of November 2009 and November 2011. The contaminant levels in the CES were compared with other worldwide ecosystems. The sites bearing high concentration of organochlorine compounds are well associated with the complexities and low energy environment. Evaluation of ecotoxicological factors suggests that adverse biological effects are expected in certain areas of CES.

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Persistent Organochlorine Pollutants in the Aquatic Ecosystem of Lake Manzala, Egypt

Cited by 40 publications

References 0 publications

Occurrence and possible fate of organochlorine pesticide residues at Manzala Lake in Egypt as a model study

Occurrence and possible fate of organochlorine pesticide residues at Manzala Lake in Egypt as a model study

Environmental characteristics, landscape history and pressures on three coastal lagoons in the Southern Mediterranean Region: Merja Zerga (Morocco), Ghar El Melh (Tunisia) and Lake Manzala (Egypt)

Spatial budgetary evaluation of organochlorine contaminants in the sediments of Cochin Estuary, India

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