Assessment of heavy metals by sediment quality guideline in surficial sediments of Abu Qir Bay southeastern mediterranean sea, Egypt

2014 ◽  
Vol 73 (7) ◽  
pp. 3603-3609 ◽  
Author(s):  
Maha Ahmed Mohamed Abdallah ◽  
Adel Amer Mohamed
Keyword(s):  
Heavy Metals ◽  
Mediterranean Sea ◽  
Sediment Quality ◽  
Surficial Sediments ◽  
Sediment Quality Guideline ◽  
Quality Guideline ◽  
Abu Qir Bay

scholarly journals Comparative trace element trends in Posidonia oceanica and its sediments along the Turkish-Mediterranean coast

2021 ◽  
Author(s):  
Rafet Cagri OZTURK ◽  
Kenan Gedik ◽  
Ahmet Şahin ◽  
Yaşar Özvarol ◽  
Erhan Mutlu
Keyword(s):  
Trace Element ◽  
Mediterranean Sea ◽  
Eastern Mediterranean ◽  
Sediment Quality ◽  
Posidonia Oceanica ◽  
Mediterranean Coast ◽  
Sediment Quality Guideline ◽  
Quality Guideline ◽  
The Mean ◽  
Positive Correlations

Abstract Concentrations of eight trace elements (V, Cr, Ni, Cu, Zn, As, Cd, and Pb) were investigated in Posidonia oceanica blades and in the sediments sampled from 23 stations along the Turkish-Mediterranean Sea coast. Trace element (TE) concentration in both sediment and P. oceanica showed a statistically significant distribution among sampling stations. Most of the TE concentration in samples varied remarkably among stations without a consistent trend. Concentrations of Zn, Cd, Cu, and Pb in sediment of all of the sampling stations were determined as non-polluted based on the comparison with the sediment quality guideline index. More than quarter of the sampling stations were found as moderately or heavily polluted for Cr, Ni, and As. The mean TE concentrations found in the sediment sample in the present study were similar to the concentrations reported from the different parts of the eastern Mediterranean Sea. TE concentrations in P. oceanica were generally lower compared to the concentrations in the sediment except for Cd, Zn, and Cu. While positive correlation was found for Ni concentrations between sediment and P. oceanica samples, negative correlation was detected for V, Cr, Zn, Cu, As, and Cd concentrations between sediment and P. oceanica. The highest bioaccumulation factor in P. oceanica was calculated for Cd. The study area of the present study, especially the western sites (provinces of Antalya and Muğla) hosts millions of tourists annually and under the influence of intensive human activities in summer. Thus, coastal waters are heavily exposed to TEs and significantly positive correlations were detected between the anthropogenic TE pollutants (As, Cd, Cu, Zn, Pb, and V) and natural sourced TE (Ni and Cr).

scholarly journals Accumulation and distribution of heavy metals in surface sediments of a semienclosed basin in the southeastern Mediterranean Sea, Egypt

2007 ◽  
Vol 8 (1) ◽  
pp. 31 ◽  
Author(s):  
M.A.M. ABDALLAH
Keyword(s):  
Heavy Metals ◽  
Mediterranean Sea ◽  
Surface Sediments ◽  
Geoaccumulation Index ◽  
Enrichment Factors ◽  
Mediterranean Coast ◽  
Surficial Sediments ◽  
Entire Area ◽  
Metal Contents ◽  
Alexandria City

The distribution, enrichment and accumulation of heavy metals in the surficial sediments of the Alexandria City Eastern Harbour (Mediterranean coast of Egypt) were investigated. Surface sediments (in the <63mm fraction) collected from 12 sites representing the entire area of the harbour, were analyzed by AAS for Cd, Cu, Zn, Cr, Pb and Al. Metal contents were compared with literature data to assess the pollution status of sediments. Enrichment factors (EFs) and the geoaccumulation Index (Igeo) were calculated as a criterion of possible contamination.

BSAFs for freshwater fish and derivation of a sediment quality guideline for PCBs in the Rhone basin, France

2011 ◽  
Vol 12 (2) ◽  
pp. 241-251 ◽  
Author(s):  
Marc Babut ◽  
Christelle Lopes ◽  
Sébastien Pradelle ◽  
Henri Persat ◽  
Pierre-Marie Badot
Keyword(s):  
Freshwater Fish ◽  
Sediment Quality ◽  
Sediment Quality Guideline ◽  
Quality Guideline

scholarly journals Geochemical Assessment of Trace Metal Distribution and Contamination in the Surface Sediments of the Coast of Okinawa Island, Japan

2016 ◽  
Vol 6 (1) ◽  
pp. 1
Author(s):  
Ibrahima M'Bemba Diallo ◽  
Hiroaki Ishiga
Keyword(s):  
Environmental Protection Agency ◽  
Surface Sediments ◽  
Sediment Quality ◽  
Contamination Factor ◽  
Sediment Quality Guideline ◽  
Okinawa Island ◽  
X Ray ◽  
The Us ◽  
Quality Guideline ◽  
Us Epa

In this study, sediment samples were collected from the Awase tidal, the Minamigusuku, and Nakagusuku areas located in the Okinawa Island. The collected samples were analyzed using X-ray fluorescence to determine their geochemical compositions and distribution, and to assess the sediment quality in the study areas. Contamination factor (CF), geoaccumulation index (Igeo), and the United State Environmental Protection Agency Sediment Quality Guideline (US EPA SQG) were used to assess the sediment quality. The results show that the highest average concentrations of As (11mg/kg), Pb (8 mg/kg), Zn (19 mg/kg), Cu (6 mg/kg), and Cr (14mg/kg) occurred in the Minamigusuku area. The CF and Igeo values, and the US EPA SQG indicate that among the selected trace metals only As displays significant values in the study areas. The CF values of As in the Minamigusuku area show moderate enrichment, and in this same area, the Igeo values of As present significant values, ranging from moderate to considerable contaminations, implying a possible effect on the biota in this location. Compared to the US EPA SQG, the Awase tidal flat and Nakagusuku areas are moderately polluted, whereas Minamigusuku is heavily polluted, suggesting that As may possible impact the biota in these areas. Consequently, for a better sustainable development of the coast of  Okinawa Island , a regular monitoring and assessment of study areas, particularly the Minamigusuku area, is necessary to determine over time the concentration of As.

scholarly journals Elevated trace elements in Posidonia oceanica and Cymodocea nodosa at six Mediterranean volcanic seeps

2018 ◽  
Author(s):  
A.K. Mishra ◽  
R. Santos ◽  
J.M. Hall-Spencer
Keyword(s):  
Sediment Quality ◽  
Posidonia Oceanica ◽  
Marine Biota ◽  
Cymodocea Nodosa ◽  
Reference Sites ◽  
Reference Levels ◽  
Sediment Quality Guideline ◽  
Adverse Impacts ◽  
Seawater Ph ◽  
Quality Guideline

AbstractSeagrasses form important habitats around shallow marine CO2 seeps, providing opportunities to assess trace element (TE) accumulation along gradients in seawater pH. Here we assessed Cd, Cu, Hg, Ni, Pb and Zn levels in sediment and seagrasses at six CO2 seeps and reference sites off Italy and Greece. Some seep sediments had much higher concentrations of TEs, the extreme example being Cd at 43-fold above reference levels. Sediment Quality Guideline (SQG) scores indicated that three seeps had sediment TEs levels likely to have “Adverse impacts” on marine biota; namely Vulcano (for Hg), Ischia (for Cu) and Paleochori (for Cd and Ni). SQG indicated seep sediments of Italian seeps were adversely affected by Cu and Hg, whereas Greek CO2 seeps were affected by Cd and Ni. An increase in sediment TEs levels positively corelated with higher levels of TEs in seagrass roots of Posidonia oceanica (Zn and Ni) and Cymodocea nodosa (Zn). Differences in the bioavailability and possible toxicity of TEs helps explain why seagrasses were abundant at some CO2 seeps but not others.

Equilibrium Partitioning Approach to Define Sediment Quality Guideline of Some Metals in Chao Phraya Estuary, Thailand

2015 ◽  
Vol 12 (3) ◽  
pp. 23-31 ◽  
Author(s):  
Thanakorn Jiwarungrueangkul ◽  
Sirichai Dharmavanij ◽  
Penjai Sompongchaiyakul ◽  
Narumol Kornkanitnan
Keyword(s):  
Sediment Quality ◽  
Equilibrium Partitioning ◽  
Sediment Quality Guideline ◽  
Quality Guideline
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