Detection of Heavy Metals Residues in Fish and Shellfish

2018 ◽  
Vol 34 (2) ◽  
pp. 255-264
Author(s):  
Nariman Helmy ◽  
Ahmed Maarouf ◽  
Mohamed Hassan ◽  
Faten Hassanien
Keyword(s):  
Heavy Metals ◽  
Fish And Shellfish

Bioaccessibility and content of Se in fish and shellfish widely consumed in Mediterranean countries: influence of proteins, fat and heavy metals

2014 ◽  
Vol 65 (6) ◽  
pp. 678-685 ◽  
Author(s):  
Jean Rafael Marval-León ◽  
Fernando Cámara-Martos ◽  
Manuel Angel Amaro-López ◽  
Rafael Moreno-Rojas
Keyword(s):  
Heavy Metals ◽  
Mediterranean Countries ◽  
Fish And Shellfish

Human health risk assessment of heavy metals in tropical fish and shellfish collected from the river Buriganga, Bangladesh

2015 ◽  
Vol 22 (20) ◽  
pp. 15880-15890 ◽  
Author(s):  
Md. Kawser Ahmed ◽  
Mohammad Abdul Baki ◽  
Md. Saiful Islam ◽  
Goutam Kumar Kundu ◽  
Md. Habibullah-Al-Mamun ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Health Risk ◽  
Human Health ◽  
Health Risk Assessment ◽  
Human Health Risk ◽  
Human Health Risk Assessment ◽  
Tropical Fish ◽  
Fish And Shellfish

Heavy metals concentrations in fish and shellfish from eastern Mediterranean Sea: Consumption advisories

2013 ◽  
Vol 53 ◽  
pp. 33-37 ◽  
Author(s):  
Chiara Copat ◽  
Giovani Arena ◽  
Maria Fiore ◽  
Caterina Ledda ◽  
Roberto Fallico ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Mediterranean Sea ◽  
Eastern Mediterranean ◽  
Eastern Mediterranean Sea ◽  
Fish And Shellfish

scholarly journals Evaluation of Heavy Metals Contamination Level (Mercury, Lead, Cadmium) in Fishery Products Exported From Senegal

2019 ◽  
Vol 8 (1) ◽  
pp. 49
Author(s):  
Abdoulaye DIOUF ◽  
Jean FALL ◽  
Abdou Samath DIOUF ◽  
Mame Mor NDOUR ◽  
Diegane NDONG
Keyword(s):  
Heavy Metals ◽  
Atomic Absorption Spectrophotometry ◽  
Mercury Content ◽  
International Standards ◽  
Industrial Wastes ◽  
Contamination Level ◽  
Cadmium Content ◽  
Large Species ◽  
Lead And Cadmium ◽  
Fish And Shellfish

Domestic, hospital and industrial wastes are major generators of heavy metals. These wastes added to those found in nature pollute the aquatic environment through the discharge. Heavy metals are toxic to living organisms. They accumulate in these beings. Humans get intoxicated by ingesting fish species contaminated by heavy metals. To evaluate the risk of intoxication of humans, it is proposed to determine the mercury, lead and cadmium content of fish and shellfish processed in Senegal. The contamination level of mercury content is determined by the DMA 80. The lead and cadmium content in the species is made by atomic absorption spectrophotometry (AAS). The results obtained show that among the metals measured, lead has the highest content in all species. This is due to its abundance in the waste. Lead is more concentrated in species that live on the bottom. Large species concentrate high levels of mercury due to accumulation and biomagnification. Cadmium is the most concentrated in invertebrates, most of whose consumption consists of plants. The levels of all heavy metals measured in species do not exceed national and international standards. But as metals accumulate, monitoring is needed to limit poisoning.

scholarly journals Lead, Mercury and Cadmium in Fish and Shellfish from the Indian Ocean and Red Sea (African Countries): Public Health Challenges

2020 ◽  
Vol 8 (5) ◽  
pp. 344 ◽  
Author(s):  
Isidro José Tamele ◽  
Patricia Vázquez Loureiro
Keyword(s):  
Public Health ◽  
Heavy Metals ◽  
Quality Control ◽  
Red Sea ◽  
Monitoring And Control ◽  
African Countries ◽  
Public Health Challenges ◽  
The Indian Ocean ◽  
And Control ◽  
Fish And Shellfish

The main aim of this review was to assess the incidence of Pb, Hg and Cd in seafood from African countries on the Indian and the Red Sea coasts and the level of their monitoring and control, where the direct consumption of seafood without quality control are frequently due to the poverty in many African countries. Some seafood from African Indian and the Red Sea coasts such as mollusks and fishes have presented Cd, Pb and Hg concentrations higher than permitted limit by FAOUN/EU regulations, indicating a possible threat to public health. Thus, the operationalization of the heavy metals (HM) monitoring and control is strongly recommended since these countries have laboratories with minimal conditions for HM analysis.

Sampling and analysis of the air-water interface with SEM and EDS of microlayers

1989 ◽  
Vol 47 ◽  
pp. 1004-1005
Author(s):  
Randall W. Smith ◽  
John Dash
Keyword(s):  
Heavy Metals ◽  
Surface Microlayer ◽  
Surface Films ◽  
Water Interface ◽  
Physical Processes ◽  
Infrared Spectroscopic Analysis ◽  
Eds Analysis ◽  
Air Water Interface ◽  
Significant Area ◽  
Bulk Chemical

The structure of the air-water interface forms a boundary layer that involves biological ,chemical geological and physical processes in its formation. Freshwater and sea surface microlayers form at the air-water interface and include a diverse assemblage of organic matter, detritus, microorganisms, plankton and heavy metals. The sampling of microlayers and the examination of components is presently a significant area of study because of the input of anthropogenic materials and their accumulation at the air-water interface. The neustonic organisms present in this environment may be sensitive to the toxic components of these inputs. Hardy reports that over 20 different methods have been developed for sampling of microlayers, primarily for bulk chemical analysis. We report here the examination of microlayer films for the documentation of structure and composition.Baier and Gucinski reported the use of Langmuir-Blogett films obtained on germanium prisms for infrared spectroscopic analysis (IR-ATR) of components. The sampling of microlayers has been done by collecting fi1ms on glass plates and teflon drums, We found that microlayers could be collected on 11 mm glass cover slips by pulling a Langmuir-Blogett film from a surface microlayer. Comparative collections were made on methylcel1ulose filter pads. The films could be air-dried or preserved in Lugol's Iodine Several slicks or surface films were sampled in September, 1987 in Chesapeake Bay, Maryland and in August, 1988 in Sequim Bay, Washington, For glass coverslips the films were air-dried, mounted on SEM pegs, ringed with colloidal silver, and sputter coated with Au-Pd, The Langmuir-Blogett film technique maintained the structure of the microlayer intact for examination, SEM observation and EDS analysis were then used to determine organisms and relative concentrations of heavy metals, using a Link AN 10000 EDS system with an ISI SS40 SEM unit. Typical heavy microlayer films are shown in Figure 3.

Nicotianamine: mediator of transport of iron and heavy metals in the phloem?

1993 ◽  
Vol 88 (3) ◽  
pp. 522-529 ◽  
Author(s):  
Udo W. Stephan ◽  
Gunter Scholz
Keyword(s):  
Heavy Metals

Association between heavy metals and depression, anxiety, and panic: A cross-sectional study

2011 ◽  
Author(s):  
Parker Woody ◽  
Michael Zhang ◽  
Craig Pulsipher ◽  
Dawson Hedges ◽  
Bruce Brown
Keyword(s):  
Heavy Metals ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Cross Sectional
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