CIRCULATION OF THE HEAVY METALS IN NATURE, CONCENTRATION OF CHEMICAL ELEMENTS IN DAILY FOOD, CHEMICAL EFFECTS ON HUMAN HEALTH AND ENVIRONMENT

2019 ◽  
Vol 9 (4) ◽  
pp. 627-634
Author(s):  
Ismajl Cacaj ◽  
◽  
Nexhdet Shala ◽  
Arsim Elshani ◽  
Bakir Kelmendi ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Human Health ◽  
Chemical Elements ◽  
Chemical Effects ◽  
Daily Food

scholarly journals Potential Source of Heavy Metals in the Geophagic Clay (Marl) and Its Implication on Human Health in NE Iraq: A Pilot Study

2021 ◽  
Vol 54 (2C) ◽  
pp. 80-87
Author(s):  
Abbas R. Ali
Keyword(s):  
Heavy Metals ◽  
Trace Elements ◽  
Human Health ◽  
Chemical Elements ◽  
Analytical Data ◽  
Health Impact ◽  
Cultural Tradition ◽  
Deficient Diet ◽  
Intentional Ingestion ◽  
Cu And Zn

Geophagy is the eating of non-food earthy matters practice (such as clay), which is performed especially in humans, to augment a scanty or mineral-deficient diet or as part of a cultural tradition. Geophagy, the intentional ingestion of clay or soil, is a prevalent practice among animals and humans, especially is more common in young ages, such as children and among pregnant women with a young age. In spite of some well documented cases, the motivations of this practice and its consequences on the status of health of the consumer are still unclear. This study focused on the source of heavy metals and its health impact because of the importance of the topic in the environmental hazards, especially as this addictive phenomenon may not be well known among families in our societies. During this study, twenty-four samples of marl were collected within the rock sequences of the Fatha Formation in the Kirkuk and Diyala, which are used in eating (mud eating disease) in these regions. The samples were subjected to laboratory studies including chemical analyses, to determine their contents of trace elements. The laboratory analytical data showed that these muds (marl) contain different concentrations of chemical elements such as (Co, Cr, Ni, Cu, and Zn) which are among the heavy toxic elements and harmful to human health. A close look at the analytical data and results of the statistical and environmental factors, it is found that the marl (geophagia) consumption in terms of its content of trace elements, poses health risks to the consumer. However, it is worth mentioning to say that Geophagia practice may contribute large levels of the most beneficial elements such as Ca, Fe, K, Na, Cu, and Zn, supplying in demand mineral nutrients in the human body.

Effects of heavy metals pollution on human health

2020 ◽  
Vol 23 (11) ◽  
Author(s):  
Aqeel M. Ali Al-Lami ◽  
Saba Riad Khudhaier ◽  
Omer AbdulKareem Aswad
Keyword(s):  
Heavy Metals ◽  
Human Health ◽  
Metals Pollution ◽  
Heavy Metals Pollution

scholarly journals Technologies Developing in Heavy Metals’ Removal from Water

Water ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 860
Author(s):  
Konstantinos Simeonidis ◽  
Manassis Mitrakas
Keyword(s):  
Heavy Metals ◽  
Drinking Water ◽  
Water Resources ◽  
Human Health ◽  
Urban Wastewater ◽  
Heavy Metals Removal ◽  
Metals Removal ◽  
Drinking Water Resources

Elevated concentrations of heavy metals in drinking water resources and industrial or urban wastewater pose a serious threat to human health and the equilibrium of ecosystems [...]

Assessment of seasonal variations and human health risks due to heavy metals in water, soils and food crops using multi-indices approach

2021 ◽  
Vol 80 (11) ◽  
Author(s):  
Salwinder Singh Dhaliwal ◽  
Raj Setia ◽  
Vinod Kumar ◽  
Tapan Ghosh ◽  
Sagar Taneja ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Human Health ◽  
Health Risks ◽  
Seasonal Variations ◽  
Food Crops ◽  
Human Health Risks

Risk assessment of heavy metals in drinking water on the human health, Assiut City, and its environs, Egypt

2021 ◽  
Vol 14 (6) ◽  
Author(s):  
Elmontaser M. Seleem ◽  
Alaa Mostafa ◽  
Mohammed Mokhtar ◽  
Salman A. Salman
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Drinking Water ◽  
Human Health

scholarly journals SELECTIVE "STAINING" FOR ELECTRON MICROGRAPHY

1942 ◽  
Vol 76 (1) ◽  
pp. 103-108 ◽  
Author(s):  
Stuart Mudd ◽  
Thomas F. Anderson
Keyword(s):  
Heavy Metals ◽  
Cell Walls ◽  
Differential Staining ◽  
Bacterial Cells ◽  
Selective Staining ◽  
Electron Micrography ◽  
Chemical Effects ◽  
Microchemical Analysis ◽  
Cell Components ◽  
Selective Chemical

The physical basis of contrast and image formation in electron micrography is considered in relation to the possibility of recording selective chemical effects on cell components. A technology of selective microchemical analysis, equivalent to differential staining, is suggested as practicable in electron micrography. Electron pictures of bacteria after exposure to salts of heavy metals have shown the bacterial inner protoplasm, but not the cell walls, to be selectively darkened; shrinkage, coagulation, or escape of protoplasm from the injured cells may result and be recorded in the electron micrographs. Recording of the action of germicidal agents on individual bacterial cells is indicated as one promising field of application of microchemical analysis with the aid of the electron microscope.

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