Heavy metals as a threat

Due to anthropogenic activity, most vulture species are threatened. Neophron percnopterus, the Egyptian vulture, is a vulture species with a declining population. One of the most important factors threatening the species is exposure to chemicals. The second largest population of this bird species is found in Turkey. Accumulation of heavy metals for this species has not been investigated. The aim of this study was to detect and measure As, Cd, Cr, Cu, Hg, Ni, Pb, and Zn values in the feathers of Neophron percnopterus.

8p dolomite36 30-12-2021 13 0   Download

The present article portrays the procedures of the mode of arrival of overwhelming metals into amphibian conditions, their sources, classes, and use by plants and creatures, natural way of life connections, biomagnification, poisonous quality and recuperation from the biological system separated with their eco-physiological dangers postured to the life forms.

4p trinhthamhodang1215 23-09-2020 9 1   Download

Accelerated exploitation of oil and gas resources planned and implemented by ONGC and BGEIPL in west coast offshore region would result into stress particularly on marine environment. The long term physical, chemical and biological changes due to routine discharges from offshore installations can best be assessed through a study on accumulation of hydrocarbons and heavy metals in fishes, plankton and sediments which together form biotic and abiotic components of marine environment.

10p chauchaungayxua6 26-06-2020 15 2   Download

Heavy metal is a general technical term that applies to the group of metals and metalloids with density greater than 4±1 g cm-3 or elements having atomic weight more than 20. Heavy metals are considered toxic to living organisms and even trace metals that are considered essential for life can be toxic when present at excessive level, impair important biochemical process and also pose threat to human health, plant growth and animal life. The heavy metals, As, Cd, Cr, Ni and Pb were found accumulated in seeds collected from various sites.

7p trinhthamhodang1213 02-06-2020 16 0   Download

Water-borne diseases have been estimated to cause more than two million deaths and four billion cases of diarrhea annually. Water-borne pathogenic organisms include bacteria, protozoa, and viruses. Heavy metal contamination of water is also a potential threat to human health. This study aimed to detect contamination of potable water with protozoal and bacterial pathogens as well as heavy metals in Gharbiya governorate in the middle of the Nile Delta, Egypt. Therefore, this study was conducted on water samples from 3 different localities in Gharbiya governorate throughout the year 2014.

14p kequaidan1 16-11-2019 39 1   Download

As discussed above, the HSA first assessed Uganda‟s health system by each of the six building blocks – providing findings, including strengths, weaknesses, opportunities, and threats for each building block. Next, the HSA consolidated the building block-specific findings and analyzed cross-cutting issues that emerged across the building blocks (health system-wide issues) and presented cross-cutting findings. Based on these, the last chapter of the report provides recommendations for strengthening the Ugandan health system. These are listed and summarized here at a high level only.

36p nhamnhiqa 01-03-2013 38 1   Download