Marine fish and shellfish are primary sources of human exposure to mercury, a potentially toxic metal, and selenium, an essential element that may protect against mercury bioaccumulation and toxicity. Yet we lack a thorough understanding of Hg and Se patterns in common marine taxa, particularly those that are commercially important, and how food web and body size factors differ in their influen...

Mercury is a relatively well-studied pollutant because of its global distribution, toxicity, and ability to bioaccumulate and biomagnify in food webs: however, little is known about bioaccumulation and toxicity of Hg in turtles. Total Hg (THg) concentrations in blood were determined for 552 turtles representing four different species (Chelydra serpentina, Sternotherus odoratus, Chrysemys picta,...

Technology has improved human quality of life but it caused several impacts also, due to the various contaminants released in the environment. Among these contaminants, mercury is a major concern because of its high toxicity and ubiquity in the biosphere, being classified as a global pollutant. It can occur in different forms (i.e. soluble, gaseous or solid) and chemical species (e.g. Methylmer...

Mercury or mercury (Hg) is a type of metal as an organic and inorganic compound that can be found in nature spread rocks, ores, soil, water air. the body detected biological materials such urine, blood, breast milk hair. This study aims to analyze content toxicity samples hair, urine with various analytical methods including CV-AAS, AAS, CV-AFS, ICP-MS, FI-CV-AAS, Analyzers. Data collection was...

This study assessed the potential uptake of soil-contaminated heavy metals by Azolla pinnata and Lemna gibba in combination with without arbuscular mycorrhizal fungi (AMF) traditional improved rice varieties. Total levels cadmium (Cd), lead (Pb), mercury (Hg), arsenic (As) soil, roots, shoots, grains, A. pinnata, L. were estimated using ICP-MS. The percentage colonization AMF-inoculated AMF-uni...

Relationships between Se and Hg in erythrocytes, and between these indices and intakes of fish and other foods, were studied as an adjunct to the British National Diet and Nutrition Survey (NDNS) of young people aged 4-18 years. Hg was measured in 965 packed erythrocyte samples by inductively coupled plasma mass spectrometry. Fe measurements permitted the calculation of whole-blood Hg. Erythroc...

major hazardous environmental pollutants. MeHg is easily absorbed from the intestine, and transported into the brain across the blood-brain barrier. It has been demonstrated that MeHg neurotoxicity may be modulated by dysfunction of astrocytes such as disturbing ion homeostasis and the uptake of glutamate [a major excitatory transmitter of the central nervous system (CNS)] in cultures, since gl...

Different concentrations of selected heavy metals in the form of cadmium chloride (CdCl2), copper sulphate (CuSO4), lead nitrate (Pb (NO3)2) and mercuric nitrate (Hg (NO3)2) were tested against immature and mature stage of C. pipiens to assess the toxicity, LC50, total carbohydrate and lipid content. The survival potential of 2 instar larvae was highly affected by the contamination with the tes...