Metals occur naturally in the earth's crust, and their contents in the environment can vary
between different regions resulting in spatial variations of background concentrations. The …

Heavy metals are defined in many ways, based on various factors such as density and
atomic weight. Some of the heavy metals are essential as nutrients for humans such as iron …

Some heavy metals have bio-importance as trace elements but the biotoxic effects of many
of them in human biochemistry are of great concern. Hence, there is a need for proper …

Metals And Metalloids Are Ubiquitous Environmental Constituents And Cannot Be Broken
Down To Non-Toxic Forms By The Biological System. Once The Ecosystem Is Contaminated …

Heavy metals (HMs) are natural environmental constituents, but their geochemical
processes and biochemical equilibrium have been altered by indiscriminate use for human …

Metals, a major category of globally distributed pollutants, are natural elements that have
been extracted from the earth and harnessed for human industry and products for …

The contamination chain of heavy metals almost always follows cyclic order in the
environment as industry, atmosphere, soil, water, foods and human. As it is clear that chronic …

Heavy metals are individual metals and metal compounds that can impact human health.
Eight common heavy metals are discussed in this brief: arsenic, barium, cadmium …

Cadmium (Cd) is a heavy metal belonging to the group of the main chemical pollutants of
the natural and occupational environment in economically developed countries. The …

Heavy metals are chemical elements with unique properties that are toxic even in low
concentrations and affect human health with different functions. Agricultural and industrial …