Biogeochemistry of soil cadmium and the impact on terrestrial food chain contamination

Kinetics of cadmium adsorption on aluminum precipitation products formed under the influence of tannate

“…Cadmium (Cd) being more weakly bound to soil constituents compared to other trace metals is recognized as one of the most mobile trace metals circulating in the environment; it can readily enter the human food chain (McLaughlin and Singh, 1999;Kabata-Pendias, 2000;Adriano, 2001;Noonan et al, 2002;Satarug et al, 2003;Adams et al, 2004;Bergkvist et al, 2005;Krishnamurti et al, 2005). Its toxicity threatens human and animal health by causing kidney and liver dysfunction, weakening immune system, and adversely affecting reproduction (Chaney et al, 1999;Satarug et al, 2000).…”

“…Its toxicity threatens human and animal health by causing kidney and liver dysfunction, weakening immune system, and adversely affecting reproduction (Chaney et al, 1999;Satarug et al, 2000). Cadmium can enter and accumulate in soils through agricultural application of sewage sludge and phosphate fertilizers, and via other anthropological activities like land disposal of metal-contaminated municipal and industrial wastes (McLaughlin and Singh, 1999;Krishnamurti et al, 2005). soils up to 100 cm depth average 0.2 mg kg À1 and are accumulated mostly in organic-rich Ap horizon (Nriagu, 1980).…”

Mining Activities and Associated Environmental Impacts in Arid Climates: A Literature Review

“…An influx of dissolved trace elements can affect organisms like insect larvae, bivalve mollusks, and microorganisms, which in turn affect larger organisms up the food chain (Wright & Zamuda, 1987;Qiu et al, 2007). As shown in literature (Krishnamurti et al, 2005;Reglero et al, 2008;Moreno-Jimenez et al, 2009), bioaccumulation in local vegetation will directly affect local fauna by the transfer of metals from one organism to another. The level of tolerance for specific metal accumulation is species-specific, resulting in the further transfer of metals from one species to another with the impact being species specific (Moreno-Jimenez et al, 2009).…”

“…Researchers identified trends in metal uptake in vegetation and animals from trace element enriched substrata, leachates, and surface water sources (Lee, 2001;Pankakoski et al, 1994;Sánchez-Chardi & Nadal, 2007). It has been shown that metals such as Cd are of great concern because of its bioaccumulation from the consumption of vegetation (Krishnamurti et al, 2005).…”

Micronutrients and toxic trace metals in the bulk and rhizospheric soil of the spontaneous vegetation at an abandoned copper mine in Galicia (NW Spain)

“…The term rhizosphere refers to a narrow zone of soil influenced by the roots and their exudates. The extent of the rhizosphere may vary with soil type, plant species, age and many other factors (Curl and Truelove, 1986;Krishmamurti et al, 2005). The rhizosphere therefore represents a microenvironment with specific characteristics, different from those of the bulk soil.…”