Toxic metalloid

Ebook "Plant-based remediation processes (Soil biology, Volume 35)" is on the recent advances of technologies using green plants for remediation of various metals and metalloids. Topics include biomonitoring of heavy metal pollution, amendments of higher uptake of toxic metals, transport of heavy metals in plants, and toxicity mechanisms. Further chapters discuss agro-technological methods for minimizing pollution while improving soil quality, transgenic approaches to heavy metal remediation and present protocols for metal remediation via in vitro root cultures.

304p manmanthanhla0201 26-02-2024 5 1   Download

Part 1 book "Veterinary toxicology for Australia and New Zealand" includes content: Introduction and definitions; essentials of toxicokinetics for veterinary practitioners; emergency care and stabilization of the poisoned patient; antidotes; vulnerable patients; sample collection, handling, and submission in toxicology; poisons by toxic action; insecticides and acaricides; molluscicide; vertebrate pesticides; herbicides and fungicides; human pharmaceuticals; household foods and products; metals; metalloids.

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Considerable interest is continuing to be shown in the speciation of metals, metalloids, and organometals due to the dependence of their toxicity and mobility on their chemical form. This review focuses on the speciation analysis of metals, metalloids, and organometals by solid phase extraction before spectrometric detection, and all aspects of analytical speciation such as determination of oxidation states and organometallic compounds. Some applications of speciation of metals and metalloids are also presented and discussed in this review.

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Arsenic is a widely distributed metalloid compound that has biphasic effects on cultured cells. In large doses, arsenic can be toxic enough to trigger cell death. In smaller amounts, non-toxic doses may promote cell proliferation and induces carcinogenesis.

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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.

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Arsenic (As) is a toxic metalloid found ubiquitously in the environment and widely considered an acute poison and carcinogen. However, the molecular mechanisms of the plant response to As and ensuing tolerance have not been extensively characterized.

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The Baltic Sea is a unique basin, being productive with intensive fishing potential and has therefore been the object of many studies. It is a brackish, nontidal, relatively shallow and semi-enclosed sea. The Baltic is located at a high latitude, hence one of its characteristic features is ice. Another unique geographical pattern are the archipelagos located off the coast of Stockholm which consist of more than 25 000 islands. The relative ionic concentration of toxic substances e.g. chemical elements is generally higher in the low-saline Baltic Sea than compared to the North Sea....

767p phoebe75 01-02-2013 41 5   Download