Arsenic round the world: a review.
TL;DR: This review deals with environmental origin, occurrence, episodes, and impact on human health of arsenic, a metalloid occurs naturally, being the 20th most abundant element in the earth's crust.
About: This article is published in Talanta.The article was published on 2002-08-16. It has received 3166 citations till now. The article focuses on the topics: Arsenic & Arsenic trioxide.
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TL;DR: Strong acids and bases seem to be the best desorbing agents to produce arsenic concentrates, and some commercial adsorbents which include resins, gels, silica, treated silica tested for arsenic removal come out to be superior.
3,168 citations
Cites background from "Arsenic round the world: a review."
...Since its isolation in 1250 a.d. by lbertus Magnus [1], this element has been a continuous center f controversy....
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...00005% of the earth’s rust, 14th in the seawater, and 12th in the human body [1]....
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...5 mg/kg, hough higher concentrations are found in finer grained argillaeous sediments and phosphorites [1,2]....
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...Bioremediation: [525,475] idney cancer as well as pigmentation changes, skin thickenng (hyperkeratosis) neurological disorders, muscular weakness, oss of appetite, and nausea [14,17,18,1]....
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...by lbertus Magnus [1], this element has been a continuous center f controversy....
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TL;DR: An overview of redox and non-redox metal-induced formation of free radicals and the role of oxidative stress in toxic action of metals is provided.
2,429 citations
TL;DR: In this paper, the role of antioxidant defence systems against arsenic toxicity is discussed, and the role role of vitamin C (ascorbic acid), vitamin E (α-tocopherol), curcumin, glutathione and antioxidant enzymes such as superoxide dismutase, catalase, and peroxidase in their protective roles against arsenic-induced oxidative stress is also discussed.
Abstract: Arsenic (As) is a toxic metalloid element that is present in air, water and soil. Inorganic arsenic tends to be more toxic than organic arsenic. Examples of methylated organic arsenicals include monomethylarsonic acid [MMA(V)] and dimethylarsinic acid [DMA(V)]. Reactive oxygen species (ROS)-mediated oxidative damage is a common denominator in arsenic pathogenesis. In addition, arsenic induces morphological changes in the integrity of mitochondria. Cascade mechanisms of free radical formation derived from the superoxide radical, combined with glutathione-depleting agents, increase the sensitivity of cells to arsenic toxicity. When both humans and animals are exposed to arsenic, they experience an increased formation of ROS/RNS, including peroxyl radicals (ROO•), the superoxide radical, singlet oxygen, hydroxyl radical (OH•) via the Fenton reaction, hydrogen peroxide, the dimethylarsenic radical, the dimethylarsenic peroxyl radical and/or oxidant-induced DNA damage. Arsenic induces the formation of oxidized lipids which in turn generate several bioactive molecules (ROS, peroxides and isoprostanes), of which aldehydes [malondialdehyde (MDA) and 4-hydroxy-nonenal (HNE)] are the major end products. This review discusses aspects of chronic and acute exposures of arsenic in the etiology of cancer, cardiovascular disease (hypertension and atherosclerosis), neurological disorders, gastrointestinal disturbances, liver disease and renal disease, reproductive health effects, dermal changes and other health disorders. The role of antioxidant defence systems against arsenic toxicity is also discussed. Consideration is given to the role of vitamin C (ascorbic acid), vitamin E (α-tocopherol), curcumin, glutathione and antioxidant enzymes such as superoxide dismutase, catalase and glutathione peroxidase in their protective roles against arsenic-induced oxidative stress.
1,040 citations
TL;DR: The number of different arsenic species found in environmental samples and an understanding of the transformations between arsenic species has increased over the past few decades as a result of new and refined analytical methods.
947 citations
TL;DR: An attempt has been made in this paper to review As contamination, its effect on human health and various conventional and advance technologies which are being used for the removal of As from soil and water.
851 citations
Cites background from "Arsenic round the world: a review."
...It is a crystalline “metalloid”, a natural element with features intermediate between metals and non-metals, occurs naturally as an element, ranks as the 20th most occurring trace element in the earth's crust, 14th in seawater, and 12th in the human body (Mandal and Suzuki, 2002)....
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References
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TL;DR: A table of abundances of the elements in the various major units of the Earth's lithic crust with a documentation of the sources and a discussion of the choice of units and data is presented in this article.
Abstract: This paper presents a table of abundances of the elements in the various major units of the Earth's lithic crust with a documentation of the sources and a discussion of the choice of units and data.
4,619 citations
3,566 citations
2,475 citations
Book•
09 Mar 2012
TL;DR: The Handbook of Geochemistry Editor-in-chief: K.H. Wedepohl Series Editors: C.W. Shaw, K.K. Turekian, J.M. Zemann as mentioned in this paper
Abstract: Submission information at the series homepage and springer.com/authors Order online at springer.com ▶ or for the Americas call (toll free) 1-800-SPRINGER ▶ or email us at: customerservice@springer.com. ▶ For outside the Americas call +49 (0) 6221-345-4301 ▶ or email us at: customerservice@springer.com. Handbook of Geochemistry Editor-in-chief: K.H. Wedepohl Series Editors: C.W. Correns, D.M. Shaw, K.K. Turekian, J. Zemann
1,447 citations
Book•
01 Jan 1966
1,347 citations
"Arsenic round the world: a review." refers background in this paper
...[86] H....
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...3 mg kg in coelenterates, some molluscs and crustaceans [86]....
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