Results 11 to 20 of about 22,491 (228)
Arsenic Methyltransferase and Methylation of Inorganic Arsenic [PDF]
Arsenic occurs naturally in the environment, and exists predominantly as inorganic arsenite (As (III) and arsenate As (V)). Arsenic contamination of drinking water has long been recognized as a major global health concern. Arsenic exposure causes changes in skin color and lesions, and more severe health conditions such as black foot disease as well as ...
Nirmal K. Roy, Anthony Murphy, Max Costa
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Phytochelatins are involved in differential arsenate tolerance in Holcus lanatus [PDF]
Arsenate tolerance is conferred by suppression of the high-affinity phosphate/arsenate uptake system, which greatly reduces arsenate influx in a number of higher plant species. Despite this suppressed uptake, arsenate-tolerant plants can still accumulate
Hartley-Whitaker, J +5 more
core +3 more sources
The toxicity and carcinogenicity of arsenic are well known, but vexing questions remain. The current controversy over the appropriate Federal limit for arsenic in drinking water highlights some of the difficult scientific, ethical, economic, and political issues that complicate standard-setting in occupational and environmental health.
H, Frumkin, M J, Thun
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An arsenic metallochaperone for an arsenic detoxification pump [PDF]
Environmental arsenic is a world-wide health issue, making it imperative for us to understand mechanisms of metalloid uptake and detoxification. The predominant intracellular form is the highly mephitic arsenite, which is detoxified by removal from cytosol.
Lin, Y-F., Walmsley, A. R., Rosen, B. P.
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A STUDY OF THE SILVER ARSENATE TEST FOR ARSENIC. [PDF]
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Curtman, L. J., Daschavsky, P.
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Effects of arsenate (As5+) on growth and production of glutathione (GSH) and phytochelatins (PCs) in Chlorella vulgaris [PDF]
The effect of arsenate (As5+) on growth and chlorophyll a production in Chlorella vulgaris, its removal by C. vulgaris and the role of glutathione (GSH) and phytochelatins (PCs) were investigated.C. vulgaris was tolerant to As5+ at up to 200 mg/L and was
Huw Jones +11 more
core +1 more source
Arsenate Removal from Aqueous Media Using Chitosan-Magnetite Hydrogel by Batch and Fixed-Bed Columns
The removal of arsenate ions from aqueous solutions at near-neutral pH was carried out using chitosan-magnetite (ChM) hydrogel beads in batch systems. Equilibrium isotherms and kinetic studies are reported.
Ilse Paulina Verduzco-Navarro +5 more
doaj +1 more source
KINETICS OF ARSENITE AND ARSENATE DESORPTION FROM GOETHITE [PDF]
Arsenic is a toxin that can occur in the environment as a result of either natural processes or anthropogenic activities. The accumulation of arsenite and arsenate in soils and sediments threatens the health of plants, wildlife, and humans.
L. R. Hossner +2 more
doaj +1 more source
Arsenate phytotoxicity regulation by humic acid and related metabolic mechanisms
The use of irrigation water containing arsenic (As) had led to large areas of As-contaminated farmland, and as a result, plants and food have become severely poisoned.
Qi Wang +7 more
doaj +1 more source

