Arsenic (As) is a metalloid environmental pollutant ubiquitous in nature that causes chronic and irreversible poisoning to humans through its bioaccumulation in the trophic chain. Rice, the staple food crop for 350 million people worldwide, accumulates As more easily compared to other cereal crops due to its growth characteristics.
Arsenic is a component of 245 minerals, associated most frequently with other metals such as copper, gold, lead, and zinc in sulfidic ores. 1 ... each consisting of two α-chains and two β-chains. Rat hemoglobin has three cysteines in each α-chain (Cys13, Cys104, and Cys111) and two cysteines in each β-chain (Cys93 and Cys125). ...
Abstract. Fish and seafood are main contributors of arsenic (As) in the diet. The dominating arsenical is the organoarsenical arsenobetaine (AB), found particularly in finfish.
This review provides a better understanding of arsenic transfer, raises awareness on how arsenic inputs to soil can lead to toxicity in higher animals and …
Inorganic forms of arsenic accumulate in different species via the food chain in addition to its presence in nature and pose detrimental effects on humans. The …
Besides two major arsenic containing hydrocarbons (AsHC332 and AsHC360) three new arsenic containing medium chain fatty acids (As-MCFA) of molecular mass 250, 278, 292 and two new arsenic containing long chain fatty acids (As-LCFA) of mass 306 and 320 could be identified although their concentrations were as low as 0.004 μg g −1 As …
Recent toxicokinetic studies show that some organoarsenicals are bioaccessible and cytotoxic with demonstrated toxicities like that of pernicious trivalent …
Conveyor chain is used for material conveyance under harsh conditions, in specialty applications, or when material can be allowed to fall through gaps in the conveying surface. Like a transmission chain, a conveyor chain consists of journal bearings that are joined by link plates. These bearings consist of a case-hardened pin and bush to allow ...
The EFSA Panel on Contaminants in the Food Chain (CONTAM Panel) assessed the risks to human health related to the presence of arsenic in food. More than 100,000 occurrence data on arsenic in food were considered with approximately 98 % reported as total arsenic. Making a number of assumptions for the contribution of …
Arsenic (As) is a metalloid environmental pollutant ubiquitous in nature that causes chronic and irreversible poisoning to humans through its bioaccumulation in the …
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Arsenic, a metalloid that exists by nature, reaches the earth either by natural or anthropogenic events and is considered an emerging pollutant. The existence of arsenic in soil systems is a fate to the environment since it is mobile and being transported to other systems because of its bioavailability and speciation process. Arsenic transformation in …
Being at the base of the marine food chain, microalgae play a key role in As cycling, acting as the first interface for As transfer by taking up mostly As(V) from seawater (Duncan et al., 2010).As a detoxification mechanism, As(V) is biotransformed by microalgae to other organic As species through a series of methylation and reduction processes first …
Mitochondria are the target organelles for arsenic toxicity because of their pivotal role in ROS generation through the electron transport chain (ETC) and energy …
Arsenic (As) is a toxic metalloid associated with various negative human health impacts including cancer, skin lesions, cardiovascular diseases, and diabetes. Arsenic contamination of groundwater and soil is a major human health issue, particularly in South and Southeast Asia. Use of As-contaminated groundwater from shallow tube …
Arsenic-containing hydrocarbons seem to dominate in fish species with higher total arsenolipid content (brill and sardine), ... Arsenic-containing long-chain fatty acids in cod-liver oil: a result of biosynthetic infidelity. Angew …
Fast facts about arsenic poisoning. Arsenic is a natural metalloid chemical that may be present in groundwater. Ingestion only poses health problems if a dangerous amount of arsenic enters the ...
SUMMARY. In 2009, the EFSA Panel on Contaminants in the Food Chain (CONTAM) adopted a Scientific Opinion on the presence of arsenic in food. The European Commission (EC) has asked the European Food Safety Authority (EFSA) for an update of the hazard assessment of inorganic arsenic (iAs) because new studies have become …
Arsenic binding to a specific protein could alter the conformation of the protein, resulting in loss of its function, and …
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National Institute ofEnvironmental Health Sciences. Last Reviewed: November 13, 2023. Arsenic is a naturally occurring element that is widely distributed in the Earth's crust. It is found in water, air, food, and soil. …
DOI: 10.1016/j.scitotenv.2011.09.069 Corpus ID: 25941804; Arsenic in the human food chain: the Latin American perspective. @article{Bundschuh2012ArsenicIT, title={Arsenic in the human food chain: the Latin American perspective.}, author={Jochen Bundschuh and Bibhash Nath and Prosun Bhattacharya and Chen‐Wuing Liu and …
Mitochondria are the target organelles for arsenic toxicity because of their pivotal role in ROS generation through the electron transport chain (ETC) and energy metabolism, suffering from oxidative damage (Prakash et al., 2016). However, the alterations driven by arsenic in the mitochondrial function may vary between pentavalent …
Arsenic is a known human carcinogen associated with skin, lung, bladder, kidney, and liver cancer.3 Long-term exposure to arsenic, even at lower levels, can increase the risk of other types of chronic disease.4. Arsenic can afect a broad range of organs and systems including: Cardiovascular system. Endocrine system.
Arsenic is widely distributed throughout the environment. Contaminated groundwater is the principal route of exposure, followed by the smelting of metals, combustion of fossil …
Arsenic is a ubiquitous element that can pollute soil, water and plants including other compartments of the ecosystem and the environment, and ultimately affects human health and well-being (Bundschuh et al. 2012; Islam et al. 2014a, b; Islam and Hoque 2014).Arsenic can be taken up by the terrestrial and aquatic biota which are …
The RA chain conveyor is an angle conveyor designed with the principle of the chain conveyor in mind. It is well-suited to bulk intakes and/or to avoid the use of an elevator. With modular bend sections for ascending …
Terrestrial plant . Arsenic is a non-essential element accumulated in plants via oxidative and/or genotoxic mechanisms depending upon several factors. It can enter plants through soil, water, and air, entering the food chain, where accumulation and biomagnification occur. 23 In fact, plants – particularly rice, wheat, maize, and vegetables …
CONVEYOR CHAIN. Cimbria Single- or double strand conveyor chain is assem-bled with pins-and-bushes. Return buckets (RL, RM). Basic scraper flaps bolted into the chain flights (RL, RM, RS, RA). Chamfered scraper flaps: Frequently change of materials that have C a low tolerance to mixing. 1500 1600 1600 1600 A 1600 250.
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