Arsenic

Stoeppler, M.

doi:10.1002/9783527619634.ch57

Cited by 10 publications

(2 citation statements)

References 203 publications

(185 reference statements)

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“…Arsenic (As) is a toxic element that ranks 20th in abundance in the Earth’s crust, with an average concentration of 2–3 mg/kg [ 1 , 2 ]. Arsenic is ubiquitous in the atmosphere, lithosphere, hydrosphere, pedosphere and biosphere of the Earth and is commonly associated with metal ores, such as arsenolite (As 2 O 3 ), olivinite (Cu 2 OHAsO 4 ), cobaltite (CoAsS), and proustite (Ag 3 AsS 3 ) [ 3 ]. High concentrations of arsenic in groundwater (over 10 µg/L) can adversely affect human health [ 4 , 5 ].…”

Section: Introductionmentioning

confidence: 99%

Arsenic Speciation and Extraction and the Significance of Biodegradable Acid on Arsenic Removal—An Approach for Remediation of Arsenic-Contaminated Soil

Van

Osanai

Nguyen

et al. 2017

IJERPH

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A series of arsenic remediation tests were conducted using a washing method with biodegradable organic acids, including oxalic, citric and ascorbic acids. Approximately 80% of the arsenic in one sample was removed under the effect of the ascorbic and oxalic acid combination, which was roughly twice higher than the effectiveness of the ascorbic and citric acid combination under the same conditions. The soils treated using biodegradable acids had low remaining concentrations of arsenic that are primarily contained in the crystalline iron oxides and organic matter fractions. The close correlation between extracted arsenic and extracted iron/aluminum suggested that arsenic was removed via the dissolution of Fe/Al oxides in soils. The fractionation of arsenic in four contaminated soils was investigated using a modified sequential extraction method. Regarding fractionation, we found that most of the soil contained high proportions of arsenic (As) in exchangeable fractions with phosphorus, amorphous oxides, and crystalline iron oxides, while a small amount of the arsenic fraction was organic matter-bound. This study indicated that biodegradable organic acids can be considered as a means for arsenic-contaminated soil remediation.

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Section: Introductionmentioning

confidence: 99%

Arsenic Speciation and Extraction and the Significance of Biodegradable Acid on Arsenic Removal—An Approach for Remediation of Arsenic-Contaminated Soil

Van

Osanai

Nguyen

et al. 2017

IJERPH

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“…The mean concentration of As in this investigation was 0.98 ± 0.47 mg/kg of wet weight (w.w.). Generally, most arsenic (95%) is found in marine fish as organic forms (e.g., arsenobetain, arsenocholine, and arsenosugars); however, they are less toxic and are rapidly eliminated from a human organism, and thus they are of much lesser importance regarding food safety aspects [ 42 , 43 , 44 ]. Thus, the maximum limit of As in fish species is not regulated.…”

Section: Resultsmentioning

confidence: 99%

Metal Load of Potentially Toxic Elements in Tuna (Thunnus albacares)—Food Safety Aspects

Lehel

Papp

Bartha

et al. 2023

Foods

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The consumption of marine fishes has a positive effect on a consumer’s health; however, it poses a potential risk due to their level of heavy metals in their body. Heavy metals can be naturally found in the environment, but their concentration can be increased with anthropogenic activities. Samples of tuna (Thunnus albacares) were collected at a fishery market. The potentially toxic elements (arsenic, cadmium, lead, and mercury) were determined with a validated method in the flesh of fish using inductively plasma optical emission spectrometry after microwave digestion. Generally, the average concentration of them was below the official limit values regulated by the European Union, except for lead. Based on the concentrations of arsenic (inorganic derivates: 0.05 ± 0.02 mg/kg) and cadmium (0.03 ± 0.01 mg/kg) in the tuna fish samples, and their calculated EDI values (As: 0.03–0.09 µg/kg/day; Cd: 0.05–0.07 µg/kg/day), the investigated food could be declared safe for human consumption. Generally, mercury content was below the official regulated limit, and the calculated EDI value was below the dietary reference value (0.3 μg/kg/day) in most of the samples (90%), exceeding it only in two samples (0.69 and 0.82 μg/kg/day); thus, they may not be harmful to the consumer. The concentration of lead above the official maximum limit (0.30 mg/kg) in 40% of tuna samples (0.30–1.59 mg/kg), as well as the exceeding of the dietary reference value for lead (adult: 0.16 μg/kg/day; children: 0.26 μg/kg/day) based on the calculated EDI values (0.28–1.49 μg/kg/day), draw attention to the importance of environmental pollution and the protection of consumers’ health.

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