Data on arsenic contamination in groundwater of Rafsanjan plain, Iran

Rahnamarad, Jafar; Derakhshani, Reza; Abbasnejad, Ahmad

doi:10.1016/j.dib.2020.105772

Cited by 12 publications

(4 citation statements)

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“…13 These formation mechanisms are the main contributors to the increasing levels of arsenic in groundwater. 14,15 Given the heightened mobility, toxicity, and fluidity of As(III) compared to As(V), and the fact that As(III) typically exists in molecular form, the removal efficiency of various processes for As(III) is considerably lower than for As(V). 16 Therefore, to effectively remove As(III) from water, most treatment processes necessitate its oxidation to a more treatable form, As(V).…”

Section: Introductionmentioning

confidence: 99%

“…The natural sources of arsenic are primarily due to shifts in natural environmental conditions, which can trigger the release of arsenic from arsenic-containing minerals. , This arsenic can bind to the surface of absorptive rocks, thereby increasing the concentration of arsenic in groundwater . These formation mechanisms are the main contributors to the increasing levels of arsenic in groundwater. , …”

Section: Introductionmentioning

confidence: 99%

“… 13 These formation mechanisms are the main contributors to the increasing levels of arsenic in groundwater. 14 , 15 …”

Section: Introductionmentioning

confidence: 99%

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Novel Method for the Arsenic Removal Experiment and Mechanism Analysis

Zhu,

Lin,

Fan

2023

ACS Omega

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This study focuses on the hydrothermal synthesis of magnetically activated carbon and its efficacy in As(III) adsorption. The successful incorporation of magnetite nanoparticles within the porous carbon structure was confirmed, enriching the adsorbent's properties. Comprehensive characterization was performed to analyze the pore size distribution, zeta potential at varying pH levels, and thermostability using thermogravimetric analysis. These adsorbents exhibited high As(III) removal efficiency with a uniform pore distribution. The zeta potentials were observed to decrease with an increase in pH, suggesting a relationship between adsorbent charge and pH. Adsorption dynamics were rigorously modeled using pseudo-first-order, pseudo-secondorder, Elovich, and intraparticle diffusion models for different adsorbents labeled as a, b, c, and d. Each adsorbent displayed unique fitted parameters, revealing varied adsorption capabilities. The study further explored the adsorption kinetics and found that the pseudo-second-order kinetics model and the Langmuir model were most appropriate for describing the adsorption process. Adsorption thermodynamics was also fitted to elucidate the underlying adsorption mechanisms. For the a, b, c, and d adsorbents, the pseudo-first-order model, the q e (cal) values for the four adsorbents were 434.2, 418.4, 283.5, and 279.5 μg/g, respectively. Take adsorbent a as an example; the q m values for 298, 303, 308, and 313 K were 702, 673, 605, and 589 μg/g, respectively, and K L values of these temperatures were 0.021, 0.031, 0.018, and 0.009 L/μg, respectively. For the Langmuir model, the R 2 values at the four temperatures were 0.999, 0.978, 0.985, and 0.993, respectively, which indicated that the Langmuir model showed higher fitness. For the Freundlich model, the K L values (L/μg) at the parameters of these temperatures are 432, 409, 328, and 294, respectively. For the Freundlich model, the 1/n values at temperatures of 298, 303, 308, and 313 K are 0.049, 0.045, 0.052, and 0.035, respectively. For the Freundlich model, the R 2 values at parameters of 298, 303, 308, and 313 K are 0.986, 0.989, 0.982, and 0.872, respectively. For the Temkin model, the B values (in J/mol) are 30.93, 0.894, 0.824, and 0.782 at these temperatures, respectively. The K T values (in L/μg) are 1.02 × 10 6 , 0.07 × 10 6 , 0.003 × 10 6 , and 0.002 × 10 6 , respectively. The R 2 values are 0.973, 0.958, 0.972, and 0.894, respectively. In the end, the ΔH, ΔS, and ΔG values for different adsorbents were calculated. Collectively, these findings contribute significant insights into the design and application of magnetically activated carbon adsorbents for effective As(III) removal.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Novel Method for the Arsenic Removal Experiment and Mechanism Analysis

Zhu,

Lin,

Fan

2023

ACS Omega

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“…While the World Health Organization (WHO) guidelines emphasize that the concentration of As in drinking water should be determined to a maximum level of 10 µg/L, it is estimated that virtually 220 million individuals throughout the world still access drinking water contaminated with higher concentrations of As [5]. As a case in point, excessive accumulation of As in the groundwater and soil has been observed in different regions of Iran [6,7]. It has been widely demonstrated that long-term exposure to As can compromise human health and culminate in various health conditions [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

The Protective Effects of Trametes Versicolor on Arsenic-Induced Male Reproductive Toxicity through Regulation of Oxidative Stress: A Biochemical and Histopathological Survey

Solaimani,

Habibi,

Ghasemi

et al. 2023

Andrologia

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Exposure to arsenic is linked to a wide range of diseases, in particular male reproductive toxicities. Trametes versicolor is a traditional medicinal fungus with a remarkable potential for antioxidant activity. The purpose of this study was to examine the ameliorating effects of water and methanol extracts of T. versicolor on arsenic-induced male reproductive toxicities via the abrogation of oxidative stress. The mice were divided as follows: control: normal saline, As: arsenic (15 mg/kg), WE: water extract (400 mg/kg), ME: methanol extract (400 mg/kg), As + WE: arsenic (15 mg/kg) + water extract (100, 200, 400 mg/kg), As + ME: arsenic (15 mg/kg) + methanol extract (100, 200, 400 mg/kg), and positive control: arsenic (15 mg/kg) + vitamin C (500 mg/kg). Animals were treated via the intraperitoneal route. About 24 hr later, the mice were euthanized, and oxidative stress parameters (reactive oxygen species [ROS], lipid peroxidation, glutathione concentration, protein carbonylation, glutathione peroxidase, and superoxide dismutase activity), histopathological changes and sperm parameters (count, motility, and morphology) were examined in the testicular tissue. Arsenic caused significant pathological changes in the testicular tissue and sperm morphology and significantly reduced sperm count and motility. Moreover, arsenic mediated oxidative stress via significant increases in ROS generation, lipid peroxidation, and protein carbonyl content, as well as significant depletion in glutathione concentration and superoxide dismutase and glutathione peroxidase activities. Although, coadministration of water and methanol extracts of T. versicolor at 200 and 400 mg/kg counteracted arsenic-induced oxidative and histopathological damages and improved sperm parameters. Our study indicated that T. versicolor ameliorated arsenic-induced testis toxicity and sperm dysfunction via attenuation of oxidative damage.

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