Arsenic anomalies in soils and rocks occurring in the southwestern part of the Grand Duchy of Luxembourg

Claes, Hannes; Cappuyns, Valérie; Swennen, Rudy; Meyer, R.

doi:10.1016/j.jhazmat.2020.124696

Cited by 7 publications

(2 citation statements)

References 52 publications

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“…Some studies have shown that the sources of As in soil are mainly man-made and natural sources. Generally, some arsenic-bearing sulfide and oxide rocks migrate to soil under weathering and rain erosion [ 69 , 70 ]. From Table 2 , the average value of ω (As) in the study area is 13.16 mg·kg −1 , it is obviously higher than the background value of soil environment in Henan Province (10 mg·kg −1 ).…”

Section: Resultsmentioning

confidence: 99%

Source Analysis and Contamination Assessment of Potentially Toxic Element in Soil of Small Watershed in Mountainous Area of Southern Henan, China

Chen

Cao

et al. 2022

IJERPH

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In this study, the concentrations of potentially toxic elements in 283 topsoil samples were determined. Håkanson toxicity response coefficient modified matter element extension model was introduced to evaluate the soil elements contamination, and the results were compared with the pollution index method. The sources and spatial distribution of soil elements were analyzed by the combination of the PMF model and IDW interpolation. The results are as follows, 1: The concentration distribution of potentially toxic elements is different in space. Higher concentrations were found in the vicinity of the mining area and farmland. 2: The weight of all elements has changed significantly. The evaluation result of the matter-element extension model shows that 68.55% of the topsoil in the study area is clean soil, and Hg is the main contamination element. The evaluation result is roughly the same as that of the pollution index method, indicating that the evaluation result of the matter-element extension model with modified is accurate and reasonable. 3: Potentially toxic elements mainly come from the mixed sources of atmospheric sedimentation and agricultural activities (22.59%), the mixed sources of agricultural activities and mining (20.26%), the mixed sources of traffic activities, nature and mining (36.30%), the mixed sources of pesticide use and soil parent material (20.85%).

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Section: Resultsmentioning

confidence: 99%

Source Analysis and Contamination Assessment of Potentially Toxic Element in Soil of Small Watershed in Mountainous Area of Southern Henan, China

Chen

Cao

et al. 2022

IJERPH

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“…Long‐term exposure to arsenic (As) is linked to diseases, including skin and lung cancers as well as cardiovascular and neurological issues (Akhtar et al., 2021; Rahaman et al., 2021). Arsenic occurs naturally in soil, with concentrations strongly dependent on parent rock and weathering processes (Claes et al., 2021); however, anthropogenic activities associated with gold mining and processing can concentrate As in waste by‐products, including tailings, calcinated sands, and grey slimes (Ollson et al., 2016). Other common anthropogenic sources of As in the environment include pesticides and preservatives used in wood and timber and smelting operations (Alidokht et al., 2021).…”

Section: Introductionmentioning

confidence: 99%

Arsenic immobilization in soil affected by mining waste using waste‐derived functional hydrochar and iron‐encapsulated materials

Haris

Netherway²,

Eshtiaghi

et al. 2023

J of Env Quality

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Arsenic (As) contamination is a widespread problem. Continued and concerted effort in exploring sustainable remediation strategies is required, with in situ immobilization emerging as a promising option. This work valorized a waste by‐product from olive (Olea europaea L.) milling into functional hydrochar (HC). The HC was then transformed into iron oxide–encapsulated carbon with three different iron loading rates (10, 25, and 50% w/w of iron chloride hexahydrate added to the olive mill waste feedstock). The HC and the three iron oxide–encapsulated carbon materials were then tested in a pot trial using a 3% w/w application rate as a means to immobilize As in a mining‐contaminated soil (2,580 ± 110 mg kg−1 As). After a 45‐d incubation period, the effect of adding the amendments on As mobility and bioaccessibility compared with an untreated control was measured using a sequential extraction procedure and in vitro bioaccessibility, respectively. All four treatments resulted in a decrease in mobility and in vitro bioaccessibility as compared with the control. Specifically, As in the mobile phases was up to 35% less than the in control, whereas bioaccessibility was 21.8% in the control and ranged from 17.5 to 12.3% in the treatments. The efficiency of amendments to immobilize As increased with the iron content of the developed materials. This work positions HCs and iron oxide–encapsulated carbon materials produced from olive mill waste as promising options to immobilize As in situ.

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Lithological controls on arsenic accumulation in cultivated soils: observations from typical karst areas in Central Guizhou, Southwest China

Meng

Liu

et al. 2022

Bull Environ Contam Toxicol

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Arsenic anomalies in soils and rocks occurring in the southwestern part of the Grand Duchy of Luxembourg

Cited by 7 publications

References 52 publications

Source Analysis and Contamination Assessment of Potentially Toxic Element in Soil of Small Watershed in Mountainous Area of Southern Henan, China

Source Analysis and Contamination Assessment of Potentially Toxic Element in Soil of Small Watershed in Mountainous Area of Southern Henan, China

Arsenic immobilization in soil affected by mining waste using waste‐derived functional hydrochar and iron‐encapsulated materials

Lithological controls on arsenic accumulation in cultivated soils: observations from typical karst areas in Central Guizhou, Southwest China

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