ارتباط با ما
با ما تماس بگیرید
0086-21-58386256
0086-21-58386256
Antimony is widely acknowledged as a critical raw material of worldwide significance, based on its recognition by many countries. According to current projections, there is an anticipated increase in the demand for …
You've already forked sbm 0 Code Issues Pull Requests Packages Projects Releases Wiki Activity
Here, the effects of AFS and FFS on soil properties and bacterial diversity were evaluated in an antimony (Sb) mining area in southern China. This study aimed to identify effective land management methods in terms of …
Experimental design and sampling. We selected the world's largest Sb mining area (XKS, Hunan, China, 27°44′48′′N, 111°28′59′′E) as our study site (Fig. 1a).Mining activities have ...
Positive matrix factorization (PMF) source analysis showed that the main source of Sb pollution in the rivers is the impact of mining and smelting (83.60%), followed by the role of waste rock leaching (16.40%). After irrigation, 27.78% of the river water had strong ecological risks, and 16.67% had extremely strong ecological risks.
INTRODUCTION. Antimony (Sb) (atomic number 51; atomic mass 121.75 g/mol; density 6.684 g/cm 3; melting point 631°C) occurs naturally as a sulphide ore, stibnite (Sb 2 S 3) and …
1. Introduction. Antimony (Sb) is the 51st element in the periodic table. Similar to other pnictogen atoms, Sb forms a volatile, highly toxic trihydride Sb 3+ species, which is unstable under anaerobic conditions. The valence states of Sb in biological and environmental samples, however, are nearly entirely +III and +V. 1 Antimony can be bioaccumulated and harmful to …
Antimony has been known and used since ancient times, but its applications have increased significantly during the last two centuries. Aside from its few medical applications, it …
Antimony mining has resulted in considerable pollution to the soil environment. ... from the world's largest antimony mining area to characterize the depth-resolved soil microbiota and investigate the effects of mining contamination on microbial adaptation. ... (positive edge vs negative edge) in CP, and (E) edge number ratio in UCP. Figure 6 ...
DOI: 10.1016/j.envpol.2019.113830 Corpus ID: 209523964; Interactive effects of arsenic and antimony on Ipomoea aquatica growth and bioaccumulation in co-contaminated soil. @article{Egodawatta2019InteractiveEO, title={Interactive effects of arsenic and antimony on Ipomoea aquatica growth and bioaccumulation in co-contaminated soil.}, author={Lakmini P …
1. Introduction. Antimony (Sb) is one of the most commonly used metallic element, with global reserve of 1.9 million tons. According to recent report, almost 80% of Sb production …
between exposure and the health effect (most target organ effects) and (2) hazards with non-threshold effects considered to pose some level of risk at any level of exposure (cancer and mutagenic effects). The characteristics of specific metals or groups of metals should be considered in hazard identification or identification of critical effects.
1. Antimony – general aspects. Antimony comes under group 15 of the periodic table with ground state electronic configuration [Kr]4d 10 5s 2 5p 3. 121 Sb (57.21% …
The antimony mine area in Lengshuijiang City, Hunan Province, is a nonferrous metal mining area. Its geographical coordinates range from (N27°45′, E111°29′).The total area of the mining area is 63 km 2, located in the central region of Hunan Province.It has a subtropical monsoon climate characterized by mild temperatures and abundant rainfall.
The mining of antimony ... measuring 0.93 and 0.94 for soil samples GX3 and GZ1, respectively. Similarly, strong positive correlations were observed between Fe(III) reduction and As mobilization, with coefficients of 0.97, 0.93, and 0.90 for soil samples GX3, GZ1, and GZ2, respectively. ... Effects of different forms of antimony on rice during ...
Antimony (Sb), a toxic metalloid element, is located in the Group VA of the fifth period of the periodic table of elements. At present, with the wide use of antimony containing products in the world and the corresponding mining activities, a large number of antimony containing waste generated in these processes has also been released to the environment, …
Mining activities, including prospecting, exploration, construction, operation, maintenance, expansion, abandonment, decommissioning and repurposing of a mine can impact social and environmental systems in a range of positive and negative, and direct and indirect ways. Mining can yield a range of benefits to societies, but it may also cause conflict, not least …
Evaluation of antimony availability in a mining context: Impact for the environment, and for mineral exploration and exploitation. ... implying the positive effects of endophytes inoculation. Expand. 2 Excerpts; Save. Sustainable Restoration of Soil Functionality in PTE-Affected Environments: Biochar Impact on Soil Chemistry, Microbiology ...
Impacts of environmental parameters on the overall microbial community. It has been reported that bacteria respond differently towards Sb and As contamination in our previous study (Sun et al., 2017). Additionally, microbes inhabiting mining areas adopt certain survival strategies to utilize these chemical elements (Sun et al., 2018).
United States Antimony (NYSE American:UAMY) ha adquirido 69 reclamos mineros en el Estado de Alaska, que cubren 11,040 acres.La adquisición se basó en recomendaciones de geólogos experimentados y datos históricos. Un objetivo clave es un vein de cuarzo de 8 pies de ancho con alto contenido de cobre, que promedia un 16,5% de cobre, 0,076 opt de oro y 2,21 …
Heavy metal pollution in mining areas is a major cause of groundwater contamination, characterized by high toxicity, difficult degradability, and easy accumulation, and the source of pollution is ...
Elevated soil concentrations of antimony (Sb) and co-contaminants are frequently encountered where antimony has been mined on a large scale. For instance, the Xikuangshan antimony mine in central South China has sustained, over many centuries, dispersed and spatially variable input of toxic elements into the soil ecosystem. We utilized this unique …
1. Introduction. Antimony (Sb) is one of the most commonly used metallic element, with global reserve of 1.9 million tons. According to recent report, almost 80% of Sb production was concentrated in China, Russia, and Bolivia (United States Geological Survey, 2021).By 2020, China was the leading producer of Sb worldwide, accounting for nearly 80,000 metric tons, …
Antimony (Sb) and arsenic (As) are toxic elements that occur widely in trace soil concentrations. Expansion of mining activities has increased Sb and As pollution, thus posing a severe threat to human welfare and ecological systems worldwide. Knowledge regarding the composition and adaptation of the …
The effect of long-term ageing (up to 700 days) on the mobility, potential bioavailability and bioaccessibility of antimony (Sb) was investigated in two soils (S1: pH 8.2; S2: pH 4.9) spiked with two Sb concentrations (100 and 1000 mg·kg −1).The Sb mobility decreased with ageing as highlighted by sequential extraction, while its residual fraction significantly …
procedures for antimony and antimony compounds for pulmonary toxicity, cancer and genotoxicity. As reviewed by ATSDR, 2019 the uptake of antimony into the body can be dominated by the inhalation exposure route. Uptake from the gastrointestinal tract is low (<1%) and self-limited by the emetic properties of antimony compounds (ATSDR, 2019).
1. Introduction. Antimony (Sb) is the 51st element in the periodic table. Similar to other pnictogen atoms, Sb forms a volatile, highly toxic trihydride Sb 3+ species, which is …
Abandoned antimony mining area of Djebel Hamimat (Algeria) 19436 (Benhamdi et al., 2014) Pistacia lentiscus: Roots Leaves: 3.39 1.51: Abandoned mining area Sardinia Italy: ... Antimony had severe effects on germination and root elongation of rapeseed than radish. Antimony can cause leaf chlorosis and necrosis as observed by Vaculík et al. ...
A preliminary report on the investigation of the comparative toxicity of combustion products of high impact polystyrene with and without decabrom idiphenyloxide/antimony xide as a flame retardant using 2,3,7,8-tetrabrom odibenzo-p-dioxin and 2,3,7,8-tetrabrom odibenzofuran as positive controls
Antimony (Sb), a priority pollutant listed by the U.S. Environmental Protection Agency (USEPA), can cause adverse effects on human health, with particular impacts on skin, eyes, gastrointestinal tract, and respiratory …
