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با ما تماس بگیریدThe area sampled for each one was limited to an area of 0.5 m directly upstream of the net, resulting in an area of 0.25 m2. Because of the high flows and volumes of water found in the incised Animas River canyon (sites 8–14, figs. 1 and 2), a modified rectangular dip-net was constructed for this research.
Antimony (Sb) is introduced into soils, sediments, and aquatic environments from various sources such as weathering of sulfide ores, leaching of mining wastes, and anthropogenic activities. ... 12 surrounding soils, and three samples located at different depths in the shaft to evaluate the environmental impacts of mining practices on As …
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 …
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% abundance) and 123 Sb (42.7% abundance) are the two stable isotopes of antimony. Antimony can possess different oxidation states (such as +5, +3, 0, −3 and −5), but …
Feature papers represent the most advanced research with significant potential for high impact in the field. A Feature Paper should be a substantial original Article that involves several techniques or approaches, provides an outlook for future research directions and describes possible research applications.
The distribution, bioavailability, and accumulation of antimony (Sb) at the interface of rhizospheric soils and indigenous plants from a large Sb mining/smelting area in Southwest China were explored and showed that the local soil was severely polluted by Sb, and the aluminum magnesium silicate minerals and the carbonate fraction may …
Purpose Antimony (Sb) is a highly toxic heavy metal, and its amount in soil is increasing due to anthropogenic activities. Excessive Sb intake could ultimately threat human health. Recently, biochar (BC) has been accepted for remediation of Sb-contaminated soil. Understanding the interaction between BC and Sb and the effect of …
The present work was undertaken to determine strategies and antioxidant enzyme activities involved in the adaptation of two wild steppic plants (Hedysarum pallidum Desf. and Lygeum spartum L.) to the toxic environment of the abandoned antimony mining area of Djebel Hamimat (Algeria). For this purpos …
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 …
However, antimony in mining effluent may increase to 8 ppb, usually combined with soil particles. Thankfully, antimony does not leach from drinking water pipes. Chronic exposure to antimony in the air at levels of 9 mg/m 3 may exacerbate irritation of the eyes, …
1. Introduction. Antimony (Sb) and arsenic (As) are identified as toxic and carcinogenic elements worldwide (Qi and Pichler, 2017, Sharifi et al., 2016).Sb and As have similar physiochemical properties and generally coexist in the geological environment as oxides and sulfide minerals (Dovick et al., 2020, Ye et al., 2020).Mining activities and …
This study investigated soil microbial community in a typical gathering area of antimony mining and smelting in South China. The physical and chemical properties of different soils (mining waste dumps, flotation tailings, and smelting slag) and depths (0–20 cm, 40–60 cm, and 80–100 cm) were compared. The results showed that antimony (Sb) …
1. Pollution sources and emission characteristics1.1. Sb mining and smelting activities. China has the largest reserves of Sb in the world, and it also dominates Sb mining (about 78% of global production capacity) (Dupont et al., 2016).The Sb reserves are relatively concentrated, with 114 Sb mines located within 18 provinces or autonomous …
The combined effects of antimony (Sb) and sodium diethyldithiocarbamate (DDTC), a common organic flotation reagent, on soil microbial activity and speciation changes of heavy metals were investigated for the first time.The results showed that the exchangeable fraction of Sb was transformed to a stable residual …
The Sb mining history in Xikuangshan dates back to the nineteenth century with the first antimony smelter being constructed in 1897 (CMA 2006).Due to the rising demand for antimony in ammunition applications during the World War I, the Sb mining and smelting industry boomed in Xikuangshan with more than 160 family-style plants …
Antimony exposure pathways include inhalation, ingestion and dermal contact, resulting in acute toxic effects on the skin, eyes, lungs, intestines, stomach, …
Combined effects of antimony and sodium diethyldithiocarbamate on soil microbial activity and speciation change of heavy metals. Implications for contaminated lands hazardous material pollution in nonferrous metal mining areas. ... Combined pollution with DDTC and Sb is common in the soils at antimony mining …
Antimony (Sb) is a silver-white brittle solid or a dark-gray, lustrous powder. It can be harmful to the eyes and skin. Antimony can also cause problems with the lungs, heart, and stomach. Workers may be harmed from exposure to antimony and its compounds. The level of exposure depends upon the dose, duration, and work being done.
The first global-scale assessment of Sb contamination in soil that was related to mining/smelting activities was conducted based on 91 articles that were published between 1989 and 2021.
Antimony (Sb) is ubiquitous throughout the environment as a result of natural processes and human activities. In China, superlarge-, large and medium-sized Sb deposits are concentrated in the Guangxi (34.4%), Hunan (21.2%), Yunnan (12.2%) and Guizhou (10.2%) provinces. Due to Sb mining and smelting processes, large quantities …
Antimony (Sb) mining often causes severe Sb pollution and associate arsenic (As) compound contamination.
Effects of antimony and arsenic on antioxidant enzyme activities of two steppic plant species in an old antimony mining area. Biol. Trace Element. Res. 158, 96–104. doi: 10.1007/s12011 ... Effect of antimony on physiological responses of green Chinese cabbage and enzyme activities of allitic udic ferrisols. Pedosphere 25, 124–129. …
1. Erosion. One of the effects of mining on the environment is erosion. The enormous Ok Tedi Mine in Papua New Guinea is a perfect example of how nearby areas can be significantly impacted by the erosion of exposed slopes, mine dumps, tailings dams, and the resulting siltation of drainages, creeks, and rivers.
Benhamdi, A., Bentellis, A., Rached, O., Du Laing, G., Mechakra, A. (2014). Effects of antimony and arsenic on antioxidant enzyme activities of two steppic plant species in an old antimony mining area. ... Chen, T. (2015). Bioaccumulation of antimony and arsenic in vegetables and health risk assessment in the superlarge antimony …
A village was set up to support 15,000 miners working in the ruby mine near Ambatondrazaka, Madagascar. Photo: Pardieu et al. (2017). However, compared to many other industries such as agriculture, mining uses relatively small pockets of land, and the future of mining could move to using techniques that are arguably even less invasive on …
Abstract. We compared As and Sb bioaccumulation and biomagnification when these metalloids co-occurred at varying environmental concentrations in a stream and wetlands near a contaminated mine site in Idaho (USA). We measured As and Sb concentrations in water and substrate samples, and in tissues of organisms representing several trophic …
Heavy metals, primarily antimony, arsenic and manganese from antimony mines in Denali National Park, Alaska impacted all levels of the stream ecosystem. Decreased algal, moss and macroinvertebrate abundance (but not changes in macroinvertebrate trophic organization) were all clearly associated with mining activity in Slate and Eldorado creeks.
Antimony (Sb) mining often causes severe Sb pollution and associate arsenic (As) compound contamination. To further understand the interaction mechanism among soil microorganisms, heavy metal … Expand
Soil samples from an abandoned Sb mining site were tested under laboratory conditions. Two distinct (organic and mineral) soil layers were incubated with each of the amendments (2% w/w application rate) at …
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 …
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 system. In this study, a database of Sb concentrations in the global atmosphere was developed through a survey of …
While producing 66,000 tons a year of battery-grade lithium carbonate, the mine may cause groundwater contamination with metals including antimony and arsenic, according to federal documents. The ...
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