HMs accumulation in soil affects soil microbial population processes and their activity Huang et al 2009; Singh & Kalamdhad 2011 The effects of HMs on microbial population changes and enzymatic activities are dependent upon the type of HMs and their chemical affinity Karaca et al 2010 For examples cadmium Cd affects ureases proteases and basic
At Pb/Zn smelters the spatial distribution of Cd is similar to that of Pb and Zn because Cd is one of the main associated components of Pb/Zn ore Hu and Ding 2009 As the summary statistics of current study shown in Fig 2 the results of the significantly correlated relationship of Pb Zn Cd and As indicate that the correlation between
As for the mines the locations of the two Zn Pb mines operating in the country at the time are well known the Tara mines near Navan in eastern Ireland Mills et al 1987 and the nowclosed
It has been estimated that about 22 000 tons of Cd 939 000 tons of Cu 783 000 tons of Pb and 135 000 tons of Zn are annually discharged into the environment Singh et al 2003 Coal mining industrial production traffic emissions and the use of fertilizers and pesticides are the primary factors responsible for soil HMs contamination Qi
Zn Pb deposits has the potential for a new discovery The Zn Pb Cu deposits in the Jinbao mine district are typical PVT deposits in the eastern Guizhou region Zhou et al 2017 Samples of quartz associated with ore minerals have been collected from four deposits in this area In this study we first present new chemical and
The present chapter has focused on biological characteristics of metal mine tailings and ecological engineering inputs required to rehabilitate soil like biological properties and conditions which underpin soil formation in the tailings for sustainable phytostabilization with native plant communities
Liu et al found that soluble Pb Zn and Cd were reduced by % % and % respectively with Pb Zn and Cd mostly forming carbonate precipitates after bioremediation while using the urease producing bacteria sporosarcina pasteurii to remedy the contaminated soils polluted by Pb Zn and Cd; the pH value of the
The use of multiple isotopic ratios and statistical methods can substantially increase the reliability and precision of determining contamination sources and pathways In this study contamination sources were differentiated in three subareas in one mine area and geochemical processes were investigated using Cu Pb Zn and S isotopes and positive matrix
At Pb/Zn smelters the spatial distribution of Cd is similar to that of Pb and Zn because Cd is one of the main associated components of Pb/Zn ore Hu and Ding 2009 As the summary statistics of current study shown in Fig 2 the results of the significantly correlated relationship of Pb Zn Cd and As indicate that the correlation between
A waste rock dump and a tailings dump are present in the northern area whereas seepages from the adit and goaf are present in the southern area Fig 1 Contaminants in the seepages include Al As Cd Cu Fe Mn Pb and Zn [10] which contaminate the creek in the mine passive treatment facilities downstream of the creek were in operation at
From the Middle Ages until the beginning of the twentieth century extensive Zn Pb mining and smelting was carried out in East Belgium By lack of waste treatment techniques and sustainable management practices metal bearing slags and unprocessed waste were dumped in huge tailings which still represent an important source of contamination A
Field portable X ray fluorescence spectrometers fpXRF are routinely used to provide real time in situ geochemical analysis for a number of elements This study investigates the use of fpXRF to map the distribution and extent of metal contamination in soils at the abandoned Sunny Corner Ag Pb Zn As mine using organs of Pinus radiata The mine site is located approximately 200
The mean concentrations of metals in the fish samples decreased in the order of Zn > Cr > Cu > Se > Cd > As > Hg > Pb where Zn was the most abundant metal mg/kg wet weight A comparison with the concentration of these metals in fish during recent years from other study areas is summarized in Table 3
A total of 455 agricultural soil samples from four nonferrous mines/smelting sites in Shaoguan City China were investigated for concentrations of 10 heavy metals As Cd Co Cr Cu Hg Mn Ni
This mineral system involves mainly magmatic hydrothermal and meteoric fluids that form porphyry Cu Au Mo deposits 1 epithermal Au Ag Ag Zn Pb and Au Cu deposits and Cu Au and Zn Pb Ag skarn deposits More detailed descriptions of aspects of the porphyry epithermal mineral system can be found in Buchanon 1981 White and Hedenquist 1995
Experimental results showed that Cu was mobilized in all the experiments whereas Pb immobilization with H 3 PO 4 may have been related to the precipitation of chloropyromorphite Thus the Pb concentrations of leachates of pure mining and industrial contaminated soils 32 410 μg/l and 430 1000 μg/l respectively were reduced to 1 60 and
This study aimed to evaluate soil physicochemical characteristics pH electrical conductivity organic matter total N and extractable P and K and potentially toxic elements As Cu Pb and Zn in non active mines located in the Portuguese sector of the Iberian Pyrite Belt IPB A total of 70 sampling sites were surveyed at Aljustrel and Lousal in areas already
To this end the current study explores the Cu isotope compositions—δ 65 Cu—of groundwater samples from environmental monitoring bores 18 bores 1 tailings dam water sample proximal and distal to the world class Mount Isa Cu Zn Pb deposit Australia alongside Cu isotope compositions of 12 chalcopyrite samples from within or very
A giant porphyry skarn epithermal Mo W Cu Zn Pb Ag metallogenic system in the Nannihu ore field southern North China Craton Constraints from new geochronological and pyrite geochemical data the local geologists once considered it as the SEDEX type deposit Yan 2004 Pb Zn Ag veins are also well developed in the ore field and were
Article Type Advanced Search Assessment of Soil Physicochemical Characteristics and As Cu Pb and Zn Contamination in Non Active Mines at the Portuguese Sector of the Iberian Pyrite Belt 2022 "Assessment of Soil Physicochemical Characteristics and As Cu Pb and Zn Contamination in Non Active Mines at the Portuguese Sector of
By contrast higher Cu and Zn leachate concentrations were found because they were released by the soil in larger amounts as compared with those of Pb and Cd The differences in the Cu and Zn
Assessment of Soil Physicochemical Characteristics and As Cu Pb and Zn Contamination in Non Active Mines at the Portuguese Sector of the Iberian Pyrite Belt Author Alvarenga Paula Mourinha Clarisse Palma Patrícia Cruz Nuno Rodrigues Sónia Morais Keywords mining activities soil pollution potentially toxic elements soil quality
Gold and Cu deposits are developed in the CAOB Lobanov et al 2014 Pirajno et al 2011 Seltmann et al 2014 Soloviev et al 2022a Soloviev et al 2022b Yakubchuk et al 2005 Daukeev 2004 but there are relatively fewer Cu Au deposits in the a lot of results have been achieved of Cu Au deposits in the XCAOB bue these above results are
