Total concentrations and fractionation of heavy metals in road-deposited sediments collected from different land use zones in a large city (Nanjing), China

Hu, Xiangming; Yun, Zhang; Luo, Jun; Wang, Tijian; Lian, Hong-zhen

doi:10.3184/095422911x12971903458891

Cited by 13 publications

(3 citation statements)

References 19 publications

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“…In general, the proportions of residual heavy metals decreased with the increase of total heavy metal contents (Figures 2 and 3). This is similar to the previous results (Li and Thornton, 2001;Chaudhary and Banerjee, 2004;Ogundiran and Osibanjo, 2009;Luo et al, 2012b) Cd and Pb are known to be preferentially associated with carbonate minerals, due to their similar size to the Ca ion (Rimstidt et al, 1998), thus a substantial proportion of Cd and Pb in various soils is usually associated with carbonates in the soils (Han and Banin, 1997;Maskall and Thornton, 1997;Faiga et al, 2011;Hu et al, 2011). On the other hand, soil organic matter fixes Cu very strongly (Bloom, 1981), thus a substantial proportion of Cu in various soils is often associated with soil organic matter (Han and Banin, 1997;Mehra et al, 1999;Lin et al, 2008b;Osakwe et al, 2012).…”

Section: Chemical Forms Of Heavy Metals In the Soilsupporting

confidence: 90%

Concentrations and chemical forms of heavy metals in agricultural soil near the world’s largest and oldest tungsten mine located in China

Shao

Cheng

Duan

et al. 2013

Chemical Speciation & Bioavailability

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Tungsten (W) mining has taken place in Ganzhou in China for about 100 years. Such long-term W mining may release large amount of metals to soils and waters around these mines. Twenty soil samples were taken from the area around the W mines and 10 soil samples from an area much farther away. These soil samples were analysed for physicochemical properties, heavy metal content and their chemical forms. Results show that long-term W mining significantly increased both total and labile contents of Cd, Cu, Pb and Zn, but did not, or only slightly, increased the total content of Co, Cr and Ni in the soil near the mine. Average enrichment factor (EF) in the agricultural soils was 4.0, 2.4, 2.2, and 2.0 for Cd, Cu, Pb and Zn, respectively. The labile fraction was dominated by the carbonate-bound fraction for Cd (54.5%) and organic matter-bound fraction for Cu (37.9%), while the major labile fractions for Pb and Zn were associated with carbonates (30.2% and 6.4%), oxides (17.9% and 10.6%) and organic matter (9.2% and 18.8%). Consequently, there is a need to be cautious about Cd in the soils contaminated by W mining.

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Section: Chemical Forms Of Heavy Metals In the Soilsupporting

confidence: 90%

Concentrations and chemical forms of heavy metals in agricultural soil near the world’s largest and oldest tungsten mine located in China

Shao

Cheng

Duan

et al. 2013

Chemical Speciation & Bioavailability

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“…The chemical composition of heavy metals can signi cantly affect their bioavailability and environmental risk. Among them, F1 and F2 have direct eco-toxicity and bioavailability, F3 has potential eco-toxicity and bioavailability, and F4 is stable and has no eco-toxicity and bioavailability (Hu et al, 2011). Therefore, the chemical speciation of heavy metals is one of the characteristic ngerprints of sewage sludge.…”

Section: Heavy Metal Speciationmentioning

confidence: 99%

Identification of industrial sewage sludge based on heavy metal profiles: a case study of printing and dyeing industry

Zhang

Chen

et al. 2021

Environ Sci Pollut Res

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The illegal disposal of industrial sewage sludge has caused serious environmental pollution. To develop identi cation techniques of industrial sewage sludge based on the characteristic ngerprints carried by sewage sludge itself is a promising method that is helpful to clarify the responsibility of illegal enterprises. In this study, heavy metal composition and speciation of sewage sludge from industries (including printing and dyeing industry and other industries) and municipal sewage treatment plant located in eastern China were determined and their performance of classi cation was evaluated by principal component analysis (PCA) and linear discrimination analysis (LDA). Results showed that heavy metal composition and speciation can be an effective tool for distinguishing sewage sludge between printing and dyeing industry and other industries, with an accuracy rate of 82.9% and 100%, respectively. Antimony (Sb) and zinc (Zn) are two characteristic heavy metals, which can be used to identity sewage sludge in printing and dyeing sub-industries with an accuracy rate of 90%. The combination of these three methods may be a precise and promising tool for identi cation of sewage sludge between industries and sub-industries. This study developed a potential method for tracing the industrial sources of sewage sludge and establishing the identi cation database of industrial sewage sludge, and provided technical support for the government to supervise the illegal dumping and disposal of industrial sewage sludge.

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“…Nanjing is one of the fastest developing districts in industrialization and urbanization in China. Contamination with heavy metals is also a serious problem [11,12]. In the present study, roadside soils, dusts and three popular ornamental plants were collected from roadside along urban arteries inner Nanjing, China.…”

Section: Introductionmentioning

confidence: 99%

Transfer of Heavy Metals (Cd, Pb, Cu and Zn) from Roadside Soil to Ornamental Plants in Nanjing, China

Ding

2011

AMR

Self Cite

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Roadside soil, dusts, and three ornamental plants-Begoniaceae (Begonia semperflorens Link et Otto), Tagetes (Tagetes erecta Linn.), and Salvia (Salvia splendens Ker-Gawle) were collected from urban arteries in Nanjing City, China. Concentrations of metals (Pb, Cd, Cu and Zn) were analyzed using inductively coupled plasma atom emission spectrometry and inductively coupled plasma mass spectrometry. Cd was the most important contaminant in roadside soil and dusts. Generally, Begoniaceae accumulated more metals than Tagetes and Salvia. The order of bioconcentration factor values for three kinds of plants were Cd > Cu > Zn > Pb, suggesting Cd was more easily accumulated by ornamental plants than Zn and Pb from soils to roots. The values of the translocation factor show the significant species specific characteristics on the ability of metals (Cd, Cu, Zn and Pb) translocation from roots to leaves. Begoniaceae was recommended as a bioindicator of heavy metals in the urban environment.

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Total concentrations and fractionation of heavy metals in road-deposited sediments collected from different land use zones in a large city (Nanjing), China

Cited by 13 publications

References 19 publications

Concentrations and chemical forms of heavy metals in agricultural soil near the world’s largest and oldest tungsten mine located in China

Concentrations and chemical forms of heavy metals in agricultural soil near the world’s largest and oldest tungsten mine located in China

Identification of industrial sewage sludge based on heavy metal profiles: a case study of printing and dyeing industry

Transfer of Heavy Metals (Cd, Pb, Cu and Zn) from Roadside Soil to Ornamental Plants in Nanjing, China

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