Chemical partitioning of Cu, Pb and Zn in the soil profile of a semi arid dry woodland

Prusty, B. Anjan Kumar; Chandra, Rachna; Azeez, P. A.

doi:10.3184/095422909x466103

Cited by 8 publications

(1 citation statement)

References 11 publications

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“…Heavy metal concentrations in bottom sediment have been used to indicate environmental pollution in different ecosystems, viz., rivers 20 , 21 , streams 22 , wetlands 23 – 26 , forests 27 , grasslands 28 , and marine ecosystems 29 . The heavy metal load in bottom sediments in wetlands can indicate both natural sources and human-caused activities, as industrial waste channelled through streams, rivers, and agricultural runoff 23 , 30 – 32 .…”

Section: Introductionmentioning

confidence: 99%

Assessment of environmental and carcinogenic health hazards from heavy metal contamination in sediments of wetlands

Panda,

Mohanta,

Paul

et al. 2023

Sci Rep

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Sediment contamination jeopardizes wetlands by harming aquatic organisms, disrupting food webs, and reducing biodiversity. Carcinogenic substances like heavy metals bioaccumulate in sediments and expose consumers to a greater risk of cancer. This study reports Pb, Cr, Cu, and Zn levels in sediments from eight wetlands in India. The Pb (51.25 ± 4.46 µg/g) and Cr (266 ± 6.95 µg/g) concentrations were highest in Hirakud, Cu (34.27 ± 2.2 µg/g) in Bhadrak, and Zn (55.45 ± 2.93 µg/g) in Koraput. The mean Pb, Cr, and Cu values in sediments exceeded the toxicity reference value. The contamination factor for Cr was the highest of the four metals studied at Hirakud (CF = 7.60) and Talcher (CF = 6.97). Furthermore, high and moderate positive correlations were observed between Cu and Zn (r = 0.77) and Pb and Cr (r = 0.36), respectively, across all sites. Cancer patients were found to be more concentrated in areas with higher concentrations of Pb and Cr, which are more carcinogenic. The link between heavy metals in wetland sediments and human cancer could be used to make policies that limit people's exposure to heavy metals and protect their health.

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Section: Introductionmentioning

confidence: 99%

Assessment of environmental and carcinogenic health hazards from heavy metal contamination in sediments of wetlands

Panda,

Mohanta,

Paul

et al. 2023

Sci Rep

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Spatial variability and temporal changes in the trace metal content of soils: implications for mine restoration plan

Chandra

Prusty

Azeez

2014

Environ Monit Assess

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Trace metals in soils may be inherited from the parent materials or added to the system due to anthropogenic activities. In proposed mining areas, trace metals become an integral part of the soil system. Usually, researchers undertake experiments on plant species selection (for the restoration plan) only after the termination of mining activities, i.e. without any pre-mining information about the soil-plant interactions. Though not shown in studies, it is clear that several recovery plans remain unsuccessful while carrying out restoration experiments. Therefore, we hypothesize that to restore the area effectively, it is imperative to consider the pre-mining scenario of metal levels in parent material as well as the vegetation ecology of the region. With these specifics, we examined the concentrations of trace metals in parent soils at three proposed bauxite locations in the Eastern Ghats, India, and compared them at a spatio-temporal scale. Vegetation quantification and other basic soil parameters accounted for establishing the connection between soil and plants. The study recorded significant spatial heterogeneity in trace metal concentrations and the role of vegetation on metal availability. Oxidation reduction potential (ORP), pH and cation exchange capacity (CEC) directly influenced metal content, and Cu and Ni were lithogenic in origin. It implies that for effective restoration plant species varies for each geological location.

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Metal speciation in sediment and bioaccumulation in Meretrix lyrata in the Tien Estuary in Vietnam

Hop

Dieu

Phong

2017

Environ Monit Assess

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The concentrations of seven toxic metals (cadmium (Cd), nickel (Ni), chromium (Cr), arsenic (As), lead (Pb), copper (Cu), and zinc (Zn)) were determined in sediments and the soft tissues of a bivalve species (Meretrix lyrata) collected from the Tien Estuary in Tien Giang Province, South Vietnam. The total metal concentrations in sediments (mg/kg dry weight) increased as Cd (0.06) < Cu (5.0) < Pb (13.9) < As (16.3) < Ni (24) < Cr (50) < Zn (62). Speciation analysis revealed that these metals existed mainly in the residual fraction (43-94%), followed by the Fe-Mn oxide-bound (5-35%) and organic/sulfide-bound (0.6-9.2%) fractions. The metal concentrations in M. lyrata (mg/kg dry weight) were in the ranges of 1.3-1.9 (Cd), 1.5-2.8 (Ni), 1.8-3.4 (Cr), 11-16 (As), 0.3-0.6 (Pb), 6.9-8.7 (Cu), and 95-128 (Zn), which are safe for human consumption. The order of the mean biota-sediment accumulation factor (BSAF) of the metals in the non-residual fractions of the sediment for M. lyrata was Cd > Cu > As > Zn > Cr > Ni > Pb. The Risk Assessment Codes (RACs) suggest that the highest mobility of Cd (with RAC = 37%) poses greater environmental risk to aquatic biota. Correlation analysis results show that M. lyrata can be used as a biomonitor of Cd and Cu pollution in the exchangeable, acid-soluble, and non-residual sediment fractions.

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Chemical partitioning of Cu, Pb and Zn in the soil profile of a semi arid dry woodland

Cited by 8 publications

References 11 publications

Assessment of environmental and carcinogenic health hazards from heavy metal contamination in sediments of wetlands

Assessment of environmental and carcinogenic health hazards from heavy metal contamination in sediments of wetlands

Spatial variability and temporal changes in the trace metal content of soils: implications for mine restoration plan

Metal speciation in sediment and bioaccumulation in Meretrix lyrata in the Tien Estuary in Vietnam

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