Sedimentary metals in developing tropical watersheds in relation to their urbanization intensities

Namngam, Natchaya; Xue, Wenchao; Liu, Xun; Kootattep, Thammarat; Shrestha, Rajendra P.; Wattayakorn, Gullaya; Tabucanon, Allan Sriratana; Yu, Shen

doi:10.1016/j.jenvman.2020.111521

Cited by 19 publications

(11 citation statements)

References 31 publications

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“…were two times and nineteen times higher than the guideline values for threatening aquatic organisms and for drinking water purpose (Table 3). Motor exhaust contributes a signi cant amount of Pb to the water body, in addition to oil leakage from boats and steamers (Namngam et al, 2021). These ndings indicated that these PTEs are mainly controlled by anthropogenic processes.…”

Section: Eco-environmental Appraisals Of Ptes In Sedimentmentioning

confidence: 96%

“…Pb can come into the river sediments from urban waste leach out comprising Ni-Cd batteries from automobile factories, batteries, and smelting electroplants (Fang et al 2019). Earlier cited work revealed that Pb and Zn in the riverine basin were likely attributed to release from industrial sewages and wastes(Islam et al, 2020a;Namngam et al, 2021). Currently, this is occurring daily at the study site near the gold mine as a dumpling sites for their wastewater materials.…”

mentioning

confidence: 88%

“…Cd containing alloys, foils, oils, and other applications use Cd that deposited into riverbed sediment(Namngam et al, 2021). Pb can come into the river sediments from urban waste leach out comprising Ni-Cd batteries from automobile factories, batteries, and smelting electroplants (Fang et al 2019).…”

mentioning

confidence: 99%

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Potentially Toxic Elemental Contamination in Wainivesi River, Fiji Impacted by Gold-mining Activities using Chemometric Tools and SOM Analysis

Kumar¹,

Islam

Hasanuzzaman

et al. 2021

Preprint

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Potentially toxic elements (PTEs) contamination in Wainivesi River, Fiji triggered by gold-mining activities is a major public health concern deserving attention. However, chemometric approaches and pattern recognition of PTEs in surface water and sediment are yet hardly studied in Pacific Island countries like Fijin urban River. In our study, twenty-four sediment and eight water sampling sites from the Wainivesi River, Fiji were explored to evaluate the spatial pattern, eco-environmental pollution, and source apportionment of PTEs. This analysis was done using an integrated approach of self-organizing map (SOM), principle component analysis (PCA), hierarchical cluster analysis (HCA), and indexical approaches. The PTEs average concentration is decreasing order of Fe > Pb > Zn > Ni > Cr > Cu > Mn > Co > Cd for water and Fe > Zn > Pb > Mn > Cr > Ni > Cu > Co > Cd for sediment, respectively. Outcomes of eco-environmental indices including contamination and enrichment factors, and geo-accumulation index differed spatially indicated that majority of the sediment sites were highly polluted by Zn, Cd, and Ni. Cd and Ni contents can cause both ecological and human health risks. According to PCA, two sources such as point and geogenic sources for sediment and also two sources including weathering of rock-water and anthropogenic sources of PTEs for water were identified in the study area. The SOM analysis identified three spatial patterns e.g., Cr-Co-Zn-Mn, Fe-Cd and Ni-Pb-Cu in water and Zn-Cd-Cu-Mn, Cr-Ni and Fe, Co-Pb in sediment. Spatial distribution of entropy water quality index values depicted that northern and northwestern areas possess ‘poor’ to ‘extremely-poor’ quality water. The entropy weights indicated Zn, Cd and Cu as the major pollutants in deteriorating the water quality. Our finding provides a baseline database with eco-environmental and health risk measures for the Wainivesi river contamination.

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Section: Eco-environmental Appraisals Of Ptes In Sedimentmentioning

confidence: 96%

mentioning

confidence: 88%

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Potentially Toxic Elemental Contamination in Wainivesi River, Fiji Impacted by Gold-mining Activities using Chemometric Tools and SOM Analysis

Kumar¹,

Islam

Hasanuzzaman

et al. 2021

Preprint

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“…Worldwide, agriculture is considered one of the main activities that infl uence water quality. However, industrial activities and urbanization in watersheds can generate even more signifi cant impacts by adding phosphorus, sediments, and PTEs to aquatic ecosystems in various world regions (Mahler et al 2006, Ma et al 2016, Huang et al 2018, Namngam et al 2021. However, the lack of information remains in less developed countries, where increasingly rapid urbanization is occurring.…”

Section: Introductionmentioning

confidence: 99%

“…Potentially toxic elements are a group of hazardous non-biodegradable contaminants with environmental persistence, bioaccumulation, and considerable toxicity (Namngam et al 2021). Potentially toxic elements in agricultural or urban soils can exert human health risk attributed to crop consumption and chronic exposure to soil particles (Huang et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Effects of riparian land use changes on soil attributes and concentrations of potentially toxic elements

Cunha

Faria

Nascimento

et al. 2021

An. Acad. Bras. Ciênc.

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Riparian zones are intrinsically sensitive habitats to anthropogenic disturbances. Knowledge about how riparian soil attributes respond to anthropogenic changes remains limited. This information would allow the prediction of degradation and contamination soil scenarios that threaten water quality for supply. Here, we studied the impact on soil quality and concentration that potentially toxic elements caused through changes in land use in riparian soils in northeastern Brazil. A total of thirty riparian soil composite samples were collected from areas with different land use and evaluated for physical and chemical attributes, in addition to potentially toxic elements (Cd, Cr, Cu, Fe, Mn, Ni, Pb, and Zn). The results showed that replacing the natural vegetation in the riparian zone led to degradation gradient: pasture < agricultural < urban < industrial use. Soil attributes were sensitive in distinguishing the degree of degradation of each land use. Concentrations of the potentially toxic elements Cd and Zn are above the background soil concentrations and may pose a risk to the environment and human health. Our data can be helpful to understand better the complex relationship between land use and environmental impacts in riparian zones in northeastern Brazil and similar settings worldwide.

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Trace Metal Concentrations in Surface Water Along the Yangtze River in Chongqing, China: Urban Discharge Impacts

Jiang

Gao

Jiang

et al. 2022

Bull Environ Contam Toxicol

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Sedimentary metals in developing tropical watersheds in relation to their urbanization intensities

Cited by 19 publications

References 31 publications

Potentially Toxic Elemental Contamination in Wainivesi River, Fiji Impacted by Gold-mining Activities using Chemometric Tools and SOM Analysis

Potentially Toxic Elemental Contamination in Wainivesi River, Fiji Impacted by Gold-mining Activities using Chemometric Tools and SOM Analysis

Effects of riparian land use changes on soil attributes and concentrations of potentially toxic elements

Trace Metal Concentrations in Surface Water Along the Yangtze River in Chongqing, China: Urban Discharge Impacts

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