Heavy Metal Pollution and Potential Ecological Risk Assessment in a Typical Mariculture Area in Western Guangdong

He, Ning; Liu, Lanzhou; Wei, Ren; Sun, Kun

doi:10.3390/ijerph182111245

Cited by 17 publications

(13 citation statements)

References 38 publications

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“…Once these heavy metals enter food crops, they can pose adverse effects upon the consumption of contaminated vegetables and 2 of 24 grains. Soil pollution, on account of heavy metals, has turned out to be a serious problem in developing countries due to the increasing number of pollution sources [10]. Various anthropogenic activities, including automobile emissions, traffic activities and industrial activities, can cause heavy metals to diffuse into urbanized environments [11].…”

Section: Introductionmentioning

confidence: 99%

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Assessment of the Heavy Metal Contamination of Roadside Soils Alongside Buddha Nullah, Ludhiana, (Punjab) India

Kaur

Bhat

Singh

et al. 2022

IJERPH

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The present study was carried out to determine the physico-chemical characteristics and heavy metal contents in roadside soil samples collected during 2 sampling periods (September 2018 and April 2019) from 8 different roadside sites lying parallel to the Buddha Nullah, an old rivulet, flowing through Ludhiana, (Punjab) India. The contents (mg/kg) of seven metals (cadmium, chromium, cobalt, copper, lead, nickel and zinc) were estimated using a flame atomic absorption spectrophotometer. Among the metals analyzed, the contents of Cd, Co, Cu, Pb and Zn were found above the permissible limits. The results of the index of geoaccumulation (Igeo), contamination factor (CF), contamination degree (Cdeg), modified contamination degree (mCdeg), the Nemerow pollution index (PI) and pollution load index (PLI) indicate a moderate to high heavy metal contamination of the analyzed soil samples. The results of the potential ecological risk factor (ERi) and potential ecological risk index (RI) indicate a low to moderate risk of heavy metals in the studied soil samples. The Pearson correlation analysis revealed that most of the variables exhibited a statistically significant correlation with one or more variables during the two samplings. Multivariate analysis demonstrates that contents of heavy metals in the study area are influenced by anthropogenic and geogenic factors.

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Section: Introductionmentioning

confidence: 99%

“…It is well established that soil physico-chemical characterization plays a key role in exploring the composition of soil and evaluating soil pollution [26,27]. Many studies across the world have been conducted to explore the physico-chemical characteristics of roadside soil in different regions [10,[28][29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Assessment of the Heavy Metal Contamination of Roadside Soils Alongside Buddha Nullah, Ludhiana, (Punjab) India

Kaur

Bhat

Singh

et al. 2022

IJERPH

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“…where PN is the comprehensive pollution index, and (C i /S i ) ave and (C i /S i ) max are the average and maximum values of the single-factor contaminant index, respectively [ 10 ].…”

Section: Methodsmentioning

confidence: 99%

Phytochemical characterization, antioxidant potential, and health risk assessment of Radix Oryzae Glutinosae

Liu¹,

Tang²,

Ren³

et al. 2022

Journal of Food and Drug Analysis

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Radix Oryzae Glutinosae (ROG) has been used as a traditional anhidrotic agent in China. Ten samples were systematically assessed based on four aspects of their chemical profiles and antioxidant activity. The former was achieved using ultraviolet-visible spectra (UV), infrared absorption spectra (IR), proton nuclear magnetic resonance spectroscopy ( 1 H NMR), and inductively coupled plasma-mass spectrometry (ICP-MS) fingerprints, and antioxidant activity was assessed using the 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay, the 2,2′-azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS) assay, and the ferric reducing antioxidant power (FRAP) assay. The presence of amino acids, flavonoids, organic acids, and sugars was indicated in all samples. A hierarchical cluster analysis and a canonical discriminant analysis were introduced to interpret the results of the multi-pattern fingerprint. The results of the correlations between the individual elements and between each element with the different types of metabolites displayed many interesting patterns. In vitro studies revealed that all samples displayed antioxidant activities. A pollution status examination and heavy metal evaluation of the ROG samples were performed. The human health risk assessment associated with the intake of potentially harmful elements in herbs was calculated in terms of the estimated daily intake, the target hazard quotient, and the lifetime cancer risk. The Nemerow multi-factor pollution index results suggested that all samples belonged to the serious pollution level. The results of the noncarcinogenic risk assessment study indicated that the pattern of consumption of this herb in China seems to suggest an excessive health hazard associated with some toxic elements studied. The carcinogenic risk results suggested that there is a potential risk due to As, Cr, Cd, and Ni for consumers, and these may contribute to the population cancer burden through ROG ingestion. This study provides insights into the organic medicinal constituents and the trace elements of the herb. The results will enable this herb to be used more effectively and safely.

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“…This can objectively show the area’s water quality. Unlike other pollutants in water bodies, heavy metal contaminants cannot be efficiently eliminated by natural decomposition processes and instead accumulate in sediments in different ways [ 4 , 5 , 6 ]. In most cases, more than 95% of heavy metals in water bodies are eliminated and stored in sediments in various forms [ 7 , 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

Distribution, Assessment, and Source of Heavy Metals in Sediments of the Qinjiang River, China

Zhang

Chen

et al. 2022

IJERPH

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Heavy metals are toxic, persistent, and non-degradable. After sedimentation and adsorption, they accumulate in water sediments. The aim of this study was to assess the extent of heavy metal pollution of Qinjiang River sediments and its effects on the ecological environment and apportioning sources. The mean total concentrations of Mn, Zn, Cr, Cu, and Pb are 3.14, 2.33, 1.39, 5.79, and 1.33 times higher than the background values, respectively. Co, Ni, and Cd concentrations are lower than the background values. Fe, Co, Ni, Cd, Cr, Cu, and Pb are all primarily in the residual state, while Mn and Zn are primarily in the acid-soluble and oxidizable states, respectively. Igeo, RI, SQGs, and RAC together indicate that the pollution status and ecological risk of heavy metals in Qinjiang River sediments are generally moderate; among them, Fe, Co, Ni, Cd, Cr, and Pb are not harmful to the ecological environment of the Qinjiang River. Cu is not readily released because of its higher residual composition, suggesting that Cu is less harmful to the ecological environment. Mn and Zn, as the primary pollution factors of the Qinjiang River, are harmful to the ecological environment. This heavy metal pollution in surface sediments of the Qinjiang River primarily comes from manganese and zinc ore mining. Manganese carbonate and its weathered secondary manganese oxide are frequently associated with a significant amount of residual copper and Cd, as a higher pH is suitable for the deposition and enrichment of these heavy metals. Lead–zinc ore and its weathering products form organic compounds with residual Fe, Co, Cr, and Ni, and their content is related to salinity. The risk assessment results of heavy metals in sediments provide an important theoretical basis for the prevention and control of heavy metal pollution in Qinjiang River.

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Heavy Metal Pollution and Potential Ecological Risk Assessment in a Typical Mariculture Area in Western Guangdong

Cited by 17 publications

References 38 publications

Assessment of the Heavy Metal Contamination of Roadside Soils Alongside Buddha Nullah, Ludhiana, (Punjab) India

Assessment of the Heavy Metal Contamination of Roadside Soils Alongside Buddha Nullah, Ludhiana, (Punjab) India

Phytochemical characterization, antioxidant potential, and health risk assessment of Radix Oryzae Glutinosae

Distribution, Assessment, and Source of Heavy Metals in Sediments of the Qinjiang River, China

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