Multivariate analyses on heavy metal binding fractions of river sediments in Southern Taiwan

2000 ◽  
Vol 42 (7-8) ◽  
pp. 193-199 ◽  
Author(s):  
K. C. Yu ◽  
C. Y. Chang ◽  
L. J. Tsai ◽  
S. T. Ho
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Organic Matter ◽  
Metal Binding ◽  
River Sediments ◽  
Principal Component ◽  
Fe Oxides ◽  
Data Points ◽  
Southern Taiwan ◽  
Highly Correlated

This study depicts the amounts of heavy metals (Cu, Zn, Pb, Cr, Co, and Ni) bound to four geochemical compositions of sediments (carbonates, Mn oxides, Fe oxides, and organic matters), and the correlations between various geochemical compositions and their heavy-metal complexes. Hundreds of data, obtained from sediments of five main rivers (located in southern Taiwan), were analyzed by using multivariate analysis method. Among the four different geochemical compositions, the total amount of the six heavy metals bound to organic matter is the highest. Zn is easily bound to various geochemical compositions, especially carbonates in sediments of the Yenshui river and the Potzu river (i.e., the heavily heavy-metal polluted sediments); Cr, Pb, and Ni are mainly bound to both Fe oxides and organic matter; Cu has high affinity to organic matter. By performing principal component analyses, the data points of organic matter and both Pb and Cu associated with organic matter cluster together in sediments ofthe Peikang, the Potzu, and the Yenshui rivers, which indicates both Pb and Cu might be discharged from the same pollution sources in these rivers. Moreover, correlations between any two binding fractions of heavy metal associated with Fe oxides in different rivers are not consistent, which indicates some factors including the binding sites of Fe oxides, the extent of heavy metal pollution, binding competitions between heavy metals may affect the amounts of heavy metals bound to Fe oxides. Furthermore, it should be noted that the amount of Pb bound to Fe oxides is highly correlated with the amount of Fe oxides in sediments of the Peikang, the Potzu, and the Yenshui rivers.

Spatial distribution of heavy metals in bottom sediment of Yenshui river, Taiwan

1998 ◽  
Vol 38 (11) ◽  
pp. 159-167 ◽  
Author(s):  
Jing-Song Chang ◽  
Kuang-Chung Yu ◽  
Li-Jyur Tsai ◽  
Shien-Tsong Ho
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Depth Profile ◽  
Metal Binding ◽  
Sediment Cores ◽  
Extraction Procedure ◽  
Principal Component ◽  
Pollution Source ◽  
Binding Forms ◽  
Heavy Metal Binding

Distribution of heavy metals in bottom sediments from heavily polluted section of Yenshui river, located in the southern Taiwan, are presented. Sediment cores of seven sites were separated into several cuts and analyzed with both sequential extraction procedure (SEP) to realize the heavy metal contents (including Cr, Co, Zn, Ni, Pb, Cu and Cd) among binding fractions of different sediment depth and multivariate analysis (MA) to conduct the correlations of heavy metal variation in depth profile. Results show that distribution of heavy metals in depth profile of sediment is not identical among different sites. Levels of Zn, Cr, Cu and Ni were higher than other metals, and within the ranges of 30–200 mg/Kg, 8–160 mg/Kg, 5–130 mg/Kg, 10–100 mg/Kg, respectively. The major binding forms of Zn, Cr and Cu in sediment were ‘bound to carbonates’, ‘bound to Fe oxides’ and ‘bound to organic matter’ respectively. And, the percentages of different heavy metal binding forms were not significantly varied in depth profile. Results of principal component analyses (PCA) demonstrate that Cr, Ni and Cu were clustered, which indicate these metals had similar loadings in sediment profile, and might be discharged from the same pollution source of electroplating industry.

Fractionation of heavy metals in sediment cores from the Ell-Ren River, Taiwan

1998 ◽  
Vol 37 (6-7) ◽  
pp. 217-224 ◽  
Author(s):  
L. J. Tsai ◽  
K. C. Yu ◽  
J. S. Chang ◽  
S. T. Ho
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Organic Matter ◽  
Metal Binding ◽  
Multivariate Analyses ◽  
Sediment Cores ◽  
Extraction Procedure ◽  
Sediment Depth ◽  
Heavy Metal Binding ◽  
Organic Matter Fractions

Fractionation of heavy metals (Cr, Cu, Co, Zn, Ni, and Pb) in sediment cores taken from three heavily polluted locations of the Ell-Ren River in southern Taiwan was studied. After the three sediment cores were separated into several depth sections, sequential extraction procedure was used to determine the variations in heavy metal binding fractions (exchangeable, bound to carbonates, bound to Mn oxides, bound to Fe oxides, and bound to organic matter) with different sediment depth, and followed by multivariate analyses. It turns out that a deeper sediment depth tended to result in smaller amounts of total extractable heavy metals (TEHMs), indicating that heavy metal pollution of the river has been intensifying these years. The decreasing order of TEHMs was: Zn > Cu > Pb > Cr > Ni > Co. The TEHMs Zn and Cu detected from different depth of the three sediment cores were mainly originated from “bound to carbonates” and “bound to organic matter” fractions, respectively. Also, the percentages of the heavy metals contained in each of the five binding fractons only slightly varied with sediment depth. From multivariate analyses, all the heavy metals except Co behaved similarly and might be discharged from the same pollution sources.

scholarly journals Heavy-metal pollution alters dissolved organic matter released by bloom-forming Microcystis aeruginosa

RSC Advances ◽  
2017 ◽  
Vol 7 (30) ◽  
pp. 18421-18427 ◽  
Author(s):  
Haiming Wu ◽  
Li Lin ◽  
Guangzhu Shen ◽  
Ming Li
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Microcystis Aeruginosa ◽  
Metal Pollution ◽  
Heavy Metal Pollution ◽  
Aquatic Ecosystems ◽  
Eutrophic Lakes

The risk of heavy metals to aquatic ecosystems was paid much attention in recent years, however, the knowledge on effects of heavy metals on dissolved organic matter (DOM) released byMicrocystiswas quite poor, especially in eutrophic lakes.

Effect of Vitamin E and Selenium (Se) Supplementation on Biochemical Parameters and Expression of Metallothionein (MT-2) in Heavy Metals Exposed Buffaloes

2021 ◽  
Author(s):  
Himalaya Bhardwaj ◽  
Chanchal Singh ◽  
Shashi Nayyar ◽  
Sandeep Sodhi ◽  
Rajesh Jindal
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Vitamin E ◽  
Metal Binding ◽  
Biochemical Parameters ◽  
Lactic Dehydrogenase ◽  
Oral Feeding ◽  
Farm Animals ◽  
Blood Levels ◽  
Plasma Vitamin

Background: Farm animals may serve as bio-indicators of environmental pollution. Environmental heavy metals may disrupt the normal physiological and biochemical profile of the animals. The present study was planned to reduce the stress caused by heavy metal pollution by oral feeding of vitamin E and Selenium in heavy metals exposed buffaloes.Methods: Twenty buffaloes were selected on the basis of blood levels of heavy metals and divided into exposed and non-exposed groups. Exposed animals (n=10) were orally supplemented with 20 ml/day of Cargill E care Se® containing vitamin E, 100mg/ml and Se 0.5mg/ml for 30 days. Antioxidants, biochemical parameters and the expression of metallothionein-2 were analyzed after supplementation on 0, 15 and 30 days.Result: The levels of heavy metal were found to be elevated even after 30 days of supplementation. No significant alterations were observed in activity of superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPx) after 30 days of supplementation. There was significantly (p less than 0.05) higher activity of blood glutathione and plasma Vitamin E. In supplemented group, plasma glucose, total cholesterol, aspartate transaminase (AST), alanine transaminase (ALT), alkaline phosphatase (ALP), lactic dehydrogenase (LDH), creatine kinase (CK) and total Immunoglobulin were found to be significantly reduced in supplemented group. Expression of metal binding protein, metallothionein-2 was found to be elevated in exposed animals despite supplementation with Vitamin E and Se for 30 days.

scholarly journals Research on Progress in Combined Remediation Technologies of Heavy Metal Polluted Sediment

2019 ◽  
Vol 16 (24) ◽  
pp. 5098 ◽  
Author(s):  
Min Zhang ◽  
Xiangchun Wang ◽  
Long Yang ◽  
Yangyang Chu
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
River Sediments ◽  
Aquatic Organisms ◽  
Environmental Issue ◽  
Research Progress ◽  
Contaminated Sediment ◽  
Physical Chemical ◽  
Polluted Sediments ◽  
Great Harm

Heavy metals contaminated sediment has become a worldwide environmental issue due to its great harm to human and aquatic organisms. Thus, economical, effective, and environmentally-friendly remediation technologies are urgently needed. Among which, combined remediation technologies have attracted widespread attention for their unique advantages. This paper introduces combined remediation technologies based on physical-, chemical-, and bio-remediation of heavy metal polluted sediments. Firstly, the research progress in physical-chemical, bio-chemical, and inter-organismal (including plants, animals, microorganisms) remediation of heavy metal polluted sediments are summarized. Additionally, the paper analyzes the problems of the process of combined remediation of heavy metals in river sediments and outlooks the future development trends of remediation technologies. Overall, this review provides useful technology references for the control and treatment of heavy metal pollution in river sediments.

Element Content (Cu, Fe, Mn, Ni, Pb, and Zn) of the Ruderal Plant Verbascum olympicum Boiss. from East Mediterranean

2006 ◽  
Vol 61 (5-6) ◽  
pp. 357-362 ◽  
Author(s):  
Gürcan Güleryüz ◽  
Hülya Arslan ◽  
Belgin İzgi ◽  
Şeref Güçer
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Atomic Absorption ◽  
Metal Content ◽  
Element Content ◽  
East Mediterranean ◽  
Metal Contents ◽  
Accumulation Capacity ◽  
Highly Correlated ◽  
Ruderal Plant

In this study, heavy metal content (Cu, Fe, Mn, Ni, Pb, Zn) was determined in soils and different organs of Verbascum olympicum Boiss. This species is endemic to Uludağ and spreads on destroyed areas such as: roadsides, developed building areas, ski lift stations and sheep folds. Soils and different organs (roots, stems, leaves and flowers) of plant samples were analyzed using an atomic absorption spectrophotometer for determining the element content. Heavy metal contents in soils and different organs in this species were highly correlated (P < 0.05). However, the contribution of plant organs to the accumulation capacity varied according to the metal. These results suggest that this species may be useful as a bioindicator for heavy metals.

Risk estimation and multivariate statistical analysis of the heavy metal content of drinking water samples

2018 ◽  
Vol 34 (10) ◽  
pp. 714-725
Author(s):  
Rajan Jakhu ◽  
Rohit Mehra
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Drinking Water ◽  
Statistical Analysis ◽  
Water Samples ◽  
Multivariate Statistical Analysis ◽  
Inductively Coupled Plasma ◽  
Principal Component ◽  
Multivariate Statistical ◽  
Drinking Water Samples

Drinking water samples of Jaipur and Ajmer districts of Rajasthan, India, were collected and analyzed for the measurement of concentration of heavy metals. The purpose of this study was to determine the sources of the heavy metals in the drinking water. Inductively coupled plasma mass spectrometry was used for the determination of the heavy metal concentrations, and for the statistical analysis of the data, principal component analysis and cluster analysis were performed. It was observed from the results that with respect to WHO guidelines, the water samples of some locations exceeded the contamination levels for lead (Pb), selenium (Se), and mercury (Hg), and with reference to the EPA guidelines, the samples were determined unsuitable for drinking because of high concentrations of Pb and Hg. Using multivariate statistical analysis, we determined that copper, manganese, arsenic, Se, and Hg were of anthropogenic origin, while Pb, copper, and cadmium were of geogenic origin. The present study reports the dominance of the anthropogenic contributions over geogenics in the studied area. The sources of the anthropogenic contaminants need to be investigated in a future study.

Impact of Heavy Metals on Benthic Oligochaete Communities in the River Ill and Its Tributaries

1994 ◽  
Vol 29 (3) ◽  
pp. 241-248 ◽  
Author(s):  
A. Rosso ◽  
M. Lafont ◽  
A. Exinger
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Organic Matter ◽  
Reproductive Strategy ◽  
Organic Micropollutants ◽  
Rhine Basin ◽  
Metal Contents ◽  
The Impact ◽  
The City

The aim of this research is to describe the impact of heavy metals contaminating sediments on oligochaete communities. Sediments were collected three times (June, August, October 1991) for chemical and biological analyses in 15 sites situated in the river I11 and its tributaries (Rhine Basin, France). The sediments are characterized by high contents of heavy metals, mainly Hg, Cu, Cr, Pb, Zn from below the city of Mulhouse. The majority of sediments are heavily loaded with organic matter and organic micropollutants are also present. Oligochaete communities are rich in species. However five species only, considered as pollution-tolerant or opportunist, are significantly present and abundant. The percentages of Tubificidae without hair setae are positively related to heavy metal contents of the sediments, and the percentages of Tubificidae with hair setae are negatively related. Several species such as N. communis, N. barbata, D. digitata and Bothrioneurum sp. are considered as tolerant to heavy metals; on the contrary L. claparedeanus, L. udekemianus, Stylodrilus sp. and S. josinae are considered as intolerant. The reproductive strategy of oligochaetes in contaminated areas and the role of organic matter are discussed. Several recommendations are given for the rehabilitation of the investigated sites.

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