Characterization and composition of heavy metals and persistent organic pollutants in water and estuarine sediments from Gao-ping River, Taiwan

Doong, Ruey‐an; Lee, Shih-hui; Lee, Chun-chee; Sun, Yuh‐Chang; Wu, Shang-Chuen

doi:10.1016/j.marpolbul.2007.12.015

Cited by 95 publications

(24 citation statements)

References 42 publications

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“…3). This kind of spatial distribution fully agreed with previous reports about different estuaries made by other authors, like Acevedo-Figueroa et al (2006), when referring to sediments from estuarine lagoons from Puerto Rico, or Doong et al (2008) in the Gao-Ping river estuary, Taiwan, among others. Moreover, the recorded differences between metal concentrations within these two areas were very important (p \ 0.01).…”

Section: Discussionsupporting

confidence: 92%

“…In addition, estuarine characteristics also determine the corresponding pollutants behavior; thus, depending on the nature of the contaminant and the estuarine condition, two different features are possible during the mixing: (1) either the contaminant is removed from the water to settle in the sediments (sediments as a sink), or (2) contaminants are added to the water as they rise from the sediments (sediments as a source) (Erftemeijer and Lewis 2006). Furthermore, it is necessary to keep in mind that the natural occurrence of metals complicates the assessment of contaminated marine sediments because quantifiable levels of metals do not allow to automatically inferring anthropogenic enrichment (Osher et al 2006;Doong et al 2008). In this sense, the occurrence of a linear relationship between inert elements (named conservative or normalized elements, such as iron and aluminum) and the fine particle-size fractions (silt ?…”

Section: Introductionmentioning

confidence: 99%

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Geochemical Control of Heavy Metal Concentrations and Distribution Within Bahia Blanca Estuary (Argentina)

et al. 2009

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Chromium and lead concentrations and distribution have been fully studied within Bahía Blanca estuary inner area, which is strongly influenced by urban and industrial stress. Not only metals dissolved in estuarine water but also those included in sediments and suspended particulate matters (SPM) were measured. In all cases, internationally standardized protocols were applied to metal measurements, including analytical quality check test through analysis of certified reference materials. Total metal contents from surface sediments and SPM were compared with those from a historical database of the area, as well as with values representing the natural geochemical baseline within the system. Results showed that heavy metal pollution is mainly localized in the areas close to both industrial effluents discharge system and urban sewage outfall discharge. Data from sequential extractions indicate that metals from anthropogenic sources (i.e., Pb) are potentially more mobile than those inherited from geological parent material (i.e., Cr). The influences of other potential sources of metals (i.e., streams, runoff) were also considered. SPM was clearly identified as the main carrier of the studied heavy metals within the system, and its significance to metals input into sediments and/or biota was verified. Finally, the normalization of measured metal concentrations against background reference elements (i.e., Al or Fe) has allowed to identify that most of the measured Cr was lithogenic, while a significant percentage of Pb was from anthropogenic origin within Bahía Blanca estuary.

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Section: Discussionsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Geochemical Control of Heavy Metal Concentrations and Distribution Within Bahia Blanca Estuary (Argentina)

et al. 2009

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“…Concentrations of PCBs in the East Lake were comparable to the data for locations such as Wuhan section of the Yangtze River in China (Yang et al 2009). However, the levels of PCBs in the sediments from the East Lake were higher than those in the Gao-ping River (Doong et al 2008), Tonghui River (Zhang et al 2004) and Songhua River (You et al 2011).…”

Section: Resultsmentioning

confidence: 78%

Concentrations and risk assessment of polychlorinated biphenyls and polybrominated diphenyl ethers in surface sediments from the East Lake, China

et al. 2014

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The concentrations of polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs) in surface sediment samples collected from the East Lake, China in winter 2012 and summer 2013 were analyzed in this study. The total PCB and PBDE concentrations ranged from not detected to 107.1 ng g(-1) dw and from 9.7 to 151.3 ng g(-1) dw, respectively. PCB-28, 101 and 180 were dominant congeners in both winter and summer. BDE-28 (44 %) was the dominant congener in winter and summer, followed by BDE-99 (28 %) and BDE-47 (26 %). The concentrations of PCBs in the sediment samples collected in summer were higher than those in winter, while the concentrations of PBDEs did not show much seasonal variations. Source analysis showed that the PCBs probably originated from urban runoff, industrial pollution and atmospheric deposition, and the PBDEs probably originated from historical usage of penta-BDE mixtures. Potential eco-toxicological risks caused by PCBs were found in about 5 % of the sampling sites; PBDEs had moderate eco-toxicological risk in 80 % sampling sites in the East Lake, China.

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“…Several studies have investigated the historical records of OCPs in sediment cores from marine and estuary environments [8,9]; however, limited data are available regarding the sedimentary records of OCPs in inland aquatic ecosystems -particularly in water, suspended solids, and sediments from rivers in arid and semiarid regions. Studies about OCP contamination in rivers in China [10][11][12][13] show that almost all of these rivers are located in humid and semi-humid regions rather than in arid and semiarid regions. However, as a typical river, the Weihe belongs to an arid and semiarid region in northwest China and is the biggest tributary of the Yellow River.…”

Section: Introductionmentioning

confidence: 99%

Residues and Distributions of Organochlorine Pesticides in China’s Weihe River

Wang¹,

Yang²,

Wang³

et al. 2016

Pol. J. Environ. Stud.

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To exam ine the residues and distributions of hexachlorocyclohexanes (HCHs), dichlorodiphenyltrichloroethane (DDT), and other organochlorine pesticides (OCPs ) in the Weihe River basin of northwest China, a gas chromatography-mass spectrometer (GC-MS) was employed to analyze the samples collected from surface water, suspended solids, and sediments. Res ults showed t hat total concentrations of HCHs, DDT, and othe r OCPs in surface water were in the range of 2. 41-178.18, 0.94-116.83, and 3.64-37.17 ng/L, respectiv ely; in suspended solids they were 5 1.76-241.23, 2.82-12.23, and 11.35-37.67 ng/L, respectively; and in sediments they were 74. 13-517.49, 1.20-370.98, and 7.94-110.13 ng/g dry weight, respectively. The α-HCH/γ-HCH ratio indicated that historical usage of technical mixtures of HCHs was the main source of HCHs. The DDT ratio indicated that DDT at most sites came from older uses of technical DDT. Compared with some guideline values of OCPs in surface water, the concentrations of HCHs and DDT were at safe levels. Meanwhile, the Weihe Riv er sediments have high ecological risk pesticides.

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Characterization and composition of heavy metals and persistent organic pollutants in water and estuarine sediments from Gao-ping River, Taiwan

Cited by 95 publications

References 42 publications

Geochemical Control of Heavy Metal Concentrations and Distribution Within Bahia Blanca Estuary (Argentina)

Geochemical Control of Heavy Metal Concentrations and Distribution Within Bahia Blanca Estuary (Argentina)

Concentrations and risk assessment of polychlorinated biphenyls and polybrominated diphenyl ethers in surface sediments from the East Lake, China

Residues and Distributions of Organochlorine Pesticides in China’s Weihe River

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