Cadmium distribution in sediment profiles of the six main rivers in southern Taiwan

Tsai, Li‐Jyur; Yu, Kuang‐Chung; Ho, Shien-Tsong

doi:10.1016/j.jhazmat.2007.03.024

Cited by 16 publications

(6 citation statements)

References 15 publications

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“…Based on the data in Fig. 3, the sedimentary concentration of heavy metals in profile in Poyang Lake five rivers, especially Cd, is obviously lower than that in west-four Pearl Rivers [35] and main rivers in southern Taiwan [36], even lower in one order gratitude. Although large copper mines are located at upstream of these rivers, it seems no obvious influence on heavy metals pollution in Poyang Lake area.…”

Section: Vertical Distribution Of Heavy Metals In Sedimentary Coresmentioning

confidence: 96%

Inputting history of heavy metals into the inland lake recorded in sediment profiles: Poyang Lake in China

Yuan

Liu

Chen

et al. 2011

Journal of Hazardous Materials

151

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Section: Vertical Distribution Of Heavy Metals In Sedimentary Coresmentioning

confidence: 96%

Inputting history of heavy metals into the inland lake recorded in sediment profiles: Poyang Lake in China

Yuan

Liu

Chen

et al. 2011

Journal of Hazardous Materials

151

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“…In the past 2 decades, pollution sources such as accidental or deliberate industrial wastewater discharge, or certain cases of heavy metal pollution, eg, cadmium (Cd) or chromium (Cr) pollution on farmland or in certain rivers in Southern Taiwan, have been identified and reported. 10–13 However, the status of trace element identification and quantification in the aquatic environment around the world’s second largest CFPP and its CCR dumping sites in Central Taiwan remains unexplored. It is notable that organic chemicals, trace metals, or metalloids, such as As, Cr, Cd, Ni, and Pb, would cause more environmental contamination.…”

Section: Introductionmentioning

confidence: 99%

A Pilot Survey of Potentially Hazardous Trace Elements in the Aquatic Environment Near a Coastal Coal-Fired Power Plant in Taiwan

Kok

Winn²,

Hsieh³

et al. 2019

Environ�Health�Insights

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Background: A limited number of potentially hazardous trace elements were quantified in the aquatic environment near the world’s second largest coal-fired power plant (CFPP) and the coal combustion residual (CCR) disposition sites in Central Taiwan. We postulated that contamination from specific trace elements would be present in the abovementioned aquatic environments. Methods: Cross-sectional sampling of trace elements was first performed between September 24, 2017 and October 3, 2017 outside the CFPP, in the effluent sampled from Changhua, a county south of metropolitan Taichung, and at the historical CCR disposal sites, using the intertidal zone surface seawater and the seawater in an oyster farm as controls. Aqueous samples were collected from 12 locations for analysis of 13 trace elements (Al, As, B, Cd, total Cr, Co, Fe, Pb, Mn, Se, Sr, Tl, and V). We used inductively coupled plasma (ICP) optical emission spectrometry to determine B and Fe levels, and ICP mass spectrometry for all other trace elements. The Spearman rank correlation coefficient (Rho) was calculated to examine the pairwise relation among the trace elements. Results: Al (50% of all samples), B (66.7%), Fe (25%), Mn (50%), Sr (8.3%), and V (25%) were identified as being above the Environmental Protection Agency (EPA) regulation limit. The oyster farm seawater had no concerns. Mn (96.4 μg/L) in the CFPP drainage effluent was 1.9-fold above the regulation limit. Fe, Mn, and V were detected from the cooling channel at 4379, 625, and 11.3 μg/L, respectively. The effluent and water from the areas surrounding the 2 CCR dump sites revealed similar magnitudes of trace element contamination. B is highly correlated with Sr (Rho = 0.94, 95% confidence interval [CI], 0.80-0.98). Meanwhile, Fe is highly correlated with Al (Rho = 0.77), Pb (Rho = 0.71), Co (Rho = 0.75), and V (Rho = 0.84). Conclusions: The EPA must set an explicit regulation limit for aluminum, boron, iron, and strontium in the aquatic environment. This exploratory research will inform policymaking regarding certain trace elements that could potentially have an adverse impact on public health and wildlife.

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“…Metal concentration and physical parameters are compared to wetland quality guidelines to protect the ecosystem (Farkas et al, 2007). The rate of water pollution varies seasonally, depending on discharge, ow rates and interactions with the environment (Tsai et al, 2007;USEPA, 2001). Seasons in Nigeria may be classi ed as dry or wet; the dry seasons.…”

Section: Introductionmentioning

confidence: 99%

Total Metals in University of Lagos Wetlands and Sediments and Their Spatial Distribution

Sowunmi

Titilayo

Sowunmi

2020

Preprint

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Wetlands are carriers of metals and organic pollutants from natural and anthropogenic sources. Studies have shown that sediments are sinks for these pollutants as they carry more than 99% of the total amount of metals which are released as soluble metals into the Lagoon. The University of Lagos, located at Akoka North eastern part of Yaba in Lagos Mainland runs along a highly industrialized and residential area. This paper reports the total metal concentrations in wetland and sediment and their seasonal variations. Wetland and sediment samples were collected for two seasons in 8 sampling sites. Results showed wetland data having lower concentrations of metals as compared to sediments. Wet season had higher concentrations of metals as compared to other season. Total concentrations in wetlands were Cd (1.0-6.0), Cu (1.0-11.0), Cr (0.3-82.7), Zn (2.7-65.0) and Pb (0.3-16.0) all in μg L-1 respectively. Statistical analysis showed that there was a significant difference between the wet and dry seasons for sediments. Cd was the only metal at acceptable levels while Cr, Cu, Pb and Zn concentrations all exceeded levels deemed acceptable by the SABS and the EPA. Therefore, the wetland is in poor health.

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Cadmium distribution in sediment profiles of the six main rivers in southern Taiwan

Cited by 16 publications

References 15 publications

Inputting history of heavy metals into the inland lake recorded in sediment profiles: Poyang Lake in China

Inputting history of heavy metals into the inland lake recorded in sediment profiles: Poyang Lake in China

A Pilot Survey of Potentially Hazardous Trace Elements in the Aquatic Environment Near a Coastal Coal-Fired Power Plant in Taiwan

Total Metals in University of Lagos Wetlands and Sediments and Their Spatial Distribution

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