Pollution and Potential Ecological Risk Evaluation of Heavy Metals in the Sediments around Dongjiang Harbor, Tianjin

Guo, Weihua; Liu, Xianbin; Liu, Zhanguang; Guofeng, LI

doi:10.1016/j.proenv.2010.10.084

Cited by 305 publications

(143 citation statements)

References 6 publications

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“…Guo et al (2010) reported that the order of EFs of trace metals in the sediments of the Dongjiang Harbor, Tianjin was AsNZnNCuNHgNPbNCd. According to Müller's classification (Müller, 1969), the geoaccumulation index (I geo ) of Cd, Cr, Cu, Ni, Pb and Zn in sand and silty sand sediments of the intertidal Bohai Bay presented values falling into the unpolluted class, and the I geo values of the studied metals in clayey silt sediments fell into unpolluted to moderately polluted class (Gao and Li, 2012).…”

Section: The Situation Of the Bohai Baymentioning

confidence: 99%

Pollution status of the Bohai Sea: An overview of the environmental quality assessment related trace metals

Gao

Zhou

Chen

2014

Environment International

329

170

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It is well recognized that the ecosystem of the Bohai Sea is being rapidly degraded and the Sea has basically lost its function as a fishing ground. Billions of funds have been spent in slowing down, halting and finally reversing the environmental deterioration of the Bohai Sea. Although trace metals are routinely monitored, the data with high temporal resolution for a clear understanding of biogeochemical processes in the ecosystem of the Bohai Sea are insufficient, especially in the western literature. In this review, status of trace metal contamination in the Bohai Sea is assessed based on a comprehensive review of their concentrations recorded in the waters, sediments and organisms over the past decades. Studies show that metal contamination in the Bohai Sea is closely associated with the fast economic growth in the past decades. Concentrations of trace metals are high in coastal areas especially in the estuaries. Alarmingly high metal concentrations are observed in the waters, sediments and organisms from the western Bohai Bay and the northern Liaodong Bay, especially the coasts near Huludao in the northernmost area of the Bohai Sea, which is being polluted by industrial sewage from the surrounding areas. The knowledge of the speciation and fractionation of trace metals and the influence of submarine groundwater discharge on the biogeochemistry of trace metals in the Bohai Sea is far from enough and related work needs to be done urgently to get a better understanding of the influence of trace metals on the ecosystem of the Bohai Sea. A clear understanding of the trace metal pollution status of the Bohai Sea could not be achieved presently for lack of systematic cooperation in different research fields. It is quite necessary to apply the environmental and ecological modeling to the investigation of trace metals in the Bohai Sea and then provide foundations for the protection of the environment and ecosystem of the Bohai Sea.

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Section: The Situation Of the Bohai Baymentioning

confidence: 99%

Pollution status of the Bohai Sea: An overview of the environmental quality assessment related trace metals

Gao

Zhou

Chen

2014

Environment International

329

170

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“…The potential ecological risk index (RI) is the most popular method used in order to evaluate the hazards of trace elements for both human and environmental ecosystems. It indicates the concentration of trace elements that may cause adverse effects in biological toxicology, environmental chemistry and ecology ( Fig.5c; Guo et al, 2010;Jiang et al, 2014).…”

Section: Assessment Of Sediment Contaminationmentioning

confidence: 99%

Geochemical Assessment of Trace Element Pollution in Surface Sediments from the Georges River, Southern Sydney, Australia

Alyazichi

Jones

McLean

et al. 2016

Arch Environ Contam Toxicol

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Measurement of elevated trace elements is an important component of environmental assessment and management of estuarine marine sediments in systems adjacent to concentrated human activity. The present study surveys the estuarine sediments in selected tributary bays, creeks, and the upper segments of the Georges River system, NSW, Australia, which flows into the Tasman Sea through Botany Bay. A total of 146 surface sediment samples were analysed by X-ray fluorescence. Potential pollution of sediments was evaluated using potential load index, modified degree of contamination, and potential ecological risk index. The spatial distribution of trace elements varies between sites. Variable sources of contamination, including runoff from catchment areas, and emissions from watercraft and boatyards are contributing sources. Bay morphologies and their interactions with catchment and tidal flows play significant roles in the distribution of trace elements. The greatest concentration of trace elements occurs around discharge points and in the inner parts of bays that have high percentages of mud particles and organic matter. The lowest contamination by trace elements was found in sandy sediments along the shoreline and edges of the bays. Trace element distributions decline in concentration in residential-free areas and reach background levels in deeper sediment cores. The concentrations of trace elements were controlled by discharge points from the catchment area, marine boat activities, bay morphology, and sediment types (sand, silt, and clay). The highest pollutant concentrations are the result of past legal, but uncontrolled, discharge of waste from manufacturing into Salt Pan Creek. Creek.

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“…Δ C is the content range of the two measurements. Source: author Guo et al (2010), and Zhu et al (2012) terminology used to describe the risk factor based on several relevant studies (Zhang et al 2005;Guo et al 2010;Zhu et al 2012), is shown in Table 4.…”

Section: Potential Ecological Risk Assessmentmentioning

confidence: 99%

The accumulation of heavy metals in agricultural land and the associated potential ecological risks in Shenzhen, China

Song

Liu

et al. 2015

Environ Sci Pollut Res

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Accumulation of heavy metals in agricultural land and their ecological risks are key issues in soil security studies. This study investigated the concentrations of six heavy metals-copper (Cu), zinc (Zn), lead (Pb), nickel (Ni), and chromium (Cr) in Shenzhen's agricultural lands and examined the potential hazards and possible sources of these metals. Eighty-two samples from agricultural topsoil were collected. Potential ecological risk index was used to calculate the potential risk of heavy metals. Principal component analysis (PCA) was applied to explore pollution sources of the metals. Finally, Kriging was used to predict the spatial distribution of the metals' potential ecological risks. The concentrations of the heavy metals were higher than their background values. Most of them presented little potential ecological risk, except for the heavy metal cadmium (Cd). Four districts (Longgang, Longhua, Pingshan, and Dapeng) exhibited some degree of potential risk, which tended to have more industries and road networks. Three major sources of heavy metals included geochemical processes, industrial pollutants, and traffic pollution. The heavy metal Cd was the main contributor to the pollution in agricultural land during the study period. It also poses the potential hazard for the future. High potential risk is closely related to industrial pollution and transportation. Since the 1980s, the sources of heavy metals have evolved from parent rock weathering, erosion, degradation of organics, and mineralization to human disturbances resulting in chemical changes in the soil.

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Pollution and Potential Ecological Risk Evaluation of Heavy Metals in the Sediments around Dongjiang Harbor, Tianjin

Cited by 305 publications

References 6 publications

Pollution status of the Bohai Sea: An overview of the environmental quality assessment related trace metals

Pollution status of the Bohai Sea: An overview of the environmental quality assessment related trace metals

Geochemical Assessment of Trace Element Pollution in Surface Sediments from the Georges River, Southern Sydney, Australia

The accumulation of heavy metals in agricultural land and the associated potential ecological risks in Shenzhen, China

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