Relationships among Heavy Metals and Organic Matter in Sediment Cores from Lake Nanhu, an Urban Lake in Wuhan, China

Yang, Xuefei; Xiong, Benhai; Yang, Ming

doi:10.1080/02705060.2010.9665074

Cited by 47 publications

(17 citation statements)

References 26 publications

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“…Cu typically originates from brake wear. Organic matter in the sediments has a significant effect on the bioaccumulation of metals due to the strong affinity between metals and organic matter 34 . Dissolved and particulate organic matter can act as scavengers for metals, and the scavenged metals may subsequently be incorporated into the bottom sediments 35 .…”

Section: Discussionmentioning

confidence: 99%

Impact of environmental factors on aquatic biodiversity in roadside stormwater ponds

Sun

Sokolova

Brittain

et al. 2019

Sci Rep

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Constructed stormwater ponds mitigate runoff volumes and pollution, and provide other ecosystem services, such as supporting biodiversity, but these services attracted relatively less attention. The impacts of the pollution levels in the water column and sediments, the physical characteristics of ponds, and the presence of amphibians on the macroinvertebrate community composition and biodiversity were explored in twelve stormwater ponds in Norway. Also, the similarities between macroinvertebrate, zooplankton and plant communities were explored. Most of the taxa displayed in the ordination diagram were positively correlated with the pond size and the number of neighbouring ponds, and negatively correlated with the pollution levels in the water column and sediments. However, no statistically significant impacts on the number of taxa and Shannon index were observed. There were low similarities between the macroinvertebrate and zooplankton community compositions as well as between the plant and macroinvertebrate community compositions in the stormwater ponds. We observed a significant positive correlation between the number of plant and of zooplankton taxa, and a weak non-significant positive correlation between the number of plant and of macroinvertebrate taxa. Overall, the explanatory variables had a significant impact on the community composition, but not on the number of taxa nor Shannon index.

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Section: Discussionmentioning

confidence: 99%

Impact of environmental factors on aquatic biodiversity in roadside stormwater ponds

Sun

Sokolova

Brittain

et al. 2019

Sci Rep

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“…Some studies have shown that anthropogenic pollutants, including heavy metals, have a vertical distribution pattern with higher levels in the top versus deeper layers. Skwierawski and Sidoruk (2014) found very high Cr, Zn and Pb concentrations in the uppermost sediment layer (0-10 cm) in the region of Plociduga reservoir (Poland), which received storm water, whereas Yang et al (2010) reported that the greatest concentrations of Cu, Zn, Cd and Pb in an urban lake (China) were found in the surface sediment, with a rapid decrease between 0-and 15-cm layers, and little change in the 15-25-cm layers. The 0-10-cm layer of inshore sediment at Lake Victoria represents approx.…”

Section: Trace Elements In Sedimentmentioning

confidence: 99%

Distribution of arsenic, silver, cadmium, lead and other trace elements in water, sediment and macrophytes in the Kenyan part of Lake Victoria: spatial, temporal and bioindicative aspects

Outa

Kowenje

Plessl

et al. 2019

Environ Sci Pollut Res

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This is the first detailed report on the distribution of Ni, As, Sr and Ag in water, sediments and macrophytes from Lake Victoria, complemented with recent data on the heavy metals Cr, Cu, Zn, Cd and Pb. The study was conducted over an 11-month period at five sites in the Kenyan part of Lake Victoria: four sites in the Winam Gulf influenced by various anthropogenic pressures including a site near Kisumu City, and one in the main lake, perceived to have lesser direct anthropogenic influence. Compared with the main lake site, the water in Winam Gulf had significantly higher values for electrical conductivity and concentrations of dissolved components: organic carbon and bound nitrogen, as well as major and most trace elements. This contamination is also evident in surface sediments, which contained significantly higher levels of Cr, Zn, As, Ag, Cd and Pb compared with the main lake site. The mean levels of Cr, Cu, Zn, Ag and Pb exceeded probable effect levels at least at one of the gulf sites. The sediments at the Kisumu City site were classified as severely polluted with Cu (up to 259 mg/kg dw) and Pb (up to 1188 mg/kg dw). The sediment cores showed significantly higher levels of Cu, Zn, Ag, Cd and Pb in the surface (0-3 cm) versus subsurface (22-25 cm) layer at the Kisumu City site, indicating increasing pollution by these elements within the last 15 years. This is also the first report on trace elements in the emergent water plant Vossia cuspidata and submerged plant Ceratophyllum demersum from this lake. Even though the accumulation of most elements is comparable between C. demersum (whole plant) and V. cuspidata roots, the latter shows a better bioindicative potential. Contamination of the gulf with Ni, Cu, Zn, Ag, Cd and Pb is well mirrored in V. cuspidata roots. V. cuspidata strongly restricts the acropetal transport of trace elements, and hence using the shoots as fodder does not pose a risk to livestock.

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“…Wuhan is the largest metropolis in central China, with fast economic growth, high population density, abundant water resources, strong industrial foundation, and highly developed transportation network. Although several studies about trace metals in soil in this city have been done, most of them were restricted to small specific areas (Qu et al 2013;Yang et al 2011) or water bodies (Jiang et al 2014;Liu et al 2008;Yang et al 2009Yang et al , 2010. For example, Qu et al (2014) recently studied the trace metal contamination status in the Wuhan Donghu High-tech Development Park and assessed the potential ecological risk of trace metals in soil to human health.…”

Section: Introductionmentioning

confidence: 97%

Spatial distribution and ecological risk assessment of trace metals in urban soils in Wuhan, central China

Zhang

Yang

et al. 2015

Environ Monit Assess

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Surface soil samples from 467 sample sites were collected in urban area of Wuhan City in 2013, and total concentrations of five trace metals (Pb, Zn, Cu, Cr, and Cd) were measured. Multivariate and geostatistical analyses showed that concentrations of Pb, Zn, and Cu are higher along Yangtze River in the northern area of Wuhan, gradually decrease from city center to suburbs, and are mainly controlled by anthropogenic activities, while those of Cr and Cd are relatively spatially homogenous and mainly controlled by soil parent materials. Pb, Zn, Cu, and Cd have generally higher concentrations in roadsides, industrial areas, and residential areas than in school areas, greenbelts, and agricultural areas. Areas with higher road and population densities and longer urban construction history usually have higher trace metal concentrations. According to estimated results of the potential ecological risk index and Nemero synthesis pollution index, almost the whole urban area of Wuhan is facing considerable potential ecological risk caused by soil trace metals. These results reveal obvious trends of trace metal pollution, and an important impact of anthropogenic activities on the accumulation of trace metals in soil in Wuhan. Vehicular emission, industrial activities, and household wastes may be the three main sources for trace metal accumulation. Increasing vegetation cover may reduce this threat. It should be pointed out that Cd, which is strongly accumulated in soil, could be the largest soil pollution factor in Wuhan. Effective measures should be taken as soon as possible to deal with Cd enrichment, and other trace metals in soil should also be reduced, so as to protect human health in this important large city.

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Relationships among Heavy Metals and Organic Matter in Sediment Cores from Lake Nanhu, an Urban Lake in Wuhan, China

Cited by 47 publications

References 26 publications

Impact of environmental factors on aquatic biodiversity in roadside stormwater ponds

Impact of environmental factors on aquatic biodiversity in roadside stormwater ponds

Distribution of arsenic, silver, cadmium, lead and other trace elements in water, sediment and macrophytes in the Kenyan part of Lake Victoria: spatial, temporal and bioindicative aspects

Spatial distribution and ecological risk assessment of trace metals in urban soils in Wuhan, central China

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