Geochronology of anthropogenic pollutants in riparian wetland sediments of the Lippe River (Germany)

Heim, Sabine; Schwarzbauer, Jan; Kronimus, Alexander; Littke, R.; Woda, Clemens; MANGINI, A

doi:10.1016/s0146-6380(04)00121-4

Cited by 68 publications

(20 citation statements)

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“…Hence, the history of pollution by these metals has frequently been recorded in sediment cores from closed aquatic regions such as bays and lakes. In developed countries, a downward historical trend of their pollution has been generally observed in the cores owing to pollution control in industries and utilities (e.g., Hirao et al, 1986;Pearson et al, 1997;Fox et al, 1999;Hornberger et al, 1999;Yasuhara & Yamazaki, 2005;Heim et al, 2004;Mahler et al, 2006;Sakata et al, 2008;Hosono et al, 2010). Among heavy metals, however, zinc (Zn) concentration in sediments in recent years is significantly higher than the background concentration (Mahler et al, 2006;Sakata et al, 2008;Thapalia et al, 2010Thapalia et al, , 2015.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Pollution Sources of Zinc in Tokyo Bay Based on Zinc Isotope Ratio in Sediment Core

Sakata¹,

Okuizumi²,

Mashio³

et al. 2019

GEP

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This study evaluated the sources of Zn pollution in Tokyo Bay, Japan, on the basis of δ 66 Zn in a sediment core. The Zn concentration in sediments in the 1980s-2000s was considerably higher than the background concentration, suggesting that there remain important sources of Zn in the bay. The δ 66 Zn (+0.51‰) of anthropogenic Zn estimated in the core was significantly higher than those (approximately-0.1‰-+0.2‰) of treated water from sewage treatment plants and vehicle-related sources. A large number of electroplating plants are located in Tokyo areas. It is assumed that Zn in effluents from electroplating operations is isotopically heavier owing to a negative isotopic effect on Zn electroplating. This tends to support the hypothesis that river bottom sediments, which were contaminated with Zn in the untreated effluents from electroplating plants in the past, are the principal sources of anthropogenic Zn in Tokyo Bay in the 1980s-2000s.

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Section: Introductionmentioning

confidence: 99%

Evaluation of Pollution Sources of Zinc in Tokyo Bay Based on Zinc Isotope Ratio in Sediment Core

Sakata¹,

Okuizumi²,

Mashio³

et al. 2019

GEP

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“…Despite the great ecological service functions, river floodplains in most industrialized countries have been polluted by heavy metals and become potential pollution sources as particulate anthropogenic pollutants (e.g., fly ash and dust) are transported and disseminated more efficiently by rivers than by the atmosphere (Grygar et al , 2013). The agricultural input to these wetlands by surface runoff has also been identified to be an important source (Heim et al, 2004). Zhang et al (2011) found that the tidal channels received wastewater discharged from industrial, agricultural and domestic activities, which contributed to heavy metal accumulation in reclaimed tidal riparian wetlands.…”

Section: Introductionmentioning

confidence: 99%

“…Walling et al (2003) also pointed out that about 90% of the heavy metals in the aquatic environment was connected with the suspension and fluvial sediments. Most researchers have focused on historical trend in heavy metals in wetland sediments as affected by intense anthropogenic activities using 14 C or 137 Cs/ 210 Pb dating techniques (Grygar et al, 2013;Lokas et al;Heim et al, 2004), as the floodplain sediment contains quite a lot information on regional environmental changes (de Moor et al, 2008;Grygar et al, 2010). However, few studies have been carried out on spatial and seasonal distributions of heavy metals in riparian wetlands along a distance gradient to the river bank in the coastal region.…”

Section: Introductionmentioning

confidence: 99%

Spatial and temporal dynamics of heavy metal pollution and source identification in sediment cores from the short-term flooding riparian wetlands in a Chinese delta

Bai

Jia

Zhao

et al. 2016

Environmental Pollution

104

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Sediment samples were collected to a depth of 60 cm along a 350-m sampling belt in a short-term-flooding riparian wetland in the Yellow River Delta of China in three sampling seasons. Contents of heavy metals were determined to investigate their spatial and temporal distributions, sources and ecotoxities. Our results showed that As contents in the top 20 cm sediments increased before decreasing along the sampling belt in summer, whereas they kept stable before increasing in fall and spring. Cd contents increased along the sampling belt in three sampling seasons, whereas Ni and Cr generally exhibited a decreasing tendency. Comparatively, Cu, Pb and Zn consistently increased at the first 50 m distance and then decreased before increasing from the distance of 150 m in summer and fall and increased to the maximum at the distance of 250 m and then showed a decrease in spring. Two "hotspots" of heavy metal accumulation in sediment cores along the belt were observed at the distance from 50 to 100 m in summer and at the distance from 200 to 300 m in spring. Most of sediment samples contained higher heavy metals in excess of threshold effect levels except for Zn and Pb in three sampling seasons and the values of toxic units in more than 30% of sediment samples exceeded 4 in summer. As, Ni and Cr had relatively higher contribution to the values of toxic units compared with other heavy metals in three sampling seasons. Multivariance analysis showed that As and Cd might originate from the same source and Cu, Zn, Cr, Pb and Ni might derive from another similar source. Cd was significantly correlated with salinity (p < 0.01) and pH (p < 0.05). Meanwhile, these heavy metals were also significantly correlated with other properties such as S, Al, TP, SOM and Silt + Clay.

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“…The identity and number of distinct denitrifier genotypes (indicated by T‐RFLP analysis of nosZ genes) differed between systems. DER supported a greater number of system‐specific denitrifier genotypes than RP, as might be expected, given that effluent from WWTP contains a high diversity of dissolved organic compounds, many of which are generally not common in systems under natural controls (Heim et al , 2003; Sirivedhin & Gray, 2005; Parnaudeau & Dignac, 2007). Similar to the patterns noted in algal assemblages, however, the number of denitrifier genotypes associated with biofilm samples appeared to stabilize in older DER biofilms, while distinct denitrifier genotypes detected in RP samples increased in number throughout the 28 days of biofilm development.…”

Section: Discussionmentioning

confidence: 59%

Development of associations between microalgae and denitrifying bacteria in streams of contrasting anthropogenic influence

Peterson

Daley

Pechauer

et al. 2011

FEMS Microbiology Ecology

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We compared the development of microalgal and bacterial-denitrifier communities within biofilms over 28 days in a restored-prairie stream (RP) and a stream receiving treated wastewater effluent (DER). Inorganic nutrient concentrations were an order of magnitude greater in DER, and stream waters differed in the quality of dissolved organics (characterized via pyrolysis-GC/MS). Biofilm biomass and the densities of algae and bacteria increased over time in both systems; however, algal and denitrifier community composition and the patterns of development differed between systems. Specifically, algal and denitrifier taxonomic composition stabilized more quickly in DER than RP, whereas the rates of algal and denitrifier succession were more closely coupled in RP than DER. We hypothesize that, under unenriched conditions, successional changes in algal assemblages influence bacterial denitrifiers due to their dependence on algal exudates, while under enriched conditions, this relationship is decoupled. Between-system differences in organic signatures supported this, as RP biofilms contained more labile, aliphatic compounds than DER. In addition, potential denitrification rates (DNP) were negatively correlated with the percentage of aromatic compounds within the biofilm organic signatures, suggesting a significant relationship between algal exudate composition and denitrification. These results are significant because anthropogenic factors that affect biofilm community composition may alter their capacity to perform critical ecosystem services.

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Geochronology of anthropogenic pollutants in riparian wetland sediments of the Lippe River (Germany)

Cited by 68 publications

References 0 publications

Evaluation of Pollution Sources of Zinc in Tokyo Bay Based on Zinc Isotope Ratio in Sediment Core

Evaluation of Pollution Sources of Zinc in Tokyo Bay Based on Zinc Isotope Ratio in Sediment Core

Spatial and temporal dynamics of heavy metal pollution and source identification in sediment cores from the short-term flooding riparian wetlands in a Chinese delta

Development of associations between microalgae and denitrifying bacteria in streams of contrasting anthropogenic influence

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