Sediment pollution in margins of the Lake Guaíba, Southern Brazil

Andrade, Leonardo Capeleto de; Tiecher, Tales; Oliveira, Jessica Souza de; Andreazza, Robson; Inda, Alberto Vasconcellos; Camargo, Flávio Anastácio de Oliveira

doi:10.1007/s10661-017-6365-9

Cited by 21 publications

(12 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, the comparison of metal concentrations between the evaluated section of the Dilúvio Stream (AD) and two "before" (Ga) and two "after" (Gd) sites closest to the outflow (De Andrade et al, 2018) was performed by comparing the data with box-plot and submitting to statistical analysis of Kruskal-Wallis at 5% significance in completely randomized analyses with different numbers of repetitions.…”

Section: Discussionmentioning

confidence: 99%

“…These issues increase the deposition and contamination rates of road dust that flow to surface water bodies by runoff carrying metals such as Zn, Pb, Cu, Cr, and Ni (Sharley et al, 2016;Zhang et al, 2016). Nevertheless, Cr is also associated with atmospheric deposition near industrial areas (Sharley et al, 2016), with an historical use in leather and footwear industries in the Lake Guaíba drainage basin (De Andrade et al, 2018).…”

Section: Influence Of the Channeled Section Of Dilúvio Stream On Sedimentioning

confidence: 99%

“…Channelization results in gradual degradation impacting the biotic and abiotic components of the system, which may lead to a high and fluctuating concentration of contaminants and nutrients (Pandey et al, 2018). A previous study in Lake Guaíba (De Andrade et al, 2018) shows that the main source of punctual sediment pollution in the margins of the Lake Guaíba comes from urban streams, such as Dilúvio. Therefore, in the channeled area there is possibly an important input of pollution from anthropogenic sources in the surroundings.…”

Section: Influence Of the Channeled Section Of Dilúvio Stream On Sedimentioning

confidence: 99%

See 2 more Smart Citations

Physico-chemical variability and heavy metal pollution of surface sediment in a non-channeled section of Dilúvio Stream (Southern Brazil) and the influence of channeled section in sediment pollution

et al. 2019

Self Cite

View full text Add to dashboard Cite

Dilúvio Stream flows through an area with a great population density in Porto Alegre, Southern Brazil. The anthropogenic influence in the surroundings impacted negatively the quality of the sediments of Dilúvio Stream and Lake Guaíba. This study evaluated the physico-chemical variability of surface sediments in a non-channeled section of Dilúvio Stream. Additionally, we compared the concentration of several heavy metals in this section with data from previous studies in the margins of Lake Guaíba near the outflow of Dilúvio Stream in order to evaluate the impact of urbanization on sediment pollution. The pH, bulk density, particle-size distribution, electrical conductivity, organic carbon, assimilable phosphorus, total nitrogen, mineralogical composition (X-ray diffractogram) and pseudo total concentration of several metals (Fe, Al, Ca, Mg, Na, K, Mn, Ba, Zn, V, As, Pb, Cu, Cr, Co, Ni, Cd, Mo, and Se) were evaluated. The results showed that the sediments in the non-channeled section of Dilúvio Stream are predominantly sandy, with heavy metal contents below the quality reference values. Quartz and feldspar predominated in all sites. The concentration of Zn, Pb, Cu, Cr, and Ni were lower than that observed in the margins of Lake Guaíba near the outflow of Dilúvio Stream, possibly due to pollution input throughout the channeled section. The Dilúvio Stream shows indications of an anthropogenic influence in the heavy metals concentration through the channeled area.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Influence Of the Channeled Section Of Dilúvio Stream On Sedimentioning

confidence: 99%

Section: Influence Of the Channeled Section Of Dilúvio Stream On Sedimentioning

confidence: 99%

See 1 more Smart Citation

Physico-chemical variability and heavy metal pollution of surface sediment in a non-channeled section of Dilúvio Stream (Southern Brazil) and the influence of channeled section in sediment pollution

et al. 2019

Self Cite

View full text Add to dashboard Cite

show abstract

“…Water pollution in Lake Guaíba's watershed has been noted since the end of 1950 (Freitas, 1962;Roessler, 2005), persisting for decades as a public perception. Nowadays, the waters have multiples uses: as water supply, sewage dilution, navigation, as well as fishing (Andrade et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

The historical influence of tributaries on the water and sediment of Jacuí’s Delta, Southern Brazil

Andrade¹,

Andrade²,

Camargo³

2018

Rev. ambiente água

View full text Add to dashboard Cite

The high population density in a metropolis leads to socio-environmental impacts that directly affect local water resources. This work evaluated the historical data (between 2000 and 2014) of water and sediment monitoring in the Jacuí’s Delta region and analyzed the relationship between these sites. Seven monitoring sites around the Jacuí's Delta were evaluated: the outflow of the rivers Jacuí, Caí, Sinos, and Gravataí; the channels Ilha da Pintada and Navegantes; and Lake Guaíba. Water data were evaluated for: air and water temperature; depth; pH; electrical conductivity; transparency; turbidity; dissolved oxygen; biochemical oxygen demand; phosphorus; nitrogen; total residues; and escherichia coli. Sediment were evaluated for pseudo-total concentrations of metals (Al, Fe, Ca, Mn, Ba, V, Zn, Cu, Pb, Cr, Ni, Co, Li, Be, Cd, Hg, As, and Ag). The quality of water and sediment in the Jacuí's Delta are linked with the tributaries and priority flows of the channels. The historical data of water and sediment around the Jacuí's Delta shows the influence of the tributaries with low quality in the downstream points. The pollution of the rivers Caí, Sinos, and Gravataí negatively affects the environmental quality of the channel Navegantes and Lake Guaíba (catchment points to water supply). The water in those sites presents reductions in dissolved oxygen and high values of coliforms, and the sediment shows high concentrations of metal Zn, Pb, Cr, and Hg. Despite the reduction in Pb and Hg values in the sediment over the past years, pollution from the tributary rivers still persists.

show abstract

“…The main activities affecting this region consists of disorderly housing occupation of the areas along the Santa Bárbara stream, release of untreated domestic and industrial sewage and disposal of urban solid waste. Andrade et al (2018) evaluating sediment pollution in the margins of the Lake Guaíba (RS), also in Southern Brazil, detected that the water pollution by heavy metals and nutrients were derived from urban streams that flows into the lake. The authors also used a multivariate analysis to support their results and thus help to identify pollutants sources and recommended that public actions should focus in the streams that flow into the Lake Guaíba, in order to solve this environmental issue.…”

mentioning

confidence: 99%

Environmental and multivariate analysis of Santa Bárbara stream, Brazil, contaminated with heavy metals and nutrients

2019

Aust. J. Basic & Appl. Sci.

View full text Add to dashboard Cite

The urbanization has been related with the pollution of water bodies due to different activities performed in cities and its several impacts, as waste production, untreated sewage release and change in land use and occupation. The pollutants source are different, i.e.: urban solid waste, organic waste from animals, particles coming from wear of tires, brake linings and asphalt, fuel and oil from vehicles, drainage connections issues or pollution in atmosphere. These pollutants can cause changes in processes and properties of environments, especially aquatic ecosystems (Nascimento et al. 2015). The sources of potentially toxic metals and nutrients in aquatic environment are classified as diffuse or punctual pollution sources, among which stand out: urban and industrial waste, atmospheric deposition, urban surface runoff and agricultural runoff (Poleto and Martinez 2011). Heavy metals are released by these anthropogenic sources, cause serious danger to population health and environment and become a widespread concern due to their toxicity, persistence and bioaccumulation ability (BonannoandGiudice2010). Heavy metals can exist into surface waters in colloidal and particulate phases (found in hydroxides, oxides, silicates, or sulphides or adsorbed by clay, silica, or organic matter) and dissolved phases (concentrations are generally low) (Kennish 1992). The solubility of trace metals in surface waters is predominantly controlled by the water pH, the type and concentration of binders, which the metal could adsorb, and the heavy metal oxidation state (Pintilie et al. 2007). Under certain conditions, heavy metals accumulate toxic levels in aquatic flora and fauna, leading to ecological damage and endangering human health through the food

show abstract

Sediment pollution in margins of the Lake Guaíba, Southern Brazil

Cited by 21 publications

References 19 publications

Physico-chemical variability and heavy metal pollution of surface sediment in a non-channeled section of Dilúvio Stream (Southern Brazil) and the influence of channeled section in sediment pollution

Physico-chemical variability and heavy metal pollution of surface sediment in a non-channeled section of Dilúvio Stream (Southern Brazil) and the influence of channeled section in sediment pollution

The historical influence of tributaries on the water and sediment of Jacuí’s Delta, Southern Brazil

Environmental and multivariate analysis of Santa Bárbara stream, Brazil, contaminated with heavy metals and nutrients

Contact Info

Product

Resources

About