Ecological risk index for aquatic pollution control: a case study of coastal water bodies from the Rio de Janeiro State, southeastern Brazi

Pompêo, Marcelo Luiz Martins; Padial, Paula Regina; Mariani, Carolina Fiorillo; Cardoso-Silva, Sheila; Moschini‐Carlos, Viviane; Silva, Daniel Clemente Vieira Rêgo da; Paiva, Teresa Cristina Brazil de; Brandimarte, Ana Lúcia

doi:10.5327/z0102-9800201300020003

Cited by 21 publications

(12 citation statements)

References 13 publications

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“…For metals, the highest concentrations found in surface water in the dam area could be explained by the tendency of this material to accumulate here due to the longer residence time. This finding was in agreement with Pompêo et al (2013), who reported high levels of Cr, Ni, Cu, and Cd in superficial sediments from the Guarapiranga dam area.…”

Section: Compartments V and Visupporting

confidence: 93%

“…The water of this reservoir has, since the 1960s, shown a historic loss of chemical and biological quality, due to increased loads of organic material and nutrients (ANA 2005;CETESB 2014). The presence in sediment of metals (such as cadmium and copper) at concentrations above background has been confirmed in various reports and studies (CETESB 2014;Pompêo et al 2013).…”

Section: Introductionmentioning

confidence: 58%

“…The use of copper sulfate as an algicide is a controversial palliative practice. This practice has resulted in concentrations of copper in sediments up to 46-fold (Pompêo et al 2013) background, and up more than tenfold the PEL (probable effect level-137 mg kg −1 ) value for copper, which suggest toxicity is likely to occur in sediments (Leal et al 2017). Leal et al (2017) evaluated copper concentrations along Guarapiranga sediments and through a geostatistical approach estimated the sediment copper stock in the reservoir.…”

Section: Compartments V and Vimentioning

confidence: 99%

“…In fact, in the present work, the elements Cd and Zn showed the highest TU values. The presence of cadmium in the reservoir could be attributed to the existence of industrial activities in the northern and northwest reservoir regions, with possible sources of contamination including pigments and plastics manufacturing facilities (Pompêo et al 2013).…”

Section: Compartments V and Vimentioning

confidence: 99%

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Metals and limnological variables in an urban reservoir: compartmentalization and identification of potential impacted areas

Cardoso-Silva

López-Doval

Moschini‐Carlos

et al. 2017

Environ Monit Assess

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Reservoirs in urban areas are used for different purposes and are liable to different types of pressures that can cause the loss of chemical and biological quality, hence diminishing their ecological, economic, and cultural benefits. Here, a study of surface water heterogeneity was undertaken at the Guarapiranga urban reservoir (São Paulo, Brazil) in order to improve understanding of the structure and functioning of these ecosystems. Sampling was performed during the dry and rainy seasons at 33 sites. Limnological variables and total contents of the metals cadmium, nickel, lead, and zinc were analyzed. The risks associated with the metals were evaluated based on the toxicity unit approach. A principal component analysis enabled differentiation of the reservoir into six different areas. Some of the most powerful discriminatory variables (nutrients and metals) showed the existence of anthropogenic impacts on the system. The most strongly affected compartments were located in the following: (1) upstream area, under the influence of the Parelheiros stream, with the highest total phosphorus levels (318 mg L) and (2) dam area, with high values for total nitrogen, suspended organic matter, total solids, and pH. The results for the dam compartment were a consequence of substantial urbanization and a longer residence time. Despite high levels of cadmium during the rainy season, no significant potential risk for zooplankton was observed. The data indicated the need to control unauthorized land occupation and to implement adequate sanitation in the Guarapiranga watershed. This research provides information that should assist water resource agencies in the sustainable management of urban reservoirs.

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Section: Compartments V and Visupporting

confidence: 93%

Section: Introductionmentioning

confidence: 58%

Section: Compartments V and Vimentioning

confidence: 99%

Section: Compartments V and Vimentioning

confidence: 99%

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Metals and limnological variables in an urban reservoir: compartmentalization and identification of potential impacted areas

Cardoso-Silva

López-Doval

Moschini‐Carlos

et al. 2017

Environ Monit Assess

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“…Mineral exploitation, in the State of Amapá, has impacted the soil and water of this region with high levels of heavy metals, among Cu and Zn [6]. Pompêo et al, [7] reported high concentrations of Cu (1157 mg kg -1 ) and Zn (223 mg kg -1 ) in sediments of the Guarapiranga reservoir on the city of São Paulo. Also found high levels of heavy metals in the river Tietê, in São Paulo, mainly Zn [8].…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Cu (II) and Zn (II) from Water by Jatropha curcas L. as Biosorbent

et al. 2016

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Abstract:The objective of this work was to evaluate the removal of Cu 2+ and Zn 2+ in water by means of the adsorption process using three biosorbents derived from jatropha biomass (bark, endosperm and endosperm + seed coat). The experiments were performed in batch and evaluated the effect of solution pH, adsorbent mass, contact time, different initial concentrations of the metals Cu 2+ and Zn 2+, and the temperature of the solution during the adsorptive process. By kinetics, the adsorption isotherms and thermodynamics the mechanisms that control the adsorptive process were evaluated. The optimal conditions for the realization of the adsorptive process for both metals were: solution pH of 5.0 and 8 g L -1 of adsorbent mass per volume of solution, with a contact time between adsorbent and adsorbate of 60 min. According to the Langmuir model, the maximum adsorption capacities for the bark, endosperm and endosperm + seed coat of Jatropha were, respectively, for Cu 2+ 11.541, 20.475 and 22.910

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Ecotoxicology and geostatistical techniques employed in subtropical reservoirs sediments after decades of copper sulfate application

Biamont-Rojas

Cardoso-Silva

Bitencourt

et al. 2022

Environ Geochem Health

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Ecological risk index for aquatic pollution control: a case study of coastal water bodies from the Rio de Janeiro State, southeastern Brazi

Cited by 21 publications

References 13 publications

Metals and limnological variables in an urban reservoir: compartmentalization and identification of potential impacted areas

Metals and limnological variables in an urban reservoir: compartmentalization and identification of potential impacted areas

Adsorption of Cu (II) and Zn (II) from Water by Jatropha curcas L. as Biosorbent

Ecotoxicology and geostatistical techniques employed in subtropical reservoirs sediments after decades of copper sulfate application

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