Assessment of environmental stress by the micronucleus and comet assays on Limnoperna fortunei exposed to Guaíba hydrographic region samples (Brazil) under laboratory conditions

Villela, Izabel Vianna; Oliveira, Iuri Marques de; Silveira, Juliano Coelho da; Dias, Johnny Ferraz; Henriques, João Antônio Pêgas; Silva, Juliana da

doi:10.1016/j.mrgentox.2006.12.001

Cited by 66 publications

(40 citation statements)

References 29 publications

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“…DNA damage observed in the zebrafish exposed to the estuarine waters of the Macaé River, which was 5.1 fold higher than the control after 48 h of exposure (comet assay), suggests the presence of genotoxic substances. The number of micronuclei found in this study (> 10 MN/thousand) is higher than the values observed for clams at the Guaíba hydrographic basin, which showed values between 4.5 to 6.9 MN/thousand at sites contaminated by urban effluents, metals and agriculture activities (Villela et al, 2007) and similar to values found in fish species (9.0 to 11 MN/thousand) located close to sources of contamination by industrial and urban discharges at Paranaguá estuary (Paraná state) (Domingos et al, 2009).…”

Section: Discussioncontrasting

confidence: 90%

First Evaluation of Genotoxicity of Macaé (Rj) Estuarine Waters

Conceição¹,

Costa

Molisani³

et al. 2018

ACMAR

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Section: Discussioncontrasting

confidence: 90%

First Evaluation of Genotoxicity of Macaé (Rj) Estuarine Waters

Conceição¹,

Costa

Molisani³

et al. 2018

ACMAR

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“…Beyond pollution of water bodies, these factors can cause damage to biota and humans (Margalef, 1991;Villela et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Influence of urban area on the water quality of the Campo River basin, Paraná State, Brazil

et al. 2015

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The Campo River basin is located on the third plateau of the Paraná State or trap plateau of Paraná, at the middle portion between the rivers Ivaí and Piquiri, southern Brazil, between the coordinates 23° 53 and 24° 10' South Latitude and 52° 15' and 52° 31' West Longitude. The basin has 384 Km² area, being 247 km 2 in the municipality of Campo Mourão and 137 km 2 in the municipality of Peabiru, in Paraná State. The Campo River is a left bank tributary of the Mourão River, which flows into the Ivaí River. The objective of this study was to monitor water quality in the Km 119 River and the Campo River, tributaries of the Mourão River, with monthly collection of water samples to determine pH, temperature, turbidity, biochemical oxygen demand, dissolved oxygen, fecal coliforms, total solids, total nitrogen, ammoniacal nitrogen, nitrite, nitrate and total phosphorus. The results obtained were compared with the indices established by the environmental legislation and applied in the determination of the Water Quality Index (WQI) used by the Water Institute of Paraná State, regulating environmental agency. Poor water quality in these rivers presents a worrying scenario for the region, since this river is the main source of water supply for the public system. Results of organic matter, fecal coliforms and total phosphorus were higher than the limits established by Resolution CONAMA 357/2005 to river class 2, specially at downstream of the Km 119 River and the Campo River, due to the significant influence of the urban anthropic activity by the lack of tertiary treatment and also rural by the lack of basic sanitation in this area. Results of WQI of Km 119 River and do Campo River indicated that water quality can be classified as average in 71% and good in 29% of the sites evaluated.Keywords: water quality, water resources, Anova, Tukey. Influência da área urbana na qualidade das águas na Bacia do Rio do Campo River, estado do Paraná, Brasil ResumoA Bacia Hidrográfica Rio do Campo está situada no terceiro planalto paranaense, na porção média entre os rios Ivaí e Piquiri, Sul do Brasil, entre as coordenadas 23° 53' e 24°10' de Latitude Sul e 52°15' e 52°31' de Longitude Oeste. A bacia ocupa área de 384 Km 2 , sendo 247 km 2 no município de Campo Mourão e 137 km 2 no município de Peabiru, no estado do Paraná. O Rio do Campo é um afluente da margem esquerda do Rio Mourão, que deságua no Rio Ivaí. O objetivo deste trabalho foi monitorar a qualidade da água do rio Km 119 e rio do Campo, afluentes do Rio Mourão, com coletas mensais de amostras de água para determinação do pH, temperatura, turbidez, demanda bioquímica de oxigênio, oxigênio dissolvido, coliformes fecais, sólidos totais, nitrogênio total, nitrogênio amoniacal, nitrito, nitrato e fósforo total. Os resultados obtidos foram comparados aos limites estabelecidos na legislação ambiental vigente para poluentes na água e aplicados na determinação do Índice de Qualidade das Águas (IQA) usado pelo Instituto das Águas do Paraná, órgão ambiental fiscalizador. A má qual...

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“…Other human activities, such as forest cutting and burning and the use of inappropriate management techniques and procedures, have led to soil erosion, and the uncontrolled expansion of cities and highway construction have also contributed to an increase in residue levels in rivers (Margalef, 1991). These residues may bring about changes in the composition of water, which could produce harmful effects on the organisms inhabiting these areas and also on the human body (Villela et al, 2007;Lemos, 2009). The disordered occupation of the Sinos River basin, with the use of aggressive technologies in the water and soil, has led to the increasing contamination of water resources and degradation of its unique flora and fauna (COMITESINOS, 2010).…”

Section: Introductionmentioning

confidence: 99%

Water quality assessment of the Sinos River, Southern Brazil

Blume

Macedo²,

Meneguzzi

et al. 2010

Braz. J. Biol.

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The Sinos River basin is located Northeast of the state of Rio Grande do Sul (29° 20' to 30° 10' S and 50° 15' to 51° 20' W), Southern Brazil, covering two geomorphologic provinces: the Southern plateau and central depression. It is part of the Guaíba basin and has an area of approximately 800 km 2 , encompassing 32 municipalities. The objective of this study was to monitor water quality in the Sinos River, the largest river in this basin. Water samples were collected at four selected sites in the Sinos River, and the following parameters were analysed: pH, dissolved oxygen, biochemical oxygen demand (BOD 5 ), turbidity, fecal coliforms, total dissolved solids, temperature, nitrate, nitrite, phosphorous, chromium, lead, aluminum, zinc, iron, and copper. The results were analysed based on Resolution No. 357/2005 of the Brazilian National Environmental Council (CONAMA) regarding regulatory limits for residues in water. A second analysis was performed based on a water quality index (WQI) used by the Sinos River Basin Management Committee (COMITESINOS). Poor water quality in the Sinos River presents a worrying scenario for the region, since this river is the main source of water supply for the urban core. Health conditions found in the Sinos River, mainly in its lower reaches, are worrying and a strong indicator of human activities on the basin.Keywords: Sinos River, water resources, water quality. Avaliação da qualidade da água do Rio dos Sinos ResumoA Bacia Hidrográfica do Rio dos Sinos localizada a nordeste do Estado do Rio Grande do Sul, entre as coordenadas geográficas de 29° 20' a 30°10' de latitude Sul e de 50° 15' a 51° 20' de longitude Oeste. As províncias geomorfológicas abrangidas são o planalto meridional e a depressão. Compondo a Região Hidrográfica do Guaíba, ocupa, aproximadamente, uma área de 800 km 2 , abrangendo 32 municípios. O objetivo deste trabalho foi monitorar a qualidade da água do rio dos Sinos, principal rio da bacia hidrográfica do rio dos Sinos. Foram realizadas coletas em quatro pontos selecionados do rio, sendo realizadas análises de pH, oxigênio dissolvido, demanda bioquímica de oxigênio (DBO 5 ), turbidez, coliformes fecais, sólidos dissolvidos totais, temperatura, nitrato, nitrito, fosfato, cromo, chumbo, alumínio, zinco, ferro e cobre. Os resultados do trabalho foram analisados com base na resolução CONAMA nº 357 de 2005 em relação a suas restrições de uso. Outra análise foi feita empregando o Índice de Qualidade das Águas (IQA), índice usado pelo comitê de gerenciamento desta bacia (COMITESINOS). A baixa qualidade da água do rio dos Sinos observada deslumbra um cenário preocupante para a região que usa este rio como a principal fonte de abastecimento público. As condições sanitárias encontradas no rio dos Sinos, principalmente no trecho inferior, são preocupantes sendo forte indicativo das atividades antrópicas na bacia.Palavras-chave: Rio dos Sinos, recursos hídricos, qualidade da água.

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Assessment of environmental stress by the micronucleus and comet assays on Limnoperna fortunei exposed to Guaíba hydrographic region samples (Brazil) under laboratory conditions

Cited by 66 publications

References 29 publications

First Evaluation of Genotoxicity of Macaé (Rj) Estuarine Waters

First Evaluation of Genotoxicity of Macaé (Rj) Estuarine Waters

Influence of urban area on the water quality of the Campo River basin, Paraná State, Brazil

Water quality assessment of the Sinos River, Southern Brazil

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