Mutagenic and ecotoxicological assessment of urban surface runoff flowing to the beaches of Guarujá, State of São Paulo, Brazil
| Autor: | Alberto Teodorico Correia, Luciana Lopes Guimarães, Vinicius Roveri |
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| Rok vydání: | 2021 |
| Předmět: |
Wet season
Environmental Engineering Rain 0208 environmental biotechnology Fishing 02 engineering and technology subtropical zone 010501 environmental sciences Ecotoxicology Environmental technology. Sanitary engineering 01 natural sciences Daphnia Dry season Animals TD1-1066 Environmental quality 0105 earth and related environmental sciences Water Science and Technology Pollutant non-point source pollution biology fungi Ceriodaphnia dubia biology.organism_classification 020801 environmental engineering Fishery urban drainage channel bioassay domestic sewage Environmental science Surface runoff Brazil Water Pollutants Chemical pollution effect Environmental Monitoring Mutagens |
| Zdroj: | Water Science and Technology, Vol 83, Iss 12, Pp 3054-3062 (2021) |
| ISSN: | 1996-9732 0273-1223 |
| DOI: | 10.2166/wst.2021.175 |
| Popis: | Along the coast of the State of São Paulo, Brazil, urban drainage channels introduce a complex mixture of pollutants into the South Atlantic Ocean, that may cause deleterious effects to the aquatic biota. The objective of this study was to analyse, for the first time, the mutagenicity (Ames Salmonella/microsome test) and ecotoxicity (acute and chronic tests, with Daphnia simillis and Ceriodaphnia dubia, respectively) exerted by the diffuse loads discharged in Guarujá, São Paulo coast, Brazil. Water sampling occurred bimonthly between January and July 2018 (rainy season: January through March; dry season: May through July) at four beaches with different profiles of use and land occupation: Tombo (Blue Flag certification), Enseada (high use by tourists), Perequê (fishing community) and Iporanga (conservation unit). No mutagenic potential was detected in the complex mixtures flowing to the study beaches. However, 30 and 80% of the analyses showed acute and chronic toxicities, respectively, mainly in the Enseada and Perequê channels during the rainy season. To improve the environmental quality of these coastal waters and to reduce the ecological risks posed to the aquatic organisms and public health, several actions are imperative, such as the amelioration of the basic sanitation facilities and land regularisation actions. HIGHLIGHTS Evaluation of the genotoxicity and ecotoxicity of urban surface runoff of Guarujá (State of São Paulo, Brazil).; No mutagenicity (Ames Salmonella) was detected in the water samples.; Acute (Daphnia simillis) and chronic (Ceriodaphnia dubia) toxicities were however recorded.; Results suggest potential risk to the environmental and public health. |
| Databáze: | OpenAIRE |
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