title: Ecotoxicological water assessment of an estuarine river from the Brazilian Northeast, potentially affected by industrial wastewater discharge.
abstract: Water pollution generated by industrial effluents discharge is a threat to the maintenance of aquatic ecosystems and human development. The Jundiai River estuarine, located in Northeast Brazil, receives an industrial pretreated effluent load from the city of Macaíba/RN/Brazil. The present study aimed to assess the water quality of this water reservoir through i) physicochemical characterization, ii) quantification of metal concentration and iii) by an ecotoxicological assessment carried out using Mysidopsis juniae and Pomacea lineata. The study was performed throughout the period comprising May to September 2014. Physicochemical variables such as chloride, total solids and electrical conductivity presented values in the waste discharge point, significantly different with those located out of the waste releasing point. Apart from that, metal concentration showed variable behavior throughout the monitored period. Levels of Al, Fe, Cu, Cd, Cr, Ni, Pb and Ag were over the considered guidelines. Both natural and anthropogenic sources seem to be involved in the resulting environmental scenario. A reduction in the fecundity rate (using Mysidopsis juniae) along with an increase in mortality rate (in both species) was observed ratifying the presence of toxic substances in this water reservoir. Moreover, a correlation analysis stated an association of the aforementioned toxicological effects with the delivery of industrial waste products. The ecotoxicological assessment performed highlighted the presence of toxic substance/s in water from the Jundiai River. Especially as a consequence of industrial activity, a fact that might threaten the bioma and, therefore, the human health of the population settled in the studied region.
authors: Universidade Federal do Rio Grande do Norte, Programa de Pós-Graduação em Desenvolvimento e Meio Ambiente, Av. Sen. Salgado Filho 3000, 59078-970 Natal, RN, Brazil.
authors: Piatã
authors: P
authors: de Melo Gurgel
authors: Universidade Federal do Rio Grande do Norte, Programa de Pós-Graduação em Desenvolvimento e Meio Ambiente, Av. Sen. Salgado Filho 3000, 59078-970 Natal, RN, Brazil.
authors: Julio Alejandro
authors: JA
authors: Navoni
authors: Universidade Federal do Rio Grande do Norte, Programa de Pós-Graduação em Desenvolvimento e Meio Ambiente, Av. Sen. Salgado Filho 3000, 59078-970 Natal, RN, Brazil; Núcleo de Análises de águas, alimentos e efluentes, Instituto Federal de Tecnologia do Rio Grande do Norte (IFRN), Natal, Brazil.
authors: Douglisnilson
authors: D
authors: de Morais Ferreira
authors: Universidade Federal do Rio Grande do Norte, Programa de Pós-Graduação em Desenvolvimento e Meio Ambiente, Av. Sen. Salgado Filho 3000, 59078-970 Natal, RN, Brazil. Electronic address: vi.mariga@gmail.com.
authors: Viviane Souza
authors: VS
authors: do Amaral
mesh_terms: D000818:Animals; D001938:Brazil; D003445:Crustacea / Q000187:drug effects*; D004784:Environmental Monitoring; D063366:Estuaries; D008670:Metals / Q000633:toxicity*; D045483:Rivers / Q000737:chemistry; D012908:Snails / Q000187:drug effects*; D062065:Wastewater / Q000032:analysis / Q000633:toxicity*; D014874:Water Pollutants, Chemical / Q000633:toxicity*; D060753:Water Quality
chemical_list: D008670:Metals; D062065:Wastewater; D014874:Water Pollutants, Chemical
keywords: Brazil; Ecotoxicology; Estuarine river; Metal pollution; Mysidopsis juniae; Pomacea lineata