Investigação dos efeitos ecotoxicológicos de duas nascentes do parque maria pires perillo, Trindade, GO, Brasil

Abstract

OBJECTIVE: to investigate the ecotoxicological effects of waters from two springs in Parque Maria Pires Perillo, in Trindade-GO, through germination tests with Solanum lycopersicum seeds and acute toxicity analyzes with the microcrustacean Artemia salina. MATERIAL AND METHODS: The research was conducted in Trindade-GO, in Parque Maria Pires Perillo. Phytotoxicity was evaluated through the tomato seed germination process and analysis of initial growth. For acute toxicity, Artemia salina nauplii were used, exposed to spring water for 24 hours. Statistical analysis included ANOVA and Tukey's test at 5% significance. RESULTS: Both springs contained water without odor or visible luminosity, with loss of pollution. At Spring 2, floating materials were distributed. According to the Springs Environmental Impact Index, both springs were alternatives with a reasonable degree of preservation (Class C). The germination rate of seeds related to water from springs 1 and 2 did not show a statistically significant difference in relation to the control group. The highest IVG was observed in seeds subjected to spring water 2. In the test with Artemia salina, a higher mortality rate was observed in nauplii exposed to spring water 2. CONCLUSION: Despite a reasonable degree of preservation, the springs did not reveal signs. of pollution, although Spring 2 showed the presence of floating materials and a greater influence on nauplii mortality.