In aquatic ecosystems, sediments are reservoirs of heavy metals when their waters are exposed. The purpose of the study was to quantify metals in surface sediments of the interior bay of Puno, Lake Titicaca, Peru. From january to november 2016 of Cu, Zn, Pb, Cd, As and Hg concentrations were analyzed in the surface sediments of six selected environmental sampling stations by non-probabilistic sampling for convenience. The metals were analyzed by acid digestion where their quantification was by inductively coupled plasma spectrometry with axial view (ICP-AES). When comparing the results with the selected environmental standard, all the elements had concentrations in the recommended ranges, although statistically significant differences existed between the stations (p<0,05). The As and Hg, presented similarities in their values (0,0001 mg.L-1) between the stations. As and Hg, presented ...

The inner Puno bay is a restricted area and one of the habitats of Lake Titicaca with high anthropization, where some organic and inorganic elements may be exceeding the thresholds allowable concentrations. The aim of the research was to determine interactively total metals available in the waters of the inner Puno bay of Lake Titicaca, Peru. It was conducted between January and November 2016 by a non-probabilistic for convenience and applying the theoretical method by comparison among six stations of selection. Cu, Zn, Pb, Cd,As, Hg were the determined and quantified elements using atomic absorption spectrometry by inductively coupled plasma with axial view (ICP-AES). It was observed that between the stations there were no statistically significant differences (p ≤ 0.05) when there was an availability of exposure among all the elements, although when comparing each element per station...

In aquatic ecosystems, sediments are reservoirs of heavy metals when their waters are exposed. The purpose of the study was to quantify metals in surface sediments of the interior bay of Puno, Lake Titicaca, Peru. From january to november 2016 of Cu, Zn, Pb, Cd, As and Hg concentrations were analyzed in the surface sediments of six selected environmental sampling stations by non-probabilistic sampling for convenience. The metals were analyzed by acid digestion where their quantification was by inductively coupled plasma spectrometry with axial view (ICP-AES). When comparing the results with the selected environmental standard, all the elements had concentrations in the recommended ranges, although statistically significant differences existed between the stations (p<0,05). The As and Hg, presented similarities in their values (0,0001 mg.L-1) between the stations. As and Hg, presented ...

The inner Puno bay is a restricted area and one of the habitats of Lake Titicaca with high anthropization, where some organic and inorganic elements may be exceeding the thresholds allowable concentrations. The aim of the research was to determine interactively total metals available in the waters of the inner Puno bay of Lake Titicaca, Peru. It was conducted between January and November 2016 by a non-probabilistic for convenience and applying the theoretical method by comparison among six stations of selection. Cu, Zn, Pb, Cd,As, Hg were the determined and quantified elements using atomic absorption spectrometry by inductively coupled plasma with axial view (ICP-AES). It was observed that between the stations there were no statistically significant differences (p ≤ 0.05) when there was an availability of exposure among all the elements, although when comparing each element per station...

The inner Puno bay is a restricted area and one of the habitats of Lake Titicaca with high anthropization, where some organic and inorganic elements may be exceeding the thresholds allowable concentrations. The aim of the research was to determine interactively total metals available in the waters of the inner Puno bay of Lake Titicaca, Peru. It was conducted between January and November 2016 by a non-probabilistic for convenience and applying the theoretical method by comparison among six stations of selection. Cu, Zn, Pb, Cd,As, Hg were the determined and quantified elements using atomic absorption spectrometry by inductively coupled plasma with axial view (ICP-AES). It was observed that between the stations there were no statistically significant differences (p ≤ 0.05) when there was an availability of exposure among all the elements, although when comparing each element per station...

In aquatic ecosystems, sediments are reservoirs of heavy metals when their waters are exposed. The purpose of the study was to quantify metals in surface sediments of the interior bay of Puno, Lake Titicaca, Peru. From january to november 2016 of Cu, Zn, Pb, Cd, As and Hg concentrations were analyzed in the surface sediments of six selected environmental sampling stations by non-probabilistic sampling for convenience. The metals were analyzed by acid digestion where their quantification was by inductively coupled plasma spectrometry with axial view (ICP-AES). When comparing the results with the selected environmental standard, all the elements had concentrations in the recommended ranges, although statistically significant differences existed between the stations (p<0,05). The As and Hg, presented similarities in their values (0,0001 mg.L-1) between the stations. As and Hg, presented ...

The inner Puno bay is a restricted area and one of the habitats of Lake Titicaca with high anthropization, where some organic and inorganic elements may be exceeding the thresholds allowable concentrations. The aim of the research was to determine interactively total metals available in the waters of the inner Puno bay of Lake Titicaca, Peru. It was conducted between January and November 2016 by a non-probabilistic for convenience and applying the theoretical method by comparison among six stations of selection. Cu, Zn, Pb, Cd,As, Hg were the determined and quantified elements using atomic absorption spectrometry by inductively coupled plasma with axial view (ICP-AES). It was observed that between the stations there were no statistically significant differences (p ≤ 0.05) when there was an availability of exposure among all the elements, although when comparing each element per station...

In aquatic ecosystems, sediments are reservoirs of heavy metals when their waters are exposed. The purpose of the study was to quantify metals in surface sediments of the interior bay of Puno, Lake Titicaca, Peru. From january to november 2016 of Cu, Zn, Pb, Cd, As and Hg concentrations were analyzed in the surface sediments of six selected environmental sampling stations by non-probabilistic sampling for convenience. The metals were analyzed by acid digestion where their quantification was by inductively coupled plasma spectrometry with axial view (ICP-AES). When comparing the results with the selected environmental standard, all the elements had concentrations in the recommended ranges, although statistically significant differences existed between the stations (p<0,05). The As and Hg, presented similarities in their values (0,0001 mg.L-1) between the stations. As and Hg, presented ...

Se realizó un estudio sobre ecotoxicología acuática por exposición a metales en el ecosistema San Juan de Santiago de Cuba, Cuba durante el periodo de lluvia y estiaje del 2018. El objetivo de la investigación fue predecir la ecotoxicología por metales mediante el costo ambiental sostenible, biomarcadores y el modelo computacional Gecotoxic. Se seleccionó, cinco estaciones para estimar el costo ambiental sostenible relativo (COASOR ) según parámetros físico-químicos (PFQ) seleccionados (dureza total: DT, pH, biom sólidos totales: ST, oxígeno disuelto: OD y la demanda bioquímica de oxígeno: DBO . Se determinó la 5,20 concentración de Cu, Zn, Pb, Cd en agua y sedimentos (lluvia). Se utilizó a Gambusia punctata (Poey, 1854) como biomonitor cuantificándose los metales (Ms) en las branquias, hígado y cerebro, además, de medirse el factor de condición de Fulton, reproducc...

Pollution of the Lake Titicaca's interior bay is one of the environmental concerns about this ecosystem where the search for new assessments for decision-making is a scientific challenge. The purpose of the study was to evaluate the stationary quality of water according to the relative sustainable environmental cost with aggregation of biomarkers: Puno Bay, Lake Titicaca, Peru. In the area of proximity to the effluents discharge by the Espinar oxidation lagoon of (15°51.073 / 69"59.729 at a depth of 1.8 m) dissolved oxygen, pH, total dissolved solids, electrical conductivity, Cu+, Zn+, Pb+, Fe+, Cd+, Al+, Cl-, NO3 - and NO2 - was measured. Likewise, the mean lethal concentration (LC50) in the species Gambusia punctata (Poey, 1854) was also evaluated. With all the measurements, the relative sustainable environmental cost with biomarker aggregation (COASORbio...

Pollution of the Lake Titicaca's interior bay is one of the environmental concerns about this ecosystem where the search for new assessments for decision-making is a scientific challenge. The purpose of the study was to evaluate the stationary quality of water according to the relative sustainable environmental cost with aggregation of biomarkers: Puno Bay, Lake Titicaca, Peru. In the area of proximity to the effluents discharge by the Espinar oxidation lagoon of (15°51.073 / 69"59.729 at a depth of 1.8 m) dissolved oxygen, pH, total dissolved solids, electrical conductivity, Cu+, Zn+, Pb+, Fe+, Cd+, Al+, Cl-, NO3 - and NO2 - was measured. Likewise, the mean lethal concentration (LC50) in the species Gambusia punctata (Poey, 1854) was also evaluated. With all the measurements, the relative sustainable environmental cost with biomarker aggregation (COASORbio...

Pollution of the Lake Titicaca's interior bay is one of the environmental concerns about this ecosystem where the search for new assessments for decision-making is a scientific challenge. The purpose of the study was to evaluate the stationary quality of water according to the relative sustainable environmental cost with aggregation of biomarkers: Puno Bay, Lake Titicaca, Peru. In the area of proximity to the effluents discharge by the Espinar oxidation lagoon of (15°51.073 / 69"59.729 at a depth of 1.8 m) dissolved oxygen, pH, total dissolved solids, electrical conductivity, Cu+, Zn+, Pb+, Fe+, Cd+, Al+, Cl-, NO3 - and NO2 - was measured. Likewise, the mean lethal concentration (LC50) in the species Gambusia punctata (Poey, 1854) was also evaluated. With all the measurements, the relative sustainable environmental cost with biomarker aggregation (COASORbio...

Pollution of the Lake Titicaca's interior bay is one of the environmental concerns about this ecosystem where the search for new assessments for decision-making is a scientific challenge. The purpose of the study was to evaluate the stationary quality of water according to the relative sustainable environmental cost with aggregation of biomarkers: Puno Bay, Lake Titicaca, Peru. In the area of proximity to the effluents discharge by the Espinar oxidation lagoon of (15°51.073 / 69"59.729 at a depth of 1.8 m) dissolved oxygen, pH, total dissolved solids, electrical conductivity, Cu+, Zn+, Pb+, Fe+, Cd+, Al+, Cl-, NO3 - and NO2 - was measured. Likewise, the mean lethal concentration (LC50) in the species Gambusia punctata (Poey, 1854) was also evaluated. With all the measurements, the relative sustainable environmental cost with biomarker aggregation (COASORbio...

Water quality of the inner Puno Bay was evaluated; we established 12 stations, and were assessed monthly from December 2010 to April 2011. Physicochemical water parameters were determined with EPA and APHA standard methods. Nutrients were determined spectrophotometrically. The parameters of temperature, dissolved oxygen, pH, phosphates, nitrates and nitrites of water show that the outlet of the stabilization lagoon of Puno City (Espinar Island) is a critical area of contamination at the inner Puno Bay. Transparency values were low. The electrical conductivity of water showed high values. Alkalinity values were high (75 - 150 mg/L) and very high (> 150 mg/L), indicating a high content of carbonates and bicarbonates. Water hardness were high (121-180 mg/L) and very high (> 180 mg/L). High levels of fecal coliform in waters near the island Espinar would be the result of wastewater dis...

Water quality of the inner Puno Bay was evaluated; we established 12 stations, and were assessed monthly from December 2010 to April 2011. Physicochemical water parameters were determined with EPA and APHA standard methods. Nutrients were determined spectrophotometrically. The parameters of temperature, dissolved oxygen, pH, phosphates, nitrates and nitrites of water show that the outlet of the stabilization lagoon of Puno City (Espinar Island) is a critical area of contamination at the inner Puno Bay. Transparency values were low. The electrical conductivity of water showed high values. Alkalinity values were high (75 - 150 mg/L) and very high (> 150 mg/L), indicating a high content of carbonates and bicarbonates. Water hardness were high (121-180 mg/L) and very high (> 180 mg/L). High levels of fecal coliform in waters near the island Espinar would be the result of wastewater dis...