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2014
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3 pages
1 file
AI-generated Abstract
This study evaluates the water quality of Glen Helen during Fall 2014, focusing on the concentrations of various anions and metals in groundwater samples. Key findings indicate that nitrate levels in one monitoring well exceeded EPA drinking water standards, prompting the installation of a reverse-osmosis system, while sulfate levels remained below regulations. The presence of iron and arsenic was documented, with iron causing discoloration in local springs. Other water quality parameters, including dissolved oxygen and pH, remained within expected ranges, although turbidity was notably higher at certain sites. Additionally, the Ohio EPA was alerted to potential groundwater contamination from a foundry wastewater pond.
2012
Temperature (°C) Weather conditions got warmer as sampling dates proceed onward. Temperature ranging from 9.4 to 20.4 °C.
2017
Investigating Potential Pollutant Sources Causing Lack of Biodiversity in Lytle Creek and Indian Run. Limited macroinvertebrate biodiversity in Lytle Creek that runs through downtown Wilmington, Ohio has been documented over decades with the lowest in Lytle Creek at Sugar Grove Cemetery. Lytle Creek, a tributary of the Little Miami River, is a conduit for storm water and wastewater from an airport, downtown storm water with input from local businesses, and a wastewater treatment plant. This study was conducted to see if heavy metal pollution in the sediment, water quality, and Escherichia coli (E. coli) could be contributing factors in reduced macroinvertebrate populations. Eight sites were chosen for sediment sampling to measure trace metals. Mercury (Hg) using cold vapor atomic fluorescence spectrometry. Aluminum (Al), arsenic (As), cadmium (Cd), chromium (Cr), copper (Cu), iron (Fe), manganese (Mn), nickel (Ni), lead (Pb), strontium (Sr), and zinc (Zn) were determined by inductively-coupled plasma optical emission spectrometry (EPA method 200.7). Mercury concentrations ranged from 0.0120-0.2920 mg/kg dry wt. The highest level of mercury was found at one of the three areas we collected sediment samples from at Lytle Creek at Sugar Grove Cemetery, at a value of 0.2920 mg/kg dw, which exceeded threshold effect concentration (TEC) of 0.18 mg/kg dw. Mercury values were also high at Xidas Park, but it was just below (TEC). Lead was vi TABLE OF CONTENTS 1.
Journal of Chemical Education, 2019
A service-learning course at a mid-sized Midwestern research university was modified over a period of six years to integrate best-practice pedagogies that have been shown to increase civic engagement by students. Best-practice pedagogies included regular interaction with community partner(s), significant time spent on the service activity, and regular reflection (written and verbal) on the implications of the service activity. Besides water quality monitoring, students performed private well water analysis, wrote multiple formal reflection papers, and presented a public talk on the results of their project that included significant discussion time with community partners. Authentic expression of civic
Journal of Chemical Education, 2012
A collaborative environmental service-learning project was implemented between upper-level undergraduate science majors and graduate chemistry students at a large state school and first-year students at a small private liberal arts college. Students analyzed the water quality in a nature preserve by determining the quantities of 12 trace metals, seven anions including nitrate and phosphate, and Escherichia coli and coliform bacteria. Dissolved oxygen, temperature, and pH were recorded in the field as well. Students publicly communicated their results by creating deliverables such as a standard operating procedures manual, a PowerPoint presentation, and a professional-quality poster. The project was successful and student learning and interest in environmental chemistry were enhanced. The community response was particularly positive.
se originó en Alemania, en el año 1517, cuando Martin Lutero publicó las "95 tesis" contra la venta de indulgencias, en la puerta de la iglesia de Wittenberg. En el siglo XVI el continente europeo fue sacudido por una serie de movimientos religiosos que cuestionaban abiertamente los dogmas de la Iglesia Católica y la autoridad del Papa. Estos movimientos, conocidos genéricamente como Reforma Religiosa Protestante, fueron aparentemente de carácter religioso. Sin embargo, tenía causas económicas ya que la Iglesia Católica defendía el precio justo; También jugaron un papel decisivo los príncipes alemanes en la Reforma Protestante, ya que, protegieron y ayudaron a Martin Lutero en la difusión de la Reforma Protestantes en sus territorios; sin embargo los gobernantes alemanes no fueron movidos por motivos religiosos, sino más bien por la sed de bienes o riquezas que poseía la Iglesia Católica en sus territorios (expropiación de bienes de la Iglesia).
PALMIERI, Valentino, “Lo specchio di un sogno. L’architettura come riflesso di un’utopica realtà”, 2024
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