Human Impact on Water Quality: Conducting Inquiry Activities With Cyber Databases and ICTs

Science Scope ◽  
2013 ◽  
Vol 037 (03) ◽  
Author(s):  
Hui-Yin Hsu ◽  
Shiang-Kwei Wang
Keyword(s):  
Author(s):  
E. Alexander, Jr.

The research underway has the following objectives: 1. To evaluate the water distribution within these two park areas; 2. To determine the effects of human impact upon the natural hydrologic system; 3. To document any detrimental effects to the water quality; 4. To document any instances in which the cave environment is adversely affected by the quality or quantity of the water present; and 5. To provide options to present water use practives, if necessary.


2016 ◽  
Vol 8 (1) ◽  
pp. 69-75
Author(s):  
Ildefonso Liñero Arana ◽  
Víctor H. Balarezzo ◽  
Héctor Eraso ◽  
Francisco Pacheco ◽  
Carolina E Ramos ◽  
...  

Ecuador is crossed by a network of rivers that originate mainly in the high Andean reliefs and pour into two basins: Amazon and Pacific. Many suffer from severe human impact. The main objective of the present study was to assess water quality of Mojarrero stream using biotic indices (BMWP/Col. and Shannon-Wiener index) as a tool to evaluate ecosystem health. During June, August and October 2014, bottom samples were taken at three stations. Each month and season three replicates of benthic aquatic invertebrates were taken on sandy-stony bottoms with a 0,3 mm mesh “D-net”. The fauna was represented by eleven orders and 29 families. The most abundant order was Coleoptera, representing 42,70% of total collected organisms, followed by Diptera (19,01%) and Ephemeroptera (11,38%). The most abundant family was Elmidae, with 568 individuals, (37,37% of total organisms), followed by Chironomidae (11,38%) and Baetidae (7,24%). Shannon diversity values ranged between 0,98 bits/ind. (June, EST. 2) and 2,23 bits/ind. (October, Est 1). The BMWP/Col. index values indicate that the river has a good environmental health on the high and low sections. The median section has some pollution, particularly during August and October.


Author(s):  

Analysis of many-year records on the Lake Kenon (the cooling pool for Chita TSP-1) water chemical composition collected by the authors and other researchers for a long period is presented. Water sampling on the water area and the tributaries has been done in order to reveal the pollution transfer routs. Application of water quality integral assessment method for water bodies subjected to considerable human impact has been verified. It enables the most effective planning of measures on restoration or degradation suspension of such water bodies. On the basis of the Lake Kenon water quality integral assessment the main pollutants contributing to the lake pollution have been stated. The ash damp filtration waters were identified as the most significant way of the water body pollution. Measures aimed at the water body restoration have been developed. It has been proposed to divide the lake with a dam into technogenic waste water and domestic waste water sections, and to move and to suspend operation of the ash dump. These measures correspond to the regulatory requirements, possibility of these measures implementation has been proved by hydrological calculations, while the water quality restoration has been proved by forecast calculation. Assessment of the construction cost according to aggregative indicators proves the possibility of the project implementation and its payback in 10 years due to reduction of the tariffs for water abstraction and disposal.


Author(s):  
E. Alexander, Jr. ◽  
Marsha Davis

The hydrologic study at Wind and Jewel Caves has the following Objectives: 1) to evaluate the water distribution within these two park areas; 2) to determine the effects of human impact upon the natural hydrologic system; 3) to document any detrimental effects to the water quality; 4) to document any instances in which the cave environment is adversely affected by the quality or quantity of the water present; and 5) to suggest options to change present water use practices, if necessary.


Author(s):  
Rebecca Laroche ◽  
Jennifer Munroe

Rebecca Laroche and Jennifer Munroe offer innovative approaches to teaching the embodied and collective history of human impact on the planet through early modern texts and contemporary ecofeminist theory. Combining Rob Nixon’s concept of “slow violence” (a way to understand environmental destruction over long periods of time) with an ecofeminist approach that “interrogates mutual forms of subjugation,” the authors stress how humans inhabit collective environments with other human and nonhuman entities. Their intersectional teaching strategy reflects this attitude by elevating collaborative scholarship, forging links between distinct classroom communities, and empowering students to historicize environmental problems, from water quality to wildfires. Students collaborate across geographic and institutional differences, and with scholarly efforts like the Early Modern Recipes Online Collective, to develop a heightened sense of both place and global interconnectedness.


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