Major ions and elements of 34 groundwater samples were measured, and the piper trilinear diagram and expanded durov diagram were used to analyze the chemical types and hydrogeochemical processes of the groundwater. Power plants, for example, produce a huge amount of heat. Pollutants and contaminants can be removed from groundwater by applying varioustechniques thereby making the groundwater safe for use. Groundwater can become polluted through percolation of contaminated surface waters. Cross section of a losing stream, stream, which is typical of humid which is typical of arid regions, regions, where streams can recharge where groundwater recharges groundwater streams basic cycle. G roundwater quality comprises the physical, chemical, and biological qualities of ground water. Groundwater quality and groundwater pollution thomas harteris uc cooperative extension hydrogeology specialist, university of california, davis, and kearney agricultural center. As our world population continues to grow, the problem of pollution continues to grow as well. Groundwater remediation is the process that is used to remove pollution fromgroundwater. Tcss earth systems unit 4 surface processes information georgia performance standards. Temperature, turbidity, color, taste, and odor make up the list of physi. As described in the introductory chapter, source identification and characterization can be more difficult for groundwater than for other environmental pathways. However, metallic contaminants can also enter groundwater through erosion as the water travels through layers of rock and minerals.
If the sedimentrock is permeable, the water will flow easily through the sedimentrock and provide a good supply of water for a well. Groundwater contamination issues swgw relations humid vs arid zones. Hydraulic fracturing and horizontal drilling are safely unlocking vast u. This includes assignments, labs and field activities. What are some indicators in ground water that a landfill could be. Ap environmental science water pollution webquest use the links provided to find your answers. Students will explore the actions of water, wind, ice, and gravity that create landforms and systems of landforms landscapes. What are some examples of nonpoint sources of groundwater contamination. Groundwater remediation techniques are mainly divided into two technologies. Found in both surface water and groundwater, nitrates enter the water supply. In some areas of the world, people face serious water shortages because groundwater is used faster than it is naturally replenished.
Groundwater level and water quality monitoringwas carried out during 1997 and 1998 in patancheru andits. These include a series of four short educational videos for the texas water development board to teach citizens of texas about aquifers, groundwater availability. Under science click the link for the groundwater contamination webquest. This site is like a library, use search box in the widget to get ebook that you want. The contamination of groundwater, which is a principal source of drinking water, is a serious health and environmental problem in many areas of the united. Below is a list of some contaminants that can occur in groundwater.
In this ground water contamination lesson plan, students create a mini well and simulate ground water flow through the well with a contaminate food coloring. Nitrates are a form of nitrogen found in animal wastes, chemical fertilizers and food preservatives. Drinking water contamination articles us drinking water widely contaminated scientific america article we cant assume our water is safe to drink nat geo article. Water pollution is the contamination dirtying of our water bodies. To begin to address pollution prevention or reme diation, we must understand.
Point source plumes differ from area plumes in that they typically show a range of concentrations, from high to low, that vary with distance from the point source. Eager scientists complete a webquest to explore what. Probably the greatest threat is exposure to undetected contamination. Describe how surface water and groundwater act as the major agents of physical and chemical weathering. But, natural and humaninduced chemicals can be found in groundwater. Air pollution can cause coughing, burning eyes, and breathing problems. Efforts by state and local agencies between 20 and 2015 worked to address the potential negative health impacts of the contamination. Contamination pollution signifies any degradation of natural ground water quality while contamination is reserved for pollution that constitutes a hazard to human health 4. Students will address these issues and make decisions to understand all aspects of the issue.
Groundwater, other water sources concept 203a chemicals used in agriculture, industry, transportation, and homes can spill and leak into groundwater and make it undrinkable. The ability of a sedimentrock to provide a steady water supply is limited by its permeability, even when fully saturated. In this webquest you will discover what groundwater contamination is and why we need to know about it. Why is it important to try to keep water out of a landfill. However, the dependence of water quality and eutrophication on flushing, hydrodynamic turnover. This form of environmental degradation occurs when pollutants are directly or indirectly discharged into water bodies without adequate treatment to remove harmful compounds. After reading page 401, explain why some communities conserve water. You are responsible for understanding the material through this webquest. Groundwater webquest in this webquest you will discover what groundwater is and why we need to know about it. Water pollution is the contamination of water bodies e. Groundwater contamination is defined by the tgpc as any detrimental alteration of the naturallyoccurring quality of groundwater. The water on the surface will pick up any contaminates on the ground and. Groundwater webquest groundwater webquest use online resources to answer the following questions in your interactive notebook 1 what is groundwater 2. Use the pages and activities to answer the following questions.
Groundwater contamination occurs when manmade products such as gasoline, oil, road salts and chemicals get into the groundwater and cause it to become unsafe and unfit for human use. Materials from the lands surface can move through the soil and end up in the groundwater. For example, pesticides and fertilizers can find their way into. Draw arrows to show the flow of groundwater in each image.
Draw the direction of the contaminated groundwater flow on the diagram. Groundwater pollution worksheet answers pdf teachengineering. Some of these change from year to year, and i dont use every assignment each year depending on the weather, but i tried to include everything ive used recently. What important areas of the city are affected by the contamination. Does pollution produced by others affect your daily life. Caribbean countries have been blessed with a plethora of natural resources. Pollution that has as its source a single or small point, which are usually spills or leaks from storage tanks. Chemicals that should be disposed of in hazardous waste landfills sometimes end up in municipal landfills. Reports typically include findings, conclusions, and recommendations based on information gathered by the committee and the committees deliberations. Developing energy from shale is an advanced process that uses the latest drilling technologies and equipment. The contamination of groundwater, which is a principal source of drinking water, is a serious health and environmental problem in many areas of the united states and the world. Groundwater supplies are replenished, or recharged, by rain and snow melt that seeps down into the cracks and crevices beneath the lands surface.
Contaminated groundwater can then affect the quality of surface water at. Groundwater contaminants and sources uc davis groundwater. Tcss earth systems unit 4 surface processes information. Groundwater moves underground through the tiny spaces between rocks. Label the water table, the pump, the screen, and casing. Groundwater and surface water answer key, continued 9. The water still flows deep underground where it is not frozen. Landfills solid waste is disposed of in thousands of municipal and industrial landfills throughout the country. Click download or read online button to get soil and groundwater pollution book now. Concept 203b there are both simple an complex ways to purify groundwater used as a source of drinking water, but protecting it through pollution. This is a list of the course materials i use in my environmental science course. During this investigation you will learn about the sources and impacts of groundwater contamination, how groundwater an unseen resource contamination is.
What fraction of the countrys lakes, rivers, and coastal waters were unsafe for fishing and swimming in 1972. Groundwater contamination an overview sciencedirect topics. Most groundwater contamination originates at the land surface and is classified as either point source, for example from spills or an industrial site, or nonpoint source, for example from agriculturerelated compounds. What are some examples of point sources of groundwater contamination. We will spend very little time discussing heavy metal contamination in class. Power plants are often located on rivers so they can use the water as a coolant. Groundwater pollution also called groundwater contamination occurs when pollutants are released to the ground and make their way down into groundwater. In other areas groundwater is polluted by human activities. Groundwater will normally look clear and clean because the ground naturally filters out particulate matter. Industries developed from natural resources in the caribbean. In addition, the disposal of many household wastes is not regulated. The purpose of this webquest is to inform students about the growing problem of pollution.
Groundwater contamination webquest in this webquest you will discover what groundwater contamination is and why we need to know about it. Groundwater contamination susceptibility model gcsm. You will also learn about various sources of contamination, how to investigate groundwater contamination, and ways to prevent it. Any body of rock or sediment in which water can flow and be stored is called a. Name 2 situations of pollution that led to the passing of the clean water act in 1972. In many parts of the world, especially where surface water supplies are not available, domestic, agricultural, and industrial water needs can only be met by using the water beneath the ground. In this webquest you will discover what groundwater. The impact of water pollution on the environment webquest. Groundwater is a critical natural resource that can be degraded by contamination. Unseen water pollution can usually be detected in a laboratory. Consensus study reports published by the national academies of sciences, engineering, and medicine document the evidencebased consensus on the studys statement of task by an authoring committee of experts. Pdf improper design of landfill sites may cause serious problems to groundwater. This concept has been developed from the vulnerability of. This type of water pollution can also occur naturally due to the presence of a minor and unwanted constituent, contaminant or impurity in the groundwater, in which case it is more likely referred to as contamination rather than pollution.
Examples of water bodies include lakes, rivers, ponds, and oceans. Groundwater webquest please start your quest at the following url. Table of contents stem project the nature of science go. See list of presentation concepts for regional, state, and national tournaments at awesome aquifer event page at. Groundwater is a natural resource that is used for drinking water, recreation, industry, and crops. The groundwater contamination susceptibility model gcsm for wisconsin estimates the susceptibility of the states groundwater to contamination from surface activities. In 2009, the kansas department of health and environment kdhe discovered groundwater contamination at a former industrial site in west wichita.
Groundwater contamination has been reported since 1985. Groundwater is fresh water from rain or melting ice and snow that soaks into. Figure 1 shows the locations of more than 4,000 public water wells in california. In this webquest, students will research the impact of human activities on water pollution, because humans are the main source of water pollution. An investigation of groundwater contamination around the likeng landfill, guangzhou, was carried out. Groundwater is the largest source of usable, fresh water in the world. Rain sometimes washes chemical pesticides off of plants and into streams. Webquest geochemist technician water quality go online concepts in motion worlds water supply visualizing springs saltwater contamination webquest hydrogeologist aquifers video what are you drinking. The contamination of groundwater, which supplies drinking water for onethird of the u. Air pollution webquest answer key pdf amazon s3 when it is polluted, they breathe in ozone, particles and harmful gases that can hurt their lungs, heart, and overall health. Water that soaks into the ground to recharge groundwater. The industries developed from these natural resources have created employment as well as foreign exchange earnings from exports.
The guideline is aimed at professionals as a manual or reference material for. Groundwater contamination is a lesson that teaches students about what contamination of the ground water is, where it comes from, and. A combination of moving groundwater and a continuous source of contamination can, therefore, pollute very large volumes and areas of groundwater. Aw e s o m e a q u i f e r s groundwater foundation. Pesticides can also seep into groundwater, the water beneath the surface of the earth. The risk of contamination of groundwater indicates that groundwater may be subject to unacceptable pollution due to human activities. But did you know that natural and humaninduced chemicals can be found in groundwater even if appears to be clean. Some pesticides remain in soil and water for many months to many years. Explain why ground water can only be found within a few miles of the earths surface. It is water found underground in the cracks and spaces in soil.
A natural flow of groundwater to the earths surface is known as. Learn vocabulary, terms, and more with flashcards, games, and other study tools. In the winter, the ground is frozen, so the water table doesnt flow along the surface. Chapter 2 groundwater contamination and its impacts. One of the laws of ecology says that everything must go somewhere. Another potential source of ground water contamination is animal wastes that percolate into the ground from farm feedlots. Some plumes at superfund sites are several miles long. The contamination of groundwater, which is a principal source of drinking water, is a. You will also learn about wells and how water enters and leaves them. In this day and age we have a great affect on the environment. In michigan, we have more public ground water supply systems than any other state, as well as more private household wells, so theres a good chance the water you drink comes from underground. Chapter 2 sources of groundwater contamination the first step in groundwater contamination risk assessment is to identify potential contaminant sources.
The main threats that face lagoons and estuaries are the point and nonpoint source pollution 16. Answer key groundwater pollution worksheet part 1 1. Soil and groundwater pollution download ebook pdf, epub. Since the contamination plume is underground it is not visible to scientists, what must they do in order to determine where the contamination plume is. Usgs water science school groundwater quiz how much do you know about the water below your feet. Groundwater webquest groundwater webquest use online. If you are standing on the ground, it is a safe bet that you are also standing on water more like, over water. A water conservation curriculum texas water development board introduction center for global environmental education ii include short, straightforward background articles for students, articulating the big ideas, and assessments to help teachers check for understanding. Go to the websites listed and answer the questions for each section. Idaho department of health and welfare division of health under a cooperative agreement with the. When ground water becomes contaminated, it is difficult and expensive to clean up. Groundwater contamination the national academies press. What are some of the parts of a landfill designed to prevent contamination to the surrounding environment. Groundwater is important because most of the population depends on underground water for drinking water.
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