learning objectives of water pollution

Pollution prevention approaches can be applied to all potential and actual pollution-generating activities, including those found in the energy, agriculture, federal, consumer and industrial sectors. There are many other ways to remediate polluted groundwater. Objectives: The students will develop a definition of water pollution that will be used for this series of lessons. Point sources of pollution include animal “factory” farms that raise a large number and high density of livestock such as cows, pigs, and chickens (see Figure A Commercial Meat Chicken Production House) and discharge pipes from a factories or sewage treatment plants. The dissolved oxygen content in such a river ranges from 10 to 14 ppm O2, BOD is low, and clean-water fish, e.g., bass, trout, and perch dominate. Then, bacteria begin to decompose the remaining oil, in a process that can take many years. Other water pollutants include sediment and heat. Similarly, at the international level the World Health Organization has drinking water standards for a variety of contaminants. Retrieved from http://www.who.int/whosis/whostat/EN_WHS10_Full.pdf, [latex]{\text{CH}}_{2}O+{O}_{2}\to {\text{CO}}_{2}+{H}_{2}O[/latex], Sustainability: A Comprehensive Foundation, http://www.who.int/water_sanitation_health/waterforlife.pdf, http://www.who.int/whosis/whostat/EN_WHS10_Full.pdf, http://cnx.org/contents/1741effd-9cda-4b2b-a91e-003e6f587263@44.1, understand the major kinds of water pollutants and how they degrade water quality, understand how and why the lack of safe drinking water in some parts of the world is a major problem, know what sewage treatment does and why it is important, know why it is more difficult to remediate groundwater pollution than surface water pollution, understand how we can work toward solving the crisis involving water pollution. Advanced deep-learning algorithms are increasingly used for the analysis of water quality data [18, 130, 131]. Pathogens are disease-causing microorganisms, e.g., viruses, bacteria, parasitic worms, and protozoa, which cause a variety of intestinal diseases such as dysentery, typhoid fever, hepatitis, and cholera. Anaerobic decomposition of sludge produces methane gas, which can be used as an energy source. Source: Stephen Codrington at Wikimedia Commons, Sources of Water Contamination Sources of some water pollutants and movement of pollutants into different water reservoirs of the water cycle. By the time groundwater contamination is detected, the entity responsible for the pollution may be bankrupt or nonexistent. Storm Drain Curbside storm drain receiving urban runoff. This explains why N and P are major ingredients in most fertilizer. Hard water develops naturally from the dissolution of calcium and magnesium carbonate minerals in soil; it does not have negative health effects in people. Why is untreated sewage such an important water pollutant to remediate? Other chemicals that exhibit biomagnification are DDT, PCBs, and arsenic. Water in rivers has a relatively short residence time, so pollution usually is there only briefly. Groundwater pollution can occur from underground sources and all of the pollution sources that contaminate surface waters. Combined sewer systems that have a single set of underground pipes to collect both sewage and storm water runoff from streets for wastewater treatment can be major point sources of pollutants. Source: World Health Organization, Deaths by Country from Diarrhea Caused by Unsafe Water, Unimproved Sanitation, and Poor Hygiene in Children Less than 5 Years Old, 2004 Source: World Health Organization, Percentage of Impaired Water Bodies in a Watershed by State in USA Based on US EPA Data in 2000 Map of watersheds containing impaired water bodies from the U.S. Environmental Protection Agency’s 1998 list of impaired waters Source: U.S. Geological Survey. Specific things that we can do to reduce urban runoff include the following: keep soil, leaves, and grass clippings off driveways, sidewalks, and streets; don’t pour used motor oil, antifreeze, paints, pesticides, or any household hazardous chemical down the storm sewer or drain; recycle used motor oil; use hazardous waste disposal programs offered by the community; compost your organic waste; don’t use fertilizers and herbicides on your lawn; and flush pet waste down the toilet. Explore the structure of the water molecule, the water cycle, and the changing water content in the atmosphere. We have moved all content for this concept to for better organization. Pollutants are derived from biological, chemical, or physical processes. Fish and other aquatic organisms absorb methylmercury rapidly but eliminate it slowly from the body. Source: Kai Schumann via National Oceanic and Atmospheric Administration, Aquatic Dead Zones Zones of hypoxia shown as red circles. Interpreting Art: Students will describe the artworks shown and interpret how they depict water. The level of water pollution depends on the abundance of the pollutant, the ecological impact of the pollutant, and the use of the water. Compared to other molecules of similar molecular weight, water (H2O) has unique physical properties including high values for melting and boiling point, surface tension (water’s cohesion, or “stickiness”), and capacity to dissolve soluble minerals, i.e., act as a solvent. Unfortunately, many of the wells produced water naturally rich in arsenic. The course will to enable participants to: Identify the main drivers and impacts of water pollution; Become familiar with how water pollution is being addressed from global to local levels through Sustainable Development Goal (SDG) Targets and indicators; Much of the sediment in water bodies is derived from the erosion of soil, so it also represents a loss of agricultural productivity. Water pollution problems occur if the septic tank malfunctions, which usually occurs when a system is established in the wrong type of soil or maintained poorly. Mercury concentrates in the food chain, especially in fish, in a process caused biomagnification (see Sidebar Biomagnification). In-situ treatment methods include adding chemicals to immobilize heavy metals, creating a permeable reaction zone with metallic iron that can destroy organic solvents, or using bioremediation by adding oxygen or nutrients to stimulate growth of microorganisms. Oxygen-demanding waste is an extremely important pollutant to ecosystems. Discuss how sewage is related to eutrophication, biochemical oxygen demand (BOD), and dissolved oxygen. The contamination of lakes, rivers, oceans, aquifers and other water bodies leads to water pollution, which can be natural or human induced. The Cuyahoga River in northeast Ohio caught fire numerous times (see Figure Cuyahoga River on Fire), including a famous fire in 1969 that caught the nation’s attention. Cleanup operations can include skimmer ships that vacuum oil from the water surface (effective only for small spills), controlled burning (works only in early stages before the light, ignitable part evaporates but also pollutes the air), dispersants (detergents that break up oil to accelerate its decomposition, but some dispersants may be toxic to the ecosystem), and bioremediation (adding microorganisms that specialize in quickly decomposing oil, but this can disrupt the natural ecosystem). Nonpoint source pollution, which is the leading cause of water pollution in the U.S., is usually much more difficult and expensive to control than point source pollution because of its low concentration, multiple sources, and much greater volume of water. Based on the lab results, what conclusions can be drawn about each site? Learning Objectives Water What impact do I want this module experience to have on students, which will still be there a year or more after the course is over? Share the related water, air, noise, ocean, soil, light and land pollution and oil spills lessons for each lesson plan with students in class to make learning fun and engaging. Toxic Release Inventory (TRI) and the Mexican Registry of Emissions and Transfers of Pollutants (RETC), along with other sources of environmental information, share information regarding activities contributing pollution to transboundary air and/or water basins along the border. This topic identifies the key learning points of the forms of water, composition and chemistry of water, water pollution, mineral, mining and processing ore. Some cities such as Chicago, Illinois have constructed large underground caverns and also use abandoned rock quarries to hold storm sewer overflow. Water Pollution Essay 3 (200 Words) Water Pollution is a matter of environmental concern as well as life and health of all living species. As a result, fish, amphibians, reptiles, insects, arachnids, invertebrates and mammals that are part of a polluted water ecosystem die or are restricted in their natural habitat. Learning Objectives. It also aims to increase global warming , affect climate change and deplete the ozone layer . According to the World Health Organization, in 2008 approximately 880 million people in the world (or 13% of world population) did not have access to improved (safe) drinking water (World Health Statistics, 2010) (See Figure Proportion of Population by Country Using Improved Drinking Water Sources in 2008). It is an Act to provide for the prevention and control of water pollution and the maintaining or restoring of wholesomeness of water for the establishment, with a view to carrying out the purposes aforesaid, of Boards for the prevention and control of water pollution, for conferring on and assigning to such Boards powers and functions relating thereto and for matters connected therewith. During heavy rain, storm water runoff may exceed sewer capacity, causing it to back up and spilling untreated sewage into surface waters (see Figure Combined Sewer System). In the methylmercury form (CH3Hg+) it is highly toxic; ≥ 1 ppb of methylmercury represents water contaminated with mercury. This has led to contamination of In addition to the global waterborne disease crisis, chemical pollution from agriculture, industry, cities, and mining threatens global water quality. Specific treatment methods depend on the geology, hydrology, and pollutant because some light contaminants flow on top of groundwater, others dissolve and flow with groundwater, and dense contaminants can sink below groundwater. A common cleanup method called pump and treat involves pumping out the contaminated groundwater and treating it by oxidation, filtration, or biological methods. To give you a different perspective on appreciating small concentration units, converting 1 ppm to length units is 1 cm (0.4 in) in 10 km (6 miles) and converting 1 ppm to time units is 30 seconds in a year. Bacteria decompose dead organic matter (chemically represented in a simplified way as CH2O) and remove dissolved oxygen (O2) according to the following reaction: Too much decaying organic matter in water is a pollutant because it removes oxygen from water, which can kill fish, shellfish, and aquatic insects. If you don’t like the taste of your tap water, then please use a water filter instead of bottled water! Why? Compare the goals of the Safe Drinking Water Act and the Clean Water Act. During dry weather (and small storms), all flows are handled by the publicly owned treatment works (POTW). Groundwater is typically characterized by slow flow and longer residence time, which can make groundwater pollution particularly problematic. An unpolluted water body with respect to oxygen is a turbulent river that flows through a natural forest. Students see bodies of water as they travel, or perhaps locally, and the water may appear to be clean and safe, but sometimes pollutants change the water. Distinguish between oligotrophic and eutrophic lakes and explain how humans induce artificial eutrophication. Oil spills can result from supertanker accidents such as the Exxon Valdez in 1989, which spilled 10 million gallons of oil into the rich ecosystem of offshore south Alaska and killed massive numbers of animals. Cuyahoga River on Fire Source: National Oceanic and Atmospheric. The worst oil spill ever occurred during the Persian Gulf war of 1991, when Iraq deliberately dumped approximately 200 million gallons of oil in offshore Kuwait and set more than 700 oil well fires that released enormous clouds of smoke and acid rain for over nine months. Water with pathogens can be remediated by adding chlorine or ozone, by boiling, or by treating the sewage in the first place. Contaminant Plume in Groundwater Mapping how a contaminant plume will migrate once it reaches groundwater requires understanding of the pollutant’s chemical properties, local soil characteristics, and how permeable the aquifer is. Algal Bloom in River in Sichuan, China Algal blooms can present problems for ecosystems and human society. Our Water Crisis Lesson Plans, for grades K-12, are packed with engaging lesson for students.Written by a certified teacher with a busy professional in mind, we're sure you'll find the activities useful out-of-the-box or as a great head start. It also included quality objective legislation on fish waters, shellfish waters, bathing waters and groundwaters. 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