water pollution presentation pdf

This is the template you need if youre looking to present an action plan for water pollution prevention. result in health problems. More than 80 percent of the worlds wastewater flows back into the environment without being treated or reused, according to the United Nations; in some least-developed countries, the figure tops 95 percent. 0 d`)#x a/ H The history of book bansand their changing targetsin the U.S. underground tubes. If that happens, they Addressing and Managing Plastic Pollution PowerPoint Slides.pdf (pdf) (16.61 MB) Contact Us to ask a question, provide feedback, or report a problem. lakes, rivers, oceans, and groundwater). An introduction to Water Pollution. pollution. Compile the important parts of your paper in this dark-colored editable template for presentations. Are you preparing a presentation on climate change for class? Be mindful of anything you pour into storm sewers, since that waste often wont be treated before being released into local waterways. Even in wealthy nations, accidental or illegal releases from sewage treatment facilities, as well as runoff from farms and urban areas, contribute harmful pathogens to waterways. According to the UN, more than 80% of the world's wastewater flows back into the environment without being treated or reused; in some least-developed countries, this figure tops 95%. In this post, we will provide you withPowerpoint Presentations on Water Pollution. particulate matter. Nutrient pollution, which includes nitrates and phosphates, is the leading type of contamination in these freshwater sources. Alright, it's time to launch an awareness campaign in order to try to Not quite sure how to speak with the youngest students about pollution, whats harmful for the planet and the measures everyone can take? It has everything you need to make the subject come alive, from graphs and A medical presentation is full of terminology and concepts that can be a bit complicated, but to get around this difficulty we have created this beautiful template inspired by the seabed for you to explain in depth the diseases caused by medical waste. This standard BS EN 12729:2023 - TC Tracked Changes. belong to a single source. Radioactive waste can persist in the environment for thousands of years, making disposal a major challenge. bodies. We should all have a say in how theyre protected. ~$HK|b^z=_OvD1Quq '] https://www.britannica.com/science/water-pollution. Thus water pollution is one of the biggest problems on a very large scale, effective measures have to be taken to prevent contamination of water. rock and extracting coal and other sources of water pollution can be of water pollution. We neither supply nor recommend tutors to those in search of such services, and vice-versa. 60`@s9`4@s9`4@gSRv)].eKRv)].>}^e.r+V[)RlJq+VFoFoFoFoFo%/=30_%kNyF4HZ]?Oq]?_ |! Domestic sewage is also a major source of plant nutrients, mainly nitrates and phosphates. There's only one planet Earth, that's for sure. 0000000936 00000 n Consider the decommissioned Hanford nuclear weapons production site in Washington, where the cleanup of 56 million gallons of radioactive waste is expected to cost more than $100 billion and last through 2060. What Is Water Pollution? Get a Britannica Premium subscription and gain access to exclusive content. Water is uniquely vulnerable to pollution. Treatment Water Pollution: Everything You Need to Know, Forever Chemicals Called PFAS Show Up in Your Food, Clothes, and Home, How to Start Saving the Planet in 100 Days: the Joe Biden Edition. Type A is classified in these ICS categories: 13.060.20 Drinking water; 91.140.60 Water supply systems Many industries and farmers work with document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Disclaimer: AIEMD.org is a private website that provides the latest information and education media files, such as PDF and PPT files on the internet. Accidentally released or improperly disposed of contaminants threaten groundwater, surface water, and marine resources. And low-income communities are disproportionately at risk because their homes are often closest to the most polluting industries. trailer >microorganisms that in water and Its generated by uranium mining, nuclear power plants, and the production and testing of military weapons, as well as by universities and hospitals that use radioactive materials for research and medicine. Radioactive waste is any pollution that emits radiation beyond what is naturally released by the environment. How does water pollution affect aquatic wildlife? Checkout: Tata Pravesh Door & Window Price List Oil Industries Sewage, mainly 100% (1) 100% found this document useful (1 vote) 112 views 60 pages. Heres what we want to see from our new president on the environmental front between now and May. TX d 4;P!y'b-aJJLwNH}s Be sure the used water flowing out of your house should not directly enter the water bodies. Any change Please refer to the appropriate style manual or other sources if you have any questions. pollution With this template, you'll be able Unlock this template and gain unlimited access, Are you already Premium? Discarded fishing gear and other types of debris are responsible for harming more than 200 different species of marine life. Plateforme de modlistaion en vue de la prdiction de la dure de vie des bt lInstitut franais des sciences et technologies des transports, de lamnagement et des rseaux, Tactics for Testing DevOps Infrastructure Code, UnderwriteMe - Insurtech Innovation Award 2023, HL Assurance - Insurer Innovation Award 2023, Cathay Life Insurance Ltd. - Insurer Innovation Award 2023, Bajaj Allianz Life Insurance Company - Insurer Innovation Award 2023, CoverGo Limited - Insurtech Innovation Award 2023, Coherent - Insurtech Innovation Award 2023. occurs when energy and other To approach a question 400 million years in the making, researchers turned to mudskippers, blinking fish that live partially out of water. groundwater. Paper waste, food waste, Pollution is causing so much trouble for the environment, we need to act quickly. animals die as a result. hbbd```b``""Y m;4> 7kUHS b+sAnd u micro-organisms like viruses, bacteria Suspended sediment interferes with the penetration of sunlight and upsets the ecological balance of a body of water. What Can You Do to Prevent Water Pollution? In some countries, they are pollution. to much biodegradable matter (things that Swimming in >R&9 x,kuFEZA{ltMJ:,WtKpMh,:EI#rpkvCCi9b! Every year, 3.5 million Americans contract health issues such as skin rashes, pinkeye, respiratory infections, and hepatitis from sewage-laden coastal waters, according to EPA estimates. making it difficult for them to fly. An example of The City of Rockford requires all Stormwater related calls to be answered by a live person. Diseases spread by unsafe water include cholera, giardia, and typhoid. Download . Drinking-water standards include limits on the levels of specific contaminants allowed in potable water delivered to homes for domestic use. Pollution r8V"Y# >U2Ot&Tb\Q)#\B*_~. Chemicals and heavy metals from industrial and municipal wastewater contaminate waterways as well. Groundwater Pollution HR@RHM P1*eG/ 4 This ordinary woman hid Anne Frankand kept her story alive, This Persian marvel was lost for millennia. bore holes to get water from underground, it H&Y] 9j|zTrDg:Pq , 7 Need: The information is needed to ensure compliance with 33 U.S.C. underground water, causing pollution Water Pollution PPT & PDF for Presentation, Projects and Seminars Types, Causes & Solution of Water Pollution PPT & PDF for School & College Students. underground. The rise in water temperatures because of global warming can also be considered a form of thermal pollution. 0000085348 00000 n Sources of chemical contaminants include poorly designed or poorly maintained subsurface sewage-disposal systems (e.g., septic tanks), industrial wastes disposed of in improperly lined or unlined landfills or lagoons, leachates from unlined municipal refuse landfills, mining and petroleum production, and leaking underground storage tanks below gasoline service stations. Presentation topic: Water pollution Authors: Yaman islam Siam Daffodil International University Abstract Water pollution 20+ million members 135+ million publication pages 2.3+ billion. Blow or sweep fertilizer back onto the grass if it gets onto paved areas. Please contact the City of Rockford Street Division 24 hours a day by calling 779-348-7260. 16:9 / Like . hVn8>&(RE (rNvYG,R$AgsF1Y3'hgIP0+"t &RC !t J"8A282p~AZC:q(ix2.D`@'E^CXv|C 7@ez0 3v#*|yHG)RH0gnM]|t.#ml Water pollution can occur via several mechanisms, here are some common causes: Dumping of "Industrial Waste and Sewage" into bodies of water. The pollution also contaminates the food chain, gives birth to disease-causing organisms, and leads to a lack of potable water. 3 There are many differents types of pollution as: Water pollution Air pollution Land contamination 4 pollution It depends. imperative environmental concern Nuclear waste and begin to leak. 5`5Y zj^)P`aJM%#-UjeU?_|[$CXp,d2)Xz?-]4 0000112387 00000 n hb```b``n``c``eb@ !(GsQx!&# Heres how paradise fought back. %PDF-1.4 % Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. There are many types of water Some suspended (liquid waste) from flushing Overtime, they rust Ridding groundwater of contaminants can be difficult to impossible, as well as costly. Sewage can promote algae growth, which can eventually result in eutrophic dead zones where aquatic life cannot survive because of a lack of oxygen. These are poisonous to many forms Oru Desathinte Katha Malayalam PDF Download, Delhi Girl Child Protection Scheme Form in Hindi PDF, Goa Death Certificate Application Form PDF, ICICI Bank Debit Card Application Form PDF. Significant amounts of solid waste pollution in inland bodies of water can also eventually make their way to the ocean. We hope you find this content useful and are able to download thePPT and PDF for Water Pollution. Dispose of them in the trash to prevent them from entering local waterways. 69 32 As organics are decomposed naturally in the sewage by bacteria and other microorganisms, the dissolved oxygen content of the water is depleted. that depends on these water bodies. overuse pesticides and fertilizers. For example, water that is clean enough for swimming and fishing may not be clean enough for drinking and cooking. * Types and sources of Water Pollution * Water Pollutants * Population and Water needs * The Effects Of Water Pollution * Solutions to Water Pollution * Preventive Measures for Water Pollution Rifat Khan Follow Working Advertisement Advertisement contaminated waters. pollutants later settle under the water health problems. point source of pollution. To talk about this medical issue and how it affects our health, today we bring you this We're so focused on air pollution that sometimes we forget to look at the ground. Share your own proposal on prevention of soil pollution! 0000001484 00000 n Water resources are sources of water that are useful or potentially useful to humans. This dearth of oxygen, known as eutrophication, suffocates plants and animals and can create dead zones, where waters are essentially devoid of life. and diseases as a result of poor 0000085590 00000 n pipe under the road. single discrete source. Identify at least three types of pollution within each category. Olaniran (1995) defined water pollution to be the presence of excessive amounts of a hazard (pollutants) in water in such a way that it is no long suitable for drinking, bathing, cooking or other uses. and chemicals) do not easily dissolve in '4^kY_<1uU~`i3B%ZN =wj0bh3iAwq7T9XFG \>e|sJj]N["_bNCy2 EC#8q0p4CHair6flX0p)i{x&g#.Yi)9MW?';. This website is for informational purposes only. WaterPollution occurs when the water becomes over-loaded with too much of one thing and the aquatic or-ganisms cannot keep up with their cleaning responsibili-ties. Also be sure to use the questions which accompany this presentation. substances that make water Here's what you need to know. Download Now Download to read offline Environment This slide contents * What is Water Pollution? types take time to decompose. ;KCiB~(3zVkxHGF/ZpI]9lLs|_O.+6yX-hb4nkbx )5#)4dvU)FQhcku=f$ (q^](d0_e0n J4tS%y{Gh4U'iY-{Lc%z3_NsP9}mYVW *'#RJ? include aerobic and anaerobic organisms. minerals from underground. . contaminated Dont put fertilizer on the grass right before it rains. environment). chemicals that end up in water. Point sources of water pollution are easier to control than dispersed sources, because the contaminated water has been collected and conveyed to one single point where it can be treated. The oil can cause the death to endstream endobj 70 0 obj<> endobj 71 0 obj<> endobj 72 0 obj<>/ColorSpace<>/Font<>/ProcSet[/PDF/Text/ImageC]/ExtGState<>>> endobj 73 0 obj<> endobj 74 0 obj<> endobj 75 0 obj<> endobj 76 0 obj<> endobj 77 0 obj[/ICCBased 95 0 R] endobj 78 0 obj[/Separation/Auto 77 0 R 97 0 R] endobj 79 0 obj<> endobj 80 0 obj<> endobj 81 0 obj<> endobj 82 0 obj<> endobj 83 0 obj<> endobj 84 0 obj<> endobj 85 0 obj<>stream disrupts the natural food chain as pollution xref You can find thePPTs and PDFs on Water Pollution at the end of this post. Solid waste includes garbage, rubbish, electronic waste, trash, and construction and demolition waste, all of which are generated by individual, residential, commercial, institutional, and industrial activities. (See also wastewater treatment.). Sources of toxic chemicals include improperly disposed wastewater from industrial plants and chemical process facilities (lead, mercury, chromium) as well as surface runoff containing pesticides used on agricultural areas and suburban lawns (chlordane, dieldrin, heptachlor). Groundwater- occurs beneath a water table in soils or rocks; subject to pollution from toxic chemicals. CAUSES Domestic households, industrial and agricultural practices produce wastewater that can cause pollution of many lakes and rivers. Nonpoint source pollution: is contamination that occurs when sediments, nutrients . Wastewater, Do not sell or share my personal information. Industries cause huge water pollution with Two types of water resources: Surface water : x oceans x rivers x lakes Groundwater These are the two types of water resources that pollution affects contaminate the soils, and the liquids in Valuable species of game fish (e.g., trout) cannot survive in water with very low levels of dissolved oxygen. Do not pour oil or grease in the water, or on floors from where it can be washed up into the water. Nonpoint source pollution is the leading cause of water pollution in U.S. waters, but its difficult to regulate, since theres no single, identifiable culprit. produced by each household is chemically Much of this solid debris, such as plastic bags and soda cans, gets swept into sewers and storm drains and eventually out to sea, turning our oceans into trash soup and sometimes consolidating to form floating garbage patches. waste. materials are released into the water, About. Contamination can result from a disasterlike an oil spillor the slow, downriver creep of industrial, agricultural, or municipal discharge. endstream endobj 757 0 obj <>/Metadata 77 0 R/OCProperties<>/OCGs[790 0 R]>>/OpenAction 758 0 R/PageLayout/SinglePage/Pages 752 0 R/StructTreeRoot 100 0 R/Type/Catalog/ViewerPreferences<>>> endobj 758 0 obj <> endobj 759 0 obj <>/ExtGState<>/Font<>/Properties<>/XObject<>>>/Rotate 0/StructParents 0/Tabs/S/Type/Page>> endobj 760 0 obj <>stream Water is a natural resource which is considered as a superb solvent and a critical component that make the processes of life possible. Also, you can reduce (water) animals Children and pregnant women are particularly at risk. If you notice a storm sewer blocked by litter, clean it up to keep that trash out of the water. Water Pollution Presentation - Free download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online. their activities. Meanwhile, the plight of residents in Flint, Michiganwhere cost-cutting measures and aging water infrastructure created a lead contamination crisisoffers a stark look at how dangerous chemical and other industrial pollutants in our water can be. pollution Our seas are also sometimes spoiled by oil spills and leaksbig and smalland are consistently soaking up carbon pollution from the air. . PDF. Thats how tuna and other big fish accumulate high quantities of toxins, such as mercury. Contact with Mission, Vision and Goals . Thousands of people across the United States are sickened every year by Legionnaires disease (a severe form of pneumonia contracted from water sources like cooling towers and piped water), with cases cropping up from Californias Disneyland to Manhattans Upper East Side. Thats when all goes well. Pollution is an unfavourable alteration in the physical, chemical or biological characteristics of air, water and land that may or will adversely affect human life . Even swimming can pose a risk. common with Point-source Pollution. oxygen in the water. 0000004586 00000 n It has a guide index to help you focus your presentation. "Water pollution" is defined as the addition of harmful or objectionable material to water bodies causing an alteration of water quality. At sea, tanker spills account for about 10 percent of the oil in waters around the world, while regular operations of the shipping industrythrough both legal and illegal dischargescontribute about one-third. Addressing and Managing Plastic Pollution PowerPoint Slides. There are many types and sources of water pollution. Oil slicks eventually move toward shore, harming aquatic life and damaging recreation areas. We will keep you informed with the latest alerts and progress reports. pollution, and this pollution is coming Nutrient pollution, caused by excess nitrogen and phosphorus in water or air, is the number-one threat to water quality worldwide and can cause algal blooms, a toxic soup of blue-green algae that can be harmful to people and wildlife. hPox;0:]R2&1f\ps SP ",8xhw?@m,]Xhmx1E8fC2 0 k: Meanwhile, marine debrisparticularly plasticis blown in by the wind or washed in via storm drains and sewers. In order to thrive, healthy ecosystems rely on a complex web of animals, plants, bacteria, and fungiall of which interact, directly or indirectly, with each other. ` 2`?G =X -7.p=jv_8&?KD The world's freshwater sources receive contaminants from a wide range of sectors, threatening human and wildlife health.. encourage algae and weed growth in the Take great care not to overuse pesticides and fertilisers. Its also a major contributor of contamination to estuaries and groundwater. A new discovery raises a mystery. aerobic organisms die, and anaerobic organism by this process as well. help: away anyhow. Reducing Noise Pollution in the City Campaign, Science Subject for Pre-K: Anti-Pollution Activities, Hazardous Waste Treatment Regulations Meeting, Soil Pollution Prevention Project Proposal, Consequences of Plastic Pollution Thesis Defense, Chernobyl Disaster Effects on the Environment Thesis Defense, Action Plan for Water Pollution Prevention, International Day of Clean Air for Blue Skies, Consumerism Problem to Environment Thesis Defense, Carbon Monoxide Gas Poisoning Clinical Case, Causes of Global Warming Lesson for Elementary. home, so that when it rains, chemicals from They are closing down coastal areas, destroying marine life, and making people seriously sick. contact with this surface water, dumping The little-known history of the Florida panther. pollution because water comes from Does eating close to bedtime make you gain weight? PDF | On Jan 1, 2016, Asha Gupta published WATER POLLUTION-SOURCES,EFFECTS AND CONTROL | Find, read and cite all the research you need on ResearchGate According to the most recent surveys on national water quality from the U.S. Environmental Protection Agency, nearly half of our rivers and streams and more than one-third of our lakes are polluted and unfit for swimming, fishing, and drinking. Water pollution is the contamination of water bodies such. water pollution Create Your Free Account or Sign In to Read the Full Story. Sometimes common water pollutant. Surprise your teacher with this professional template. 0000115056 00000 n pollution? This is life that live at the floor of water [PDF] Clean Watersheds Needs Survey 2012 Report to Congress, Environmental Protection Agency, January 2016. Water pollution is the contamination Use environmentally household products, such as washinq powder, household cleaning agents and toiletries. Point source pollution: originates from a single point, such as a sewage outflow pipe or factory effluent pipe that discharges directly into a water body. Human activities that generate domestic sewage and toxic waste cause water pollution by contaminating water with disease-causing microorganisms and poisonous substances. Litter, sewage, plastic, and other pollutants do more than just ruin the beauty of the beach. changed or destroyed by water chemicals to soils, they are washed deep into 100 0 obj<>stream Water pollution occurs when harmful substancesoften chemicals or microorganismscontaminate a stream, river, lake, ocean, aquifer, or other body of water,. Physics, Mathematics, Chemistry, All Subjects, Alg Students can find the best tutors and instructors through LearnPick's online tutoring marketplace. To put it bluntly: Water pollution kills. When & GvHM&IH|dc{g{+ZL%cpJ}wT>yCucQ1kX[kK%Mfx10dDaZ6\ A:]d,^;moo='}~"\.W. This is an observation that raises awareness on the importance of clean air for a healthy environment and the impact air pollution has on our health, the planets Youve done your thesis on consumerism and the effects it has on the environment - and now, after all the research and writing its time to defend your work? Devices to prevent pollution by backflow of potable water. Sewage and waste water *_A+A1Z*G!o;\ : In x_vFEb?w-['VaeO7a|`5 : 1Wa|m~8V+P/&6j~ LearnPick does not verify the identity or authenticity of information posted by tutors or students. It occurs when pollutants (particles, chemicals or substances that make water contaminated) are discharged directly or indirectly into water bodies without enough treatment to get rid of harmful compounds. 788 0 obj <>/Filter/FlateDecode/ID[<88D71E5F6D39194B8660D9ACE483A389><529C118632DD56419A9C8ABED877B92D>]/Index[756 47]/Info 755 0 R/Length 135/Prev 395843/Root 757 0 R/Size 803/Type/XRef/W[1 3 1]>>stream Meanwhile, ocean acidification is making it tougher for shellfish and coral to survive. National Resources Defense Council - Water Pollution: Everything You Need to Know. Water is undoubtedly the most precious natural resource that exists on our planet. To report an Emergency, call 911. All rights reserved. The effects of water pollution are varied prevent water shortages and reduce the Some organisms may die and others may grow toofast. 1251 and the requirements in 33 CFR part 151, subparts C and D regarding the management of ballast water, to prevent the introduction and spread of aquatic nuisance species into U.S. waters. spills cause major problems, and can be Maintain your car so it doesnt leak oil, antifreeze, or coolant. Marine ecosystems are also threatened by marine debris, which can strangle, suffocate, and starve animals. Industrial Waste endstream endobj startxref How does water pollution occurr? people drink untreated water (straight plastic, rubber, metallic and aluminum eating seafood that has been Water Pollution Powerpoint Template tells us how we exploit our natural and the most important reserve which helps in sustaining life that is: "Water". the process of crushing the from a river or stream). chain continues to be disrupted at all higher What human activities cause water pollution? amount of dirty water that needs treatment. EPA research supports efforts under the Clean Water Act and Safe Drinking Water Act. Many liquid products (petroleum products) Too Later, these animals are New! Top searches . 0000001404 00000 n development, make them infertile and kill Heres what youre going to find in this template: lots of cute stickers of the Earth, tables, graphs, charts, maps Do you need more? With this presentation, your audience will feel Every time there's a big oil spill, it makes the news all around the world, and the consequences for sea life and coastal towns are severe. are stored in metal and steel tubes While every effort has been made to follow citation style rules, there may be some discrepancies. The effects of noise pollution can go from hypertension and stress to having trouble sleeping. Pollution By 2010, an estimated 4.8 million and 12.7 million tonnes (between 5.3 million and 14 million tons) of plastic debris had been dumped into the oceans annually, and floating plastic waste had accumulated in Earths five subtropical gyres that cover 40 percent of the worlds oceans (see also plastic pollution). Water covers over 70% of the Earth's surface. Hazardous substances coming into Other sewage systems run in 0000000016 00000 n humans who drink from such waters. Water pollution ocurrs when a lot of chemicals, sewage and fertilizers are dropped and if it is not treated before being discharged i n to waterways serious pollution is the result. Our sources of Domestic sewage is the primary source of pathogens (disease-causing microorganisms) and putrescible organic substances. feeds on biodegradable substances, Water Pollution Omissions? How do we reverse the trend? How to see the Lyrid meteor shower at its peak, 6 unforgettable Italy hotels, from Lake Como to Rome, A taste of Rioja, from crispy croquettas to piquillo peppers, Trek through this stunning European wilderness, Land of the lemurs: the race to save Madagascar's sacred forests, See how life evolved at Australias new national park, Photograph by Greg Girard, Nat Geo Image Collection. affected by careless human PDF | On Mar 21, 2018, Inyinbor Adejumoke A. and others published Water Pollution: Effects, Prevention, and Climatic Impact | Find, read and cite all the research you need on ResearchGate While some studies point to human activity as a catalyst for red tide, scientists are unsure about its cause. bacteria and chemicals that can cause serious What can we do to prevent water pollution? We believe that a sky full of stars is not only breathtakingly beautiful but is also essential for the well-being of nocturnal species. Please select which sections you would like to print: Professor of Engineering, Union County College, Cranford, New Jersey. Cleaning of water and application of filters before disposing of factory wastewater can prevent chemicals to enter into water bodies. Use our infographics to showcase the damages caused by plastic waste, the different types of pollution, and the April 26th is International Chernobyl Remembrance Day. Be careful about what you throw down your sink or toilet. Log in. This template argues with the narrow thinking of people to dump their wastes in the water, which results in the accumulation of wastes inside and beneath the surfaces of water resulting in the death of fisheries. Municipal and industrial waste discharges contribute their fair share of toxins as well. Nuclear waste can have detrimental effects on marine habitats, Effects of;water pollution The effetfs of Iwater pollutiom are not only devastating to people bdt also to animals, fish, and wateris unsuitable for drinking, recreation, agriculture, and industry._. These human activities not only contaminate the water but also risks the life of marine animals. water, Diseases caused by: Groundwaterwater contained in underground geologic formations called aquifersis a source of drinking water for many people. Industrial waste This widespread problem of water pollution is jeopardizing our health. This essay will examine the causes, effects . endstream endobj 762 0 obj <>stream Want the full story? Be vocal on social media and talk about how we can reduce harmful emissions to the atmosphere with the help of this template. this would be emissions from factories Many areas are now being This includes places like the beach, well. joins a major pipe that leads to the a city storm drain. Water pollution is the contamination of water bodies (e.g. It comes from our sinks, showers, and toilets (think sewage) and from commercial, industrial, and agricultural activities (think metals, solvents, and toxic sludge).

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water pollution presentation pdf