Water poster
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The document discusses the issues of water pollution from various sources such as industry, farming, and homes. It notes how pollution can lead to deterioration of water quality, contamination of groundwater, diseases, and death of living beings. It emphasizes preserving water resources by not polluting or overusing them, especially underground water sources like aquifers. Aquifers are important because they store and supply fresh water while filtering out pollutants, making the water pure for drinking. However, overuse and pollution threaten these critical water sources.
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This document discusses water quality and its importance. It notes that over 1 billion people do not have access to clean drinking water. Water quality describes how pure water is and can include things like salts, minerals, organisms, and organic material. Testing of drinking water checks for factors like taste, odor, turbidity, toxicity, bacteria, hardness, pH, dissolved oxygen, and solids. Maintaining good water quality is important for public health as contaminated water can spread diseases and cause epidemics.
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This presentation discusses various types and causes of water pollution. It notes that over 2/3 of the Earth's surface is covered by water, but human activities are reducing water quality through pollution. Water pollution can come from point sources like factories or non-point sources from many diffuse activities. The types of water pollution include surface, ground, microbiological, and oxygen depletion pollution. The causes discussed include sewage, industrial waste, radioactive waste, underground storage leaks, oil pollution, chemical pollution, marine dumping, and air pollution which causes acid rain. The effects of water pollution are toxic water, thermal heating, impacts on the environment and humans.
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The document discusses various topics related to water pollution including its causes, forms, and classification. It notes that pollution occurs when silt and other materials enter bodies of water, reducing oxygen levels and harming aquatic life. The major sources of water pollution are classified as municipal, industrial, and agricultural. The hydrosphere, which includes oceans, seas, lakes and rivers, covers 70% of the Earth's surface and is impacted by pollution.
Availablity Of Water and Sources of fresh water
There are several sources of fresh water on Earth including surface water found in rivers and lakes, underground water that flows below rivers and within aquifers, groundwater stored in soil and rocks, frozen water in glaciers and icebergs, and desalinated water from processes that remove salt from sea water. Surface water comes from precipitation and is lost through discharge into oceans or evaporation. Underground river flows can exceed visible flows, exchanging with groundwater. Groundwater is found below the water table within aquifers. Desalination is an artificial process that converts sea water to fresh water but is currently expensive.
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This document discusses the importance of water and drinking filtered water. It notes that water is essential for life, covering most of the Earth's surface and making up over 60% of the human body. However, drinking water is often contaminated with dangerous chemicals, bacteria, and other elements that can pose health risks like cancer and Parkinson's disease. While water treatment facilities aim to provide safer water, contaminants still enter the water system. The conclusion recommends drinking filtered water, as municipal water alone cannot be completely trusted to provide clean drinking water due to limitations of water treatment and contaminants entering water after treatment.
Eutrophication
Eutrophication is the process by which a body of water becomes enriched with nutrients, typically compounds of nitrogen and phosphorus, which stimulates the growth of aquatic plant life. This initial growth is beneficial for various organisms but can eventually lead to oxygen depletion and changes in the ecosystem. The document outlines how eutrophication occurs naturally over long time periods but can be accelerated, or caused culturally, by human activities that increase the input of nutrients into bodies of water from sources like fertilizer, livestock waste, and sewage. Prevention efforts aim to reduce nutrient levels and monitor at-risk areas.
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This document discusses various aspects of water resources including:
1) Water is essential for life but only 3% of Earth's water is freshwater, with the majority being saltwater in oceans.
2) Freshwater sources include lakes, rivers, streams, groundwater and ice/snow, with only 1% of total water accessible for human and agricultural use.
3) The water cycle describes the continuous movement of water above, on, and below the Earth's surface through different states of matter and is driven by the sun's energy.
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The document discusses water use and distribution around the world. It notes that while water covers most of the Earth's surface, only a small percentage is easily accessible. It then outlines major uses of fresh water, with agriculture accounting for 70% globally. Specific water use statistics are provided for the United States, China, and other places. Challenges around water supply such as depletion of groundwater and the high costs of desalination are also summarized.
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There are several sources of fresh water on Earth including surface water found in rivers and lakes, underground water that flows below rivers and within aquifers, groundwater stored in soil and rocks, frozen water in glaciers and icebergs, and desalinated water from processes that remove salt from sea water. Surface water comes from precipitation and is lost through discharge into oceans or evaporation. Underground river flows can exceed visible flows, exchanging with groundwater. Groundwater is found below the water table within aquifers. Desalination is an artificial process that converts sea water to fresh water but is currently expensive.
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This document discusses the importance of water and drinking filtered water. It notes that water is essential for life, covering most of the Earth's surface and making up over 60% of the human body. However, drinking water is often contaminated with dangerous chemicals, bacteria, and other elements that can pose health risks like cancer and Parkinson's disease. While water treatment facilities aim to provide safer water, contaminants still enter the water system. The conclusion recommends drinking filtered water, as municipal water alone cannot be completely trusted to provide clean drinking water due to limitations of water treatment and contaminants entering water after treatment.
Eutrophication
Eutrophication is the process by which a body of water becomes enriched with nutrients, typically compounds of nitrogen and phosphorus, which stimulates the growth of aquatic plant life. This initial growth is beneficial for various organisms but can eventually lead to oxygen depletion and changes in the ecosystem. The document outlines how eutrophication occurs naturally over long time periods but can be accelerated, or caused culturally, by human activities that increase the input of nutrients into bodies of water from sources like fertilizer, livestock waste, and sewage. Prevention efforts aim to reduce nutrient levels and monitor at-risk areas.
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This document discusses various aspects of water resources including:
1) Water is essential for life but only 3% of Earth's water is freshwater, with the majority being saltwater in oceans.
2) Freshwater sources include lakes, rivers, streams, groundwater and ice/snow, with only 1% of total water accessible for human and agricultural use.
3) The water cycle describes the continuous movement of water above, on, and below the Earth's surface through different states of matter and is driven by the sun's energy.
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The document discusses water use and distribution around the world. It notes that while water covers most of the Earth's surface, only a small percentage is easily accessible. It then outlines major uses of fresh water, with agriculture accounting for 70% globally. Specific water use statistics are provided for the United States, China, and other places. Challenges around water supply such as depletion of groundwater and the high costs of desalination are also summarized.
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Water pollution occurs when contaminants are introduced into bodies of water, usually through human activities. The three main types of water pollution are surface water pollution, marine pollution, and groundwater pollution. Some key causes of water pollution include industrial and urban waste being disposed into water systems, agricultural runoff, and inadequate wastewater treatment. The effects of water pollution include threats to public health, reduced biodiversity and natural resources, and impacts on industries like agriculture and tourism that depend on clean water. Measures to control pollution include enforcement of regulations and building public awareness of water pollution issues.
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This document discusses water pollution as a major global problem, providing statistics on water pollution deaths in India and China. It notes that in addition to problems in developing countries, developed countries also struggle with water pollution. The document categorizes sources of surface water pollution into point sources like pipes and ditches, and non-point sources like agricultural runoff. It discusses that groundwater pollution is more complex given interactions between surface and groundwater, and defines groundwater contamination. Finally, it states that decisions on pollution treatment and control must consider technical factors to prevent further environmental harm.
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Surface water, frozen water, and groundwater are the main sources of fresh water. Surface water comes from rivers, lakes, and wetlands and is replenished by precipitation and lost through discharge and evaporation. Frozen water is stored in glaciers and ice caps, though some proposals have explored using icebergs as a water source. Groundwater is stored underground. People use water for household needs like washing, drinking, and bathing, as well as agriculture, industry, and recreation. Conserving water helps protect this resource and some tips include only running dishwashers and washing machines with full loads, turning off taps when brushing teeth, checking for leaks, taking shorter showers, and watering lawns in
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1. Water is a vital natural resource that forms the basis of all life on Earth. The majority of water on Earth is salt water, with only 3% being fresh water.
2. The main sources of fresh water are surface water found in rivers, lakes, and wetlands, and groundwater found beneath the Earth's surface. Water is used for irrigation, domestic, industrial, and other purposes.
3. Water pollution occurs when harmful substances contaminate water bodies, threatening health and ecosystems. The different types of water pollution include surface water, groundwater, thermal, and eutrophication. Water pollution can be controlled through education, laws, and other solutions.
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Water is an essential resource for life but only a tiny fraction of Earth's water is available as freshwater. As populations and demand grow, water scarcity will be a major factor in many countries' economic development. Water pollution from industrial, agricultural and domestic waste threatens available freshwater supplies. Pollution reduces water quality and can have harmful effects from toxic contaminants accumulating up the food chain to widespread impacts like eutrophication which starves aquatic ecosystems of oxygen. Improving sanitation, wastewater treatment, and adopting sustainable agricultural practices can help control water pollution.
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Water pollution occurs when contaminants are introduced into bodies of water, usually through human activities. The three main types of water pollution are surface water pollution, marine pollution, and groundwater pollution. Some key causes of water pollution include industrial and urban waste being disposed into water systems, agricultural runoff, and inadequate wastewater treatment. The effects of water pollution include threats to public health, reduced biodiversity and natural resources, and impacts on industries like agriculture and tourism that depend on clean water. Measures to control pollution include enforcement of regulations and building public awareness of water pollution issues.
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Sources of water
Surface water, frozen water, and groundwater are the main sources of fresh water. Surface water comes from rivers, lakes, and wetlands and is replenished by precipitation and lost through discharge and evaporation. Frozen water is stored in glaciers and ice caps, though some proposals have explored using icebergs as a water source. Groundwater is stored underground. People use water for household needs like washing, drinking, and bathing, as well as agriculture, industry, and recreation. Conserving water helps protect this resource and some tips include only running dishwashers and washing machines with full loads, turning off taps when brushing teeth, checking for leaks, taking shorter showers, and watering lawns in
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The document discusses different types of water pollution including point sources like pipes and non-point sources like agricultural runoff. It also describes various sources of water pollution such as infectious agents, oxygen-demanding wastes, inorganic chemicals, organic chemicals, sediment, and heat. Specific examples are given for each along with their major human sources and effects on aquatic life. Groundwater pollution sources including industrial, domestic, and agricultural waste are outlined. Finally, sources of ocean pollution like domestic and industrial waste, oil spills, and sludge disposal are covered.
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Uses of fresh water
Water resources include sources of fresh water that can be used by humans. Nearly all water on Earth is salt water, while only 3% is fresh water. The main sources of fresh water are surface water, groundwater, desalination, and frozen water. Water is used for agricultural, industrial, household, recreational, and environmental purposes. It is a critical resource but also cycles through the environment in the water cycle.
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Surface water sources, Sub-Surface water sources,
Sources of water for a community, Physical indicators
Chemical indicators, Biological indicators
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Drew Day is an environmental toxicologist who works for Yihua, an environmental networking platform. He has extensive experience researching and working in China. In January, Mr. Day will present on eutrophication, an issue he studied at Dianchi Lake in Kunming. Eutrophication is one of the most common environmental problems affecting China's waterways. His presentation will cover the causes, effects, and potential solutions to eutrophication as well as the current situation in China.
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This document discusses the importance of water as a precious resource and the need for its conservation. It notes that while water covers 71% of the Earth's surface, only 3% is freshwater and available for human use. Growing populations, industries, agriculture, and deforestation are depleting groundwater levels at an alarming rate. Various methods of water conservation and management like rainwater harvesting, reviving traditional structures like bawris, and drip irrigation can help replenish groundwater and ensure a sustainable supply of freshwater. Everyone must play their part through developing water-wise habits to avoid wastage and ensure this vital resource lasts for future generations.
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1. Water is a vital natural resource that forms the basis of all life on Earth. The majority of water on Earth is salt water, with only 3% being fresh water.
2. The main sources of fresh water are surface water found in rivers, lakes, and wetlands, and groundwater found beneath the Earth's surface. Water is used for irrigation, domestic, industrial, and other purposes.
3. Water pollution occurs when harmful substances contaminate water bodies, threatening health and ecosystems. The different types of water pollution include surface water, groundwater, thermal, and eutrophication. Water pollution can be controlled through education, laws, and other solutions.
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Here are the answers to the questions:
1. Pollutants are physical, chemical, or biological substances that are present in amounts harmful to living organisms. The major classifications of pollutants are:
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- Chemical (heavy metals, pesticides, organic compounds)
- Biological (pathogens, bacteria, viruses)
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- Agricultural runoff containing fertilizers and pesticides
- Sewage from municipal drains
- Oil spills
- Thermal pollution from power plants
- Solid waste disposal
- Acid mine drainage
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This document discusses various topics related to water pollution including water availability, scarcity, sources of pollution, effects of pollution, and control measures. Only 3% of the Earth's water is freshwater, with most locked in ice caps and glaciers. As freshwater becomes more scarce, access to water will determine economic growth. Pollution comes from various point sources like industrial discharge and non-point sources like agricultural runoff. Effects include waterborne diseases, eutrophication, and biomagnification up the food chain. Control measures center around effluent treatment, reuse, and sustainable agricultural practices.
Water consumption &purification
- Most of Earth's water is saltwater found in oceans, while only 3% is freshwater. Of this freshwater, over two-thirds is frozen in glaciers and ice sheets.
- Water is continually cycled through the Earth in the hydrological cycle between oceans, atmosphere, and land via evaporation, condensation, precipitation, and infiltration. This cycle provides freshwater for human and ecosystem uses.
- Groundwater makes up about 96% of unfrozen freshwater and provides 25-40% of the world's drinking water by flowing through aquifers. However, groundwater quality can be impacted by natural and human-caused contaminants.
Water Resources and Water PollutionLife on planet Earth would be.docx
Water Resources and Water Pollution
Life on planet Earth would be impossible without water. All life forms, from unicellular bacteria to multicellular plants and animals, contain water. Humans are composed of approximately 60 percent water by body weight and we depend on water, not only for our survival, but for our convenience: We drink it, cook with it, wash in it, travel on it, and use an enormous amount of it for agriculture, manufacturing, mining, energy, production, and waste disposal. Though 71% of the Earth’s surface is covered in water, only 0.024% of the overall water supply is available as liquid freshwater that is easily accessible. It is one of the most poorly managed resources, easily wasted and often polluted. The available freshwater is collected, purified and distributed in the hydrologic cycle, but this cycle is easily interrupted by overloading with pollution, reducing wetlands, and reducing forests.
We get water from groundwater and surface water. Groundwateris water that seeps into the ground between spaces in soil and gravel until it reaches impenetrable bedrock. One of the most important sources of freshwater. The top of the groundwater zone that moves up and down based on weather is the water table. The water table drops in level when humans remove water at a faster rate than it is replenished. Surface wateris freshwater from precipitation and melted snow that flows into lakes, wetlands, rivers, and eventually into the oceans.
Water shortages are caused by many factors including dry climate and drought. In some places, the human population uses water at a faster rate than the water is replenished. 30% of the Earth’s land mass now experiences severe or extreme drought and 1 billion people lacked regular access to clean water for drinking, cooking, and washing.
Water Supplies
Aquifers, underground water supplies, are renewable as long as the groundwater doesn’t become contaminated and withdrawn too quickly. Most aquifers around the world, and in the largest food producing countries, are being used up quicker than their rate of replenishment. Dam and reservoir systems are used to capture and hold runoff water. The collected water can be released at need to control flooding, supply water for farming and cities, and to produce electricity. The use of dams and reservoirs has increased the amount of reliable surface runoff by one-third. Unfortunately, these systems also displace people, flood productive lands, and disrupt the ecological services rivers provide.
Tunnels, aqueducts, and underground pipes transfer runoff from dams and reservoirs to water-poor areas. These transfer systems can be wasteful and environmentally harmful by shrinking the water source as more is transferred to water-poor areas. Another option for freshwater is desalinization which involves removing salts from ocean or brackish water. Usually desalinization costs a lot because of the energy required; it also kills many marine organisms and creates salty.
Aquatic ecosystem and water pollution
Aquatic ecosystems can be freshwater like lakes, rivers, and wetlands, or marine water like oceans. They contain a variety of organisms adapted to different zones based on factors like sunlight, temperature, and oxygen levels. Aquatic ecosystems are important for biodiversity, breeding grounds, and being part of the water cycle, but are threatened by pollution, nutrient runoff, and other human impacts that can cause eutrophication and loss of species. Proper management of fertilizers, waste, and industrial discharges is needed to protect these fragile environments.
(Soft copy) environmental studies water pollution
The document summarizes a study of the ecology of the polluted Najafgarh Drain site in Delhi, India. Field work was conducted at the site on October 10, 2015 involving observation-based recording. Various plants, insects and birds that tolerate the polluted conditions were observed near the drain, whose black colored water is polluted from sewage, waste disposal and construction runoff. A food web was compared between the polluted drain site versus fresh water ecosystems. With increased pollution, the drain's food chain has become simpler as only pollution-resistant species can survive. Urgent action is needed to reduce waste disposal and improve conditions for communities near the heavily polluted drain.
Water pollution
This document provides an overview of water pollution. It discusses how water availability is limited yet water is essential for life. Both surface water and groundwater can become polluted from a variety of point and non-point sources, including industrial and agricultural waste, sewage, and chemical dumping. Various types of pollutants are described. Water pollution has serious health and environmental effects. Preventing pollution and implementing treatment systems can help control this important problem. A case study analyzes pollution in an Indian river.
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Gabija and goda water
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Water around us good to know
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Water around us 2
The students meet a river who explains how it carries water and nutrients around the earth and plays an important role in the water cycle. The river adds that it provides habitat and food for many organisms, as many plants and trees grow along its banks and animals make their homes on its banks, using it for food and drink. The students learn that rivers teach about aquatic ecosystems, as they saw birds, plants, insects, fish and their interactions during a visit to the riverbank. The river emphasizes the importance of water and not taking care of it.
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Water poster
- 1. Water pollution is the introduction of foreign particles to the natural aquatic environment, directly or indirectly, being potentially harmful to fauna, flora and the surrounding human populations or that use this water. •From Industry: high organic, chemical and toxic loads, extremely poisonous. •From farming: chemical substances of animal feed (such as hormones), blood and guts from slaughterhouses and detergents used to wash pigsties, stables and aviaries. •From our homes: organic matter, nutrients and micro-organisms carrying diseases. • Deterioration of the quality of the water •Contamination of groundwater towels •Bad smell •Eutrophication •Multiplication of pathogens •Diseases such as tuberculosis, hepatitis, cholera and diarrhea •Death of living beings •Do not litter the streets, beaches, rivers or the sea. •Put your household waste in an adequate and safe place so that it is not converted in marine litter. •Do not waste water, at home or anywhere else. •Channel all the water that is used by the population to a treatment station. Yes! An aquifer is a subterranean geological formation that works like a water reservois, wich is fed by rainwater that is filtered through the subsoil. Aquifers are rocks with porous characteristics and permeable capabilities to retain and supply water for wells and springs in sufficiant amounts to serve as plentiful sources of water. “A espuma castanha que cobriu aquela faixa de rio teve origem nas indústrias da pasta de papel. A instituição detetou níveis de celulose “cinco mil vezes acima do normal”, segundo confirmou Nuno Lacasta, presidente da APA.” “Arlindo é perentório: “Se não pararem com isto o rio não aguenta.”” -Visão 2018 •Is located between an upper permeable layer and a lower impermeable layer. •Water pressure is equal to atmospheric pressure. •Water recharge is faster because the upper layer is permeable and allows rainfale to pass directly through it to the aquifer. •Water levels change greatly depending heavily on the changing seasons. Is delimited at the tops and bottons by mpermeable layers of rock. •The water pressure is higher than the atmospheric pressure. •Water recharge is slower because it is done laterally in a limited zone what is exposed to the surface. •Water levels do not change much from season to season. • Represents 97% of the freshwater available on the planet. • The aquifers rocks filter the water retaining: -Pollutants, -Bacteria -And other types of residual matter. • It makes the water pure and perfect for drinking! Introduction: Clean and fresh water is essential to all life forms. Over the past 60 years, the world’s population has doubled, water consumption has been multiplied by seven. We wasted about 40% of the treated water, while a quarter of the population in developing countries have no access to potable water. 10 million people, equivalent to the Portuguese population, die every year due to the intake of polluted water. Keywords: H2O, pollution, eutrophication, aquifers, potable Summing up, water is the most important resource for our society and for our life on Earth. Therefore, we call on for the preservation of this scarce resource, by neither polluting, nor overloading it’s caption in underground layers. Sou água doce Nos rios, nos lares Sou água que gera energia, vida, saúde e alegria Sou, hoje, água triste Descendo o morro Escondida na calha Pedindo socorro Salvem-me! Alaíde Santos, publicada no Cartaz "Água: fonte de vida Sou água caindo nas matas Brincando nas ruas Virando cascata Sou água descendo a serra Adornando a colina Entrando na terra Sou água escorrendo dos montes Enchendo os rios Jorrando nas fontes Sou água salgada Nas praias, nos mares Webgrafy: http://www.notapositiva.com/old/pt/trbestbs/geologia/11_aguas_subterraneas_d.htm http://tjgeologia.blogs.sapo.pt/5860.html ; https://pt.scribd.com/presentation/68538646/Poluicao-aquatica ; https://www.todabiologia.com/ecologia/poluicao_da_agua.htm ; https://www.infoescola.com/ecologia/poluicao-da-agua/ ; http://visao.sapo.pt/actualidade/sociedade/2018-01-25-Rio-Tejo-acordou- castanho-em-Abrantes ; http://www.pensamentoverde.com.br/meio-ambiente/causas-consequencias-poluicao-agua/ http://visao.sapo.pt/actualidade/sociedade/2018-02-01-Rio-Tejo-Poluicao-vem-da-industria Agrupamento de Escolas de Ponte de Sor Escola Secundária de Ponte de Sor Figura 1- eutrofização Figura 2 – Tipos de aquíferos Figura 3 – gráfico