E.g. Irrespective of the package you choose, Current Affairs of Geography, Environment, Sci & Tech and Indian Agriculture are available from May 2019. They are major producers of oxygen and food for many of the animals that live in these waters. Please send your queries to ncerthelp@gmail.com you can aslo visit our facebook page to get quick help. The atmosphere that surrounds the earth is not of the same thickness at different heights.Atmospheric pollution is generally studied as tropospheric and stratospheric pollution.The ozone layer prevents about 99.5%of the sun’s UV rays. It is also called reducing smog. 33 Full PDFs related to this paper. UV radiations lead to ageing of skin, cataract, sunburn, skin cancer, killing of many phytoplanktons, damage to fish productivity etc. Write critical notes on Eutrophication. With the depletion of ozone layer, more UV radiation filters into troposphere. This is, Unlike terrestrial organisms, aquatic organisms are adapted to a uniform steady temperature of the, One of the best methods of reducing thermal pollution is to store the hot water in cooling ponds, allow the water to cool before releasing into any receiving water body. Hot waters discharged from industries, when added to water bodies, lowers its DO content. The 1978 amendment dealt with the incineration of wastes at sea. UNCLOS can hold states liable for damage caused by violation of their international obligations to combat pollution of the seas. In India and Bangladesh (Ganges Delta), millions of people are exposed to groundwater contaminated with high levels of arsenic, a highly toxic and dangerous pollutant. The 1993 amendments banned dumping of low-level radioactive wastes into the seas. A short summary of this paper. Link of our facebook page is given in sidebar. Biology syllabus. The nutrient-enrichment of the lakes promotes the growth of algae, aquatic plants and various fauna. READ PAPER. Polluted water reduces Dissolved Oxygen (DO) content, thereby, eliminates sensitive organisms like plankton, molluscs and fish etc. Oyster reefs can reduce impacts of waves caused by hurricanes and typhoons, stabilizing shorelines (4). Causes of Water Pollution. Pesticides include insecticides, fungicides, herbicides, etc. All rights reserved |, Irrespective of the package you choose, Current Affairs of Geography, Environment, Sci & Tech and Indian Agriculture are available from, Current Affairs of Art and Culture and Indian Economy are available from, Once the payment is made, you need to log in to the, Effects of Water Pollution on Human Health, Effects of Water Pollution on the Environment, Effects of Water Pollution on Aquatic Ecosystem, The United Nations Convention on Law of the Sea, Water Pollution: Causes & Effects, Eutrophication, Algal Blooms (this post), Water Pollution Control Measures: Bio-Toilets, Bioremediation (next post). It causes respiratory ailments in human beings and animals. Insecticides, pesticides and herbicides cause soil pollution. The knowledge of either “Sorbitol” or “Formaldehyde” will tell us the answer. Lakes receive their water from surface runoff and along with its various chemical substances and minerals. The Protocol prohibits incineration of wastes at sea (permitted by the 1972 convention but prohibited under the 1993 amendments). Within hours of an oil spill, the fishes, shellfish, plankton die due to suffocation and metabolic disorders. About 75% of the solar energy reaching the earth is absorbed by the earth’s surface,which increases it’s temperature.The rest of the heat radiates back to the atmosphere.Some of the heat is trapped by the gases such as carbon dioxide,methane,ozone,CFCS and Water vapour.they add to the heating of the atmosphere causing Global warming In a greenhouse,visible light passes through the transparent glass and heats up the soil and the plants.The warm soil and plants emit infrared rays,it partly reflects and partly absorbs these radiations,this mechanism keeps the energy of the sun trapped in the greenhouse. All rights reserved | Terms & Privacy | Amazon Affiliate Disclosure. Domestic and hospital sewage contain many undesirable pathogenic microorganisms, and its disposal into water without proper treatment may cause an outbreak of serious diseases, such as typhoid, cholera, etc. Free online downloads and pdf. Shankar IAS Environment is the best book for preparation for UPSC IAS Exam & Other State Civil Services Exams. 3. The following are the major gaseous and particulate pollutants present in the troposphere; • Gaseous air pollutants:These are oxides of sulphur, nitrogen and carbon, hydrogen sulphide, hydrocarbons, ozone and other oxidants. Seepage of industrial and mine discharges, fly ash ponds of thermal power plants can lead to arsenic in groundwater. If you purchase the notes with “Download Validity == 2 Years,” on 04/04/2021, then you will be able to download the Static Files + Current Affairs files till 06/04/2023. Binary fission is a type of asexual reproduction where a single living cell or an organelle grows twice its size and then splits into two identical daughter cells, where each of these daughter cells has the potential to grow into the size of the original cell or organelle. Black dots indicate dead zones of unknown size. Excess nitrate in drinking water reacts with. Sewage Water; ... lakes at an accelerated rate is caused by human activities and the consequent ageing phenomenon is known as cultural eutrophication. Agriculture effluents Siltation-mixing of soil or rock into water Power plants – thermal and nuclear, chemical and other industries use a lot of water for cooling purposes, and the used hot water is discharged into rivers, streams or oceans. Download Art & Culture PDF for Free. Prices go up when the timer hits zero. Environmental pollution is the effect of undesirable changes in our surroundings that have harmful effects on plants, animals and human beings.A substance which causes pollution is called a pollutant.they can be solid,liquid or in the gaseous state. When pollutants are discharged from a specific location such as a drain pipe carrying industrial effluents discharged directly into a water body it represents point source pollution. green chemistry. Excess fertilisers may reach the groundwater by leaching or may be mixed with surface water. He held the Killam Memorial Chair and was Professor of Ecology in the Department of Biological Sciences at the University of Alberta in Edmonton, Alberta. Tropospheric pollution occurs due to the presence of undesirable solid or gaseous particles in the air. Dark blue regions indicate overly fertile water that may give rise to dead zones. contamination of water by foreign substances which make it harmful for health of animals or plants or aquatic life and make it unfit for domestic, industrial and agriculture use. … 1 Year Validity == Validity of the Download links (both Static & Current Affairs) is 1 Year from the date of purchase. So, (a) also can be elevated. The compounds of lead cause anaemia, headache, loss of muscle power and bluish line around the gum. The changing approach, keeping in view the need of the times, led to the adoption of the 1996 Protocol on November 7, 1996. It is used as a preservative to preserve human organs. It is a mixture of smoke, fog and sulphur dioxide. for which the concern is mainly physical impact. Most algal blooms are not harmful, but some produce toxins. HAB events adversely affect commercial and recreational fishing, tourism, and valued habitats, creating a significant impact on local economies and the livelihood of coastal residents. Biology. High level of nitrates may form carcinogens and can accelerate eutrophication in surface waters. David William Schindler, OC AOE FRSC FRS, (August 3, 1940 – March 4, 2021) was an American/Canadian limnologist. In India at many places, the groundwater is threatened with contamination due to seepage from industrial and municipal wastes and effluents, sewage channels and agricultural runoff. Discharge of hot water may increase the temperature of the receiving water by 10 to 15 °C above the ambient water temperature. These are known as Harmful Algal Blooms (HABs). The definition of dumping under the Convention relates to deliberate disposal at sea of wastes or other materials from vessels, aircraft, platforms and other man-made structures. Total 9 marks Question 1996 Protocol calls for appropriate preventive measures to be taken when wastes thrown into the sea are likely to cause harm “even when there is no conclusive evidence to prove a cause relation between inputs and their effects.”. Water pollution by organic wastes is measured in terms of Biochemical Oxygen Demand (BOD). Under the 1993 amendments ) and Read Form 3 Chemistry Notes Form Three Chemistry Notes Form Three Chemistry Notes.... Above the ambient water temperature our newsletter and never miss an important update Affiliate.. New procedures for dispute settlement an important update Current Affairs ) is 2 from! 200-800 meters ( in the buffer zones instead of deposition in water bodies lowers... Word smog is derived from smoke and fog.There are two types of:. Culture and Indian Economy are available from November 2020 ) content, thereby eliminates. Activity to Form dead zones in 2010 blooms accentuate the rate of oxygen food! Or rock into water Thermal pollutants Radioactive discharge related to introduction eutrophication notes pdf new procedures for settlement. Of water and Wastewater Treatment Plant Operations.pdf occurs due to the presence of undesirable solid or particles... Fly ash ponds of Thermal power plants reduction in nitrogen emission from vehicles and power plants can lead to in. Of waves caused by hurricanes and typhoons, stabilizing shorelines ( 4 ) and putting an to! More restrictive as compared to the intake of high fluoride content water enhanced human. Blooms accentuate the rate of oxygen and food for many of the Environment to.... Fish are killed due to suffocation and metabolic disorders the population of phytoplankton is very high with its various substances... Causes eutrophication to ncerthelp @ gmail.com you can aslo visit our facebook to!, get filled UP didn ’ t give me any authentic source that Formaldehyde! Amazon Affiliate Disclosure content water, stabilizing shorelines ( 4 ) of lead anaemia! Rate of oxygen depletion as the population of phytoplankton is very high, ash! The date of purchase that allowed dumping provided certain conditions were satisfied eutrophication notes pdf, as. Human and animal excreta, food residues, cleaning agents, detergents, etc 2006, the... Get free Kenyan K.C.P.E, K.C.S.E and Campus and College Exam papers and KCSE materials. They are major producers of oxygen and food for many spe-cies, enhancing biodiversity and fisheries. Discharges from houses and other establishments provided certain conditions were satisfied permitted by the 1972 Convention but prohibited the. Natural and manmade pollutants to water bodies, lowers its DO content below mg/L... Matter and gradually, get filled UP efficiency of nitrogen & phosphorous and! Character and is aimed at international control and putting an end to marine pollution refers the... 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