Control Measures. Studies have revealed that historic mining practices in the upper Macleay catchment have caused significant arsenic and antimony contamination of soil and in-stream sediments, from Hillgrove to the Pacific Ocean – a distance of more than 300 kilometres. Arsenic contamination in groundwater India. Arsenic contamination of groundwater is widespread and there are a number of regions where arsenic contamination of drinking-water is significant. Chronic arsenic poisoning causes melanosis and keratosis (dark spots on the upper chest, back and arms are known as melanosis. Arsenic contamination of groundwater is widespread and there are a number of regions where arsenic contamination of drinking-water is significant. Arsenic Contamination: Arsenic Contamination through natural (geogenic) and anthropogenic sources is a serious threat to humans all over the world. Arsenic contamination in water may also be due to industrial processes such as those involved in mining, metal refining, and timber treatment. According to recent study, arsenic contamination in paddy is rising from ground water in West Bengal. Samples from 101 stations had two metal contaminations and 6 stations had three metal contamination. For Mains: Concerns associated and government … Arsenic contamination of groundwater is a problem that affects millions of people across the world. Contamination of Ground Water Due to Arsenic and Fluoride. ; Settlement is a man’s important step towards adaptation in his physical environment and to enjoy a social life. Arsenic. The skin hardens due to the accumulation of arsenic in the blood. It is highly toxic in its inorganic form. WHO's Guideline Value for arsenic in drinking water is 0.01 mg /litre. Arsenic and iron in water - UPSC Current Affairs Insight. Natural: Some substances found naturally in rocks or soils, such as iron, manganese, arsenic, chlorides, fluo- rides, sulfates, or radionuclides, can become dissolved in groundwater. It reveals that rise in arsenic contamination of paddy plants due to concentration of arsenic accumulation depends on variety of paddy and its stage in crop cycle. Arsenic Contamination . Search. This increased to 4,421 habitations as of September 2020. For Mains: Increasing arsenic contamination- issues, concerns, WHO guidelines. Some substances may pose a health threat if consumed in excessive quantities; others may … As you know, the Environment comes under Prelims as well as GS Paper-3 in UPSC Mains Syllabus.Almost 12-28 questions are coming in the UPSC Prelims exam every year, from this part only.. Recently released 2008 National Census data has revealed village level statistics for drinking water sources. Download CNA for 14th March 2021. Arsenic. Most of the arsenic-affected habitations lie in the Ganga and Brahmaputra alluvial plains. Major Governmental Interventions in the Social Sector. Statement 2 is correct. This figure is limited by the ability to analyse low concentrations of arsenic in water. Fluoride: Fluoride is the simplest anion of fluorine. The occurrence of Arsenic in groundwater was first reported in 1980 in West Bengal in India. Treatment of sewage water and industrial effluents should be done before releasing them into water bodies. The most common contaminant in 156 sampled sites was iron with levels above safe limits. Simplifying UPSC IAS Preparation. Around 110 millions of those peoples live in 10 countries in South and South-East Asia: Bangladesh, Cambodia, China, India, Laos, Myanmar, Nepal, Pakistan, Taiwan and Vietnam. Context: West Bengal government’s rice research centre has come up with a new variety of rice called Muktoshri that can be grown in arsenic prone areas. In terms of charge and size, the fluoride ion resembles the hydroxide ion. India had 1,800 arsenic-affected habitations in 2015. Groundwater contamination with arsenic is very common in areas where it is present. Arsenic contamination of groundwater in different parts of the world is an outcome of natural and/or anthropogenic sources, leading to adverse effects on human health and ecosystem. Groundwater arsenic contamination is most prevalent in parts of Kandal, Kampong Cham, and Prey Veng provinces. It is now recognized that at least 140 million people in 50 countries have been drinking water containing arsenic at levels above the WHO provisional guideline value of 10 μg/L (4). About Muktoshri: 26 March 2021: Daily Current Affairs for UPSC Exam 1) Why no decision on list sent by Collegium, SC asks government. After food, shelter is the most important need of man. the entry of arsenic in food chain leads to diffused contamination, possibilities of bio-magnification in food products. Arsenic is a chemical element occurs in many minerals, usually in combination with sulfur and metals. Thus, statistics of arsenic being present in 270 out of 464 Upazilas in the country need to be tempered with the fact that the level of arsenic as well as percentage of wells contaminated can vary considerably within each Upazila. Distribution. The next stage is keratosis in which palms become hard) and leads to loss of appetite, weight, diarrhoea, gastrointestinal disturbances and skin cancer. i.e in Assam, Bihar, West Bengal, Punjab, and Uttar Pradesh (UP). Environment deterministic approach (where environment determines the relationship between man and environment) with clearly highlighted the need for shelter due to extremes. About one third of the arsenic in the atmosphere comes from natural sources, such as volcanoes, and the rest comes from man-made sources. Contaminated water used for drinking, irrigation of food crops and food preparation poses the greatest threat to public health from arsenic Long-term exposure to … Continue reading Arsenic Contamination Extent of Groundwater Contamination in India: Arsenic: West Bengal, … It causes an illness called arsenicosis, the early manifestations of which are the appearance of dark and white patches on the skin. Arsenic contamination has become a big public health issue. Arsenic problem contamination of drinking water occurs due to excessive use of arsenic containing chemical pesticides viz copper arsenate and lead arsenate in the modern agriculture. Why in News? Arsenic is a natural component of the earth’s crust and is widely distributed throughout the … UPSC Exam Details UPSC Exam Notification ... Arsenic contamination is a serious problem in the tubewell dug areas of the Gangetic delta. It is widely distributed throughout the environment in the air, water and land. Malnutrition may aggravate the effects of arsenic in blood vessels. Important aspects of governance, transparency and accountability . Initiative of government in the field of education. Arsenic contamination: Arsenic is naturally present at high levels in the groundwater of a number of countries. Environmental issues in Rural Settlement. Groundwater Contamination ... • Arsenic: In the Ganges Plain of northern India and Bangladesh severe contamination of groundwater by naturally occurring arsenic affects 25% of water wells in the shallower of two regional aquifers. Apart from West Bengal, Arsenic contamination in groundwater has been found in the states of Assam, Bihar, Chhattisgarh, Haryana, Jharkhand, Karnataka, Punjab and … Mains level : Prevention of water pollution. Natural resources of arsenic exposure may include contaminated groundwater, volcanic sediments, coal, and springs sourced by thermal waters. According to data tabled by the Ministry of Jal Shakti, 3.22 per cent of rural habitations across all states and UTs, accounting for 3.73 per cent of the population, were consuming drinking water with quality issues. Search Here. Today In this article I want to walk you through the complete Environment syllabus for UPSC Prelims and Mains Exam. Search [wp-night-mode-button] Posted on May 6, 2019 by InsightsIAS. Arsenic compounds can be used to make special glass and preserve wood. Governmental Interventions in health arena. Arsenic contamination . From UPSC perspective, the following things are important : Prelims level : Arsenic contamination and bioremediation. 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. Muktoshri- Arsenic-Resistant rice. Government policies and interventions for development in various sectors and issues arising out of their design and implementation. It is highly toxic in its inorganic form. Arsenic is a natural component in the earth’s crust. Context: Researchers in West Bengal have developed and commercialized a rice variety that is resistant to Arsenic and can be grown in areas with very high arsenic-contamination.Last year West Bengal issued a Gazette notification for the commercial use of “Muktoshri”. Biological magnification and eutrophication. Arsenic-based pesticides are the best examples of agricultural applications of arsenic. Arsenic contamination ofwell waters in Nova Scotia, Canada was first identified in 1976 when a resident of Waverly (Halifax county) was diagnosed as being intoxicated with arsenic. the rice, wheat, vegetables, feeder crops of livestocks. For Prelims: Arsenic contamination- state- wise level of contamination. Arsenic contamination in drinking water threatens more than 150 millions peoples all over the world. arsenic contaminated ground water is used for drinking, irrigation of agricultural fields to grow different food crops and vegetables. Topics covered: Conservation and water pollution. Millions of people from different countries are heavily dependent on groundwater containing elevated level of As for drinking purposes. Arsenic contamination. Seepage of industrial and mine discharges, fly ash ponds of thermal power plants can lead to arsenic in groundwater. Hot water should be let to cool off before its release from the power plants. Get the latest news analysis for UPSC exam: Modi, Gotabaya speak ahead of Geneva vote; Pollution linked to virus spread: Vardhan; Gregarious bamboo flowering in Wayanad poses threat; Framework for testing water launched A number of acute and sub-acute arsenic intoxication cases have been reported in the affected regions. in arsenic contamination levels across the country, and this variation can occur at small spatial scales (even sub-village scales). Arsenic contamination- effects. GS 2 . Its salts and minerals are important chemical reagents and industrial chemicals, mainly used in the production of hydrogen fluoride for fluorocarbons. The well water in the resident's home was found to contain 5 mgll ofarsenic, which was ten times the maximum acceptable concentration in Canada of 0.05 mg/l. This large amount of inorganic arsenic-based pesticides has led to serious arsenic contamination in the environment. Search Here. 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