Table of Contents
What is water pollution write a short note?
Water pollution is the contamination of water sources by substances which make the water unusable for drinking, cooking, cleaning, swimming, and other activities. Pollutants include chemicals, trash, bacteria, and parasites.
What causes water pollution in India?
Currently, only 70 percent of India’s states treat less than half of their wastewater. Every year, Bengaluru and New Delhi make global headlines as their heavily polluted water bodies emit clouds of white toxic froth due to a mix of industrial effluents and domestic garbage dumped into them.
What is water pollution wikipedia?
Water pollution (or aquatic pollution) is the contamination of water bodies, usually as a result of human activities, so that it negatively affects its uses. Water bodies include lakes, rivers, oceans, aquifers, reservoirs and groundwater.
How many type of water pollution?
There are two sorts of sources, point and non point sources. Point sources discharge pollutants at specific locations through pipelines or sewers in to the surface water. Nonpoint sources are sources that cannot be traced to a single site of discharge.
How does water pollution affect India?
Waterborne diseases are rampant in India due to high levels of biological contamination of water. Annually about 37.7 million Indians are affected by waterborne diseases, 1.5 million children die of diarrhoea and 73 million working days are lost leading to an economic burden of $600 million a year.
How much of India’s water is polluted?
70%
As India grows and urbanizes, its water bodies are getting toxic. It’s estimated that around 70% of surface water in India is unfit for consumption.
What is river water pollution in India?
Water pollution sewage. Other sources of pollution include agricultural runoff and unregulated small-scale industry. Most rivers, lakes and surface water in India are polluted due to industries, untreated sewage and solid wastes.
What is the water problem in India?
A 2019 NITI Aayog report said that India is suffering from the worst water crisis in its history, and almost 600 million of its population is water-deprived. The report goes on to add that 21 cities — including Bangalore, Delhi, Hyderabad and Chennai — probably exhausted their groundwater resources in 2021.
What is effect of water pollution?
Water pollution depletes aquatic ecosystems and triggers unbridled proliferation of phytoplankton in lakes — eutrophication —. Contamination of the food chain.
What are the causes for water pollution?
Causes of water pollution
- spills or leaks from oil and chemical containers.
- trade effluent going into surface water drains instead of foul water drains, or straight into watercourses.
- removing too much water from surface waters and groundwater.
- run-off containing fertilisers and pesticides from farming into surface waters.
Which is the main source of water pollution?
The main point source of pollution to water is from sewage and waste water treatment, while for diffuse pollution, main sources are from farming and fossil fuel power plants (via the air).
Who made water pollution?
1. Industrial Waste. Industries and industrial sites across the world are a major contributor to water pollution. Many industrial sites produce waste in the form of toxic chemicals and pollutants, and though regulated, some still do not have proper waste management systems in place.
Who discovered the water pollution?
It was not until the 1850s that the connection was made between water contaminated with human feces and disease. Then, during a cholera outbreak in London, physician John Snow (1813–1858) deduced that fecal-contaminated water from a particular well was implicated in the illness.
What is water pollution in India?
Water Pollution in India. Water pollution refers to the contamination of water bodies such as rivers, seas, lakes, groundwater, etc. This pollution is caused by the discharge of pollutants directly or indirectly into water bodies without any concern for its toxicity or its effect on the environment.
How much do you know about air pollution in India?
As per a study based on 2016 data, at least 140 million people in India breathe air that is 10 times or more over the WHO safe limit and 13 of the world’s 20 cities with the highest annual levels of air pollution are in India. The 51% of pollution is caused by the industrial pollution, 27 % by vehicles, 17% by crop burning and 5% by fireworks.
Is India the most polluted country in the world?
According to a WHO study, 13 of the 20 most-polluted cities in the world are in India; however, the accuracy and methodology of the WHO study was questioned by the Government of India. India also has one of the highest number of COPD patients and the highest number of deaths due to COPD.
Why is there a water crisis in India?
Despite extensive river system, safe clean drinking water as well as irrigation water supplies for sustainable agriculture are in shortage across India, in part because it has, as yet, harnessed a small fraction of its available and recoverable surface water resource.