Water Pollution

&<–2/”>a >nbsp;

Addition of certain substances to the water such as organic, inorganic,

biological, radiological, heat, which degrades the quality of water so that it

becomes unfit for use.

Putrescibility is the process of decomposition of organic matter present in water by Microorganisms using Oxygen.

Water having DO (dissolved oxygen) content below 8.0 mg/L may be

considered as contaminated. Water having DO content below. 4.0 mg/L is

considered to be highly polluted.

Water pollution by organic wastes is measured in terms of Biochemical Oxygen Demand-(BOD). BOD is the amount of dissolved oxygen needed by bacteria in decomposing the organic wastes present in water.

Chemical oxygen demand (COD) is a slightly better mode used to measure pollution load in water. It is the measure of oxygen equivalent of the requirement of oxidation of total organic matter (i.e. biodegradable and non- biodegradable) present in water.

A cripling deformity called Minamata disease due to consumption of fish captured from mercury contaminated Minamata Bay.

Water contaminated with cadmium can cause itai itai disease also called ouch-ouch disease (a painful disease of bones and joints) and cancer of lungs and liver.

The compounds of lead cause anaemia, headache, loss of muscle power and bluish line around the gum

Excess nitrate in drinking water reacts with hemoglobin to form non -functional met haemoglobin, and impairs oxygen transport. This condition is called methaemoglobinemia or Blue baby syndrome.

Over exploitation of ground water may lead to leaching of arsenic from Soil and rock sources and contaminate ground water. Chronic exposure to arsenic causes black foot disease. It also causes diarrhoea,-peripheral neuritis, hyperkerotosis and also lung and skin cancer.,

Water pollution is the contamination of water bodies (lakes, rivers, Oceans, aquifers and groundwater). It occurs when pollutants are discharged directly or indirectly into water bodies without adequate treatment to remove harmful compounds. Water pollution can cause serious Health problems and damage the Environment.

There are many causes of water pollution, including:

Industrial waste: Factories and other industrial facilities often discharge wastewater into nearby water bodies. This wastewater can contain harmful chemicals, metals, and other pollutants.
Agricultural runoff: When it rains, Fertilizers and pesticides from farms can wash into nearby water bodies. These chemicals can harm fish and other aquatic life, and they can also contaminate drinking water supplies.
Urban runoff: When it rains, oil, grease, and other pollutants from streets and parking lots can wash into storm drains. These pollutants can then flow into nearby water bodies.
Sewage: Sewage is wastewater from homes and businesses. It contains human waste, as well as other pollutants. If sewage is not properly treated, it can contaminate drinking water supplies and harm aquatic life.
Oil spills: Oil spills can occur when oil tankers or pipelines leak, or when oil is accidentally released into the environment. Oil spills can have a devastating impact on marine life and coastal Ecosystems.
Marine debris: Marine debris is any man-made object that ends up in the ocean. This includes plastic bags, bottles, fishing gear, and other items. Marine debris can harm marine life by entanglement, ingestion, and smothering.

Water pollution can have a number of negative effects on human health and the environment. Some of the effects of water pollution include:

Illness: Water pollution can cause a variety of illnesses, including gastrointestinal problems, respiratory problems, and neurological problems.
Death: In some cases, water pollution can be fatal. For example, exposure to certain pollutants can cause cholera, typhoid, and other diseases that can lead to death.
Ecosystem damage: Water pollution can damage ecosystems by killing fish and other aquatic life, and by disrupting the food chain.
Economic damage: Water pollution can damage the economy by reducing the productivity of Fisheries-2/”>Fisheries, tourism, and other industries that rely on clean water.

There are a number of things that can be done to control and prevent water pollution. Some of the most effective methods of water pollution control include:

Wastewater treatment: Wastewater treatment Plants remove harmful pollutants from wastewater before it is discharged into water bodies.
Stormwater management: Stormwater management systems collect and treat runoff from streets and parking lots before it can pollute water bodies.
Sewage treatment: Sewage treatment plants remove harmful pollutants from sewage before it is discharged into water bodies.
Oil spill prevention: Oil spill prevention measures include using double hulls on oil tankers, installing leak detection systems, and conducting regular inspections.
Marine debris reduction: Marine debris reduction measures include reducing the use of single-use plastics, recycling, and properly disposing of waste.

Water pollution is a serious problem that can have a devastating impact on human health and the environment. However, there are a number of things that can be done to control and prevent water pollution. By taking action to reduce water pollution, we can protect our health, our environment, and our economy.

In addition to the methods of water pollution control listed above, there are a number of other things that can be done to prevent water pollution. These include:

Educating the public about the dangers of water pollution
Advocating for stricter water pollution regulations
Supporting research into new methods of water pollution control
Volunteering with organizations that are working to protect water quality

Water pollution is a complex issue, but it is one that we can solve if we work together. By taking action to prevent water pollution, we can protect our health, our environment, and our future.

What is Climate change?

Climate Change is the long-term alteration of temperature and typical weather patterns in a place. Climate change could refer to a particular location or the planet as a whole. Climate change may cause weather patterns to be less predictable. A region might experience lower or higher than Average temperatures. Climate change may cause more frequent and severe weather events, such as storms, floods and droughts.

What are the Causes of Climate Change?

The main cause of climate change is the emission of greenhouse gases such as carbon dioxide, methane and nitrous oxide. These gases trap heat in the Atmosphere, causing it to warm. The main sources of greenhouse gas emissions are from burning fossil fuels for electricity, heat and transportation. Other sources include deforestation, agriculture and industrial processes.

What are the effects of climate change?

Climate change is already having a significant impact on the planet. The average global temperature has increased by about 1 degree Celsius since the late 19th century. This warming is causing a number of changes, including:

Rising sea levels: As the Earth’s temperature warms, the ice caps and Glaciers are melting, causing sea levels to rise. This is leading to flooding in coastal areas and erosion of shorelines.
More extreme weather events: Climate change is making extreme weather events, such as storms, floods and droughts, more frequent and severe. These events can cause widespread damage and displacement.
Changes in plant and animal life: Climate change is causing changes in the distribution of plant and animal life. Some species are moving to new areas in order to find suitable habitats. Others are facing extinction.

What can be done to address climate change?

There are a number of things that can be done to address climate change. These include:

Reducing greenhouse gas emissions: This can be done by switching to RENEWABLE ENERGY sources, improving Energy Efficiency and reducing our reliance on fossil fuels.
Adapting to the effects of climate change: This includes measures such as building sea walls to protect coastal areas from flooding and developing drought-resistant crops.
Investing in research and development: This is essential to finding new ways to reduce greenhouse gas emissions and adapt to the effects of climate change.

What is the role of individuals in addressing climate change?

Individuals can play a significant role in addressing climate change. This includes:

Reducing their energy consumption: This can be done by turning off lights when they leave a room, unplugging appliances when they are not in use and using energy-efficient appliances.
Driving less: This can be done by walking, biking or taking public transportation whenever possible.
Eating less meat: The production of meat is a major source of greenhouse gas emissions. Eating less meat can help to reduce your impact on the environment.
Recycling and composting: This helps to reduce the amount of waste that goes to landfills, which releases methane, a greenhouse gas.
Planting trees: Trees absorb carbon dioxide from the atmosphere, which helps to reduce greenhouse gas levels.

What is the future of climate change?

The future of climate change depends on the actions that we take to address it. If we do not take significant action to reduce greenhouse gas emissions, the Earth’s temperature could rise by 2 degrees Celsius or more by the end of the century. This would have devastating consequences for the planet, including widespread flooding, droughts, extreme weather events and the extinction of many species. However, if we take strong action to reduce greenhouse gas emissions, we can limit the rise in temperature and avoid the worst effects of climate change.

Which of the following is not a type of water pollution?
(A) Point source pollution
(B) Nonpoint source pollution
(C) Groundwater pollution
(D) Air Pollution
Which of the following is the most common type of water pollution?
(A) Point source pollution
(B) Nonpoint source pollution
(C) Groundwater pollution
(D) Air pollution
Point source pollution comes from a specific source, such as a factory or sewage treatment plant. True or False?
Nonpoint source pollution comes from many sources, such as runoff from farms or roads. True or False?
Groundwater pollution is caused by contamination of groundwater by human activities. True or False?
Air pollution can cause water pollution. True or False?
Water pollution can cause a variety of health problems, including respiratory problems, gastrointestinal problems, and reproductive problems. True or False?
Water pollution can also harm wildlife. True or False?
There are a number of things that can be done to reduce water pollution, including reducing pollution from factories and sewage treatment plants, reducing runoff from farms and roads, and protecting groundwater. True or False?
Water pollution is a serious problem that can have a significant impact on human health and the environment. True or False?