7 Types Of Pollution

What Is Pollution Explain? | What Are The 7 Different Types Of Pollution With Their Causes & Effects - Water, Air, Radioactive, Noise, Light, Thermal - www.pupilstutor.com

7 Types Of Pollution

Pollution is the introduction of contaminants into the natural environment that causes adverse change. Pollution can take the form of chemical substances or energy, such as noise, heat, or light.

  • Pollution is often classed as point source or nonpoint source pollution.
  • The point sources are easy to identify, monitor and control, whereas the non-point sources are hard to control.

What Are The 7 Types Of Pollution?

The 7 Types Of Pollution Are:

1. Water Pollution:

Water Pollution has taken a toll on all the surviving species of the earth. Almost 60% of the species live in water bodies.

It occurs due to several factors:

  • The industrial wastes dumped into the rivers and other water bodies cause an imbalance in the water leading to its severe contamination and death of aquatic species.
  • Eutrophication is another big source of water pollution. It occurs due to daily activities like Washing clothes, Utensils near lakes, ponds, or rivers.
    • This forces detergents to go into water which blocks sunlight from penetrating, thus reducing oxygen and making it inhabitable.
  • Also spraying insecticides, pesticides like DDT on plants pollutes the groundwater system and oil spills in the oceans have caused irreparable damage to the water bodies.

Water pollution not only harms aquatic beings but also contaminates the entire food chain by severely affecting humans dependent on these. Water-borne diseases like cholera, diarrhea has also increased in all places.


2. Air Pollution:

Air pollution is the most prominent and dangerous form of pollution.

It occurs due to many reasons.

  • Excessive burning of fuel which is a necessity of our daily lives for cooking, driving, and other industrial activities, releases a huge number of chemical substances in the air every day, these pollute the air.
  • Release of Sulphur dioxide and hazardous gases into the air causes global warming and acid rain which in turn have increased temperatures, erratic rains, and droughts worldwide making it tough for the animals to survive.
  • Smoke from chimneys, factories, vehicles, or burning of wood, coal burning, releases Sulphur dioxide into the air making it toxic.

Breathing this polluted particle from the air result in an increase in asthma and cancer in the lungs.


3. Soil Pollution:

Soil Pollution occurs due to the incorporation of unwanted chemicals in the soil due to human activities.

  • The use of insecticides and pesticides absorbs the nitrogen compounds from the soil making it unfit for plants to derive nutrition from.
  • Since plants can’t grow properly, they can’t hold the soil and this leads to soil erosion.
  • Release of industrial waste, mining, and deforestation also exploits the soil.

4. Radioactive Pollution:

Radioactive pollution is highly dangerous when it occurs. It can occur due to

  • Nuclear plant malfunctions,
  • Improper nuclear waste disposal,
  • Accidents, etc.

It causes

  • Cancer,
  • Blindness, and defects at the time of birth;
  • Infertility,
  • Can sterilize soil and affect air and water.

5. Noise Pollution:

  • Continuous noise that is loud enough to be annoying or physically harmful is known as noise pollution.
  • Noise pollution is caused when noise which is an unpleasant sound affects our ears and leads to psychological problems like

    • Stress,
    • Hypertension,
    • Hearing impairment, etc.
  • It is caused by machines in industries, loud music, etc.

6. Light Pollution:

Light from cities and towns at night that interferes with astronomical observations is known as light pollution.

  • It can also disturb natural rhythms of growth in plants and other organisms.
  • Light pollution occurs due to prominent excess illumination of an area.
  • In residential areas, the lives of the inhabitants are greatly affected by this.
  • It also affects astronomical observations and activities by making the stars almost invisible.
  • It is largely visible in big cities, on advertising boards and billboards, in sports or entertainment events at the night.

7. Thermal Or Heat Pollution:

Heat from hot water that is discharged from a factory into a river or lake, where it can kill or endanger aquatic life, is known as thermal pollution.

  • Thermal pollution is due to the excess heat in the environment creating unwanted changes over a long time period.
  • It is due to the huge number of industrial plants, deforestation, and air pollution.
  • It increases the earth’s temperature, causing drastic climatic changes and the extinction of wildlife.
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