define the term pollution and explain different types of pollutions
Answers
Pollution is the introduction of contaminants into the natural environment that cause adverse change. ... Pollutants, the components of pollution, can be either foreign substances/energies or naturally occurring contaminants. Pollution is often classed as point source or nonpoint source pollution.
There are three types of pollution
1. Major source of air pollution results from the burning of fossil fuels. Vehicle and factory emissions are common sources of this type of air pollution. The burning of fossil fuels contributes to the formation of smog, a dense layer of particulate matter that hangs like a cloud over many major cities and industrial zones. Air pollution contributes to respiratory problems such as asthma, lung cancer, chronic bronchitis, and other lung ailments. Nitrogen and sulfur oxides in the air contribute to acid rain, which is a form of precipitation with a lower (more acidic) pH than normal. Acid rain harms forests, species that live in water bodies, and degrades outdoor statues, monuments, and buildings.
2. major source of water pollution is runoff from agricultural fields, industrial sites, or urban areas. Runoff disrupts the water body's natural balance. For example, agricultural runoff typically includes fertilizer or toxic chemicals. Fertilizer can cause algal blooms (an explosive growth of algae), choking out other plants and decreasing the amount of available oxygen necessary for the survival of other species. Raw sewage is another type of water pollutant. When sewage gets into the drinking water supply, serious stomach and digestive issues may result, including the spread of diseases such as typhoid or dysentery. A third source of water pollution is trash. Improperly disposed of items, such as plastic bags, fishing line, and other materials may accumulate in the water and lead to the premature death of animals that get tangled within the garbage.
3. Soil can become polluted by industrial sources or the improper disposal of toxic chemical substances. Common sources of soil pollution include asbestos, lead, PCBs, and overuse of pesticides/herbicides. In the United States, the Environmental Protection Agency (EPA) is in charge of cleaning up uncontrolled hazardous waste sites, which are referred to as "Superfund" sites. Many of these sites are abandoned or improperly-managed industrial zones.
The term pollution refers to the addition of undesirable substances in that particular substance such as air water and soil. These undesirable substances are called pollutants.
Three main types of pollution are:
a). Water pollution
it it refers to the contamination of water bodies usually by human activities.
b). Air pollution
Air is said to be polluted when poisonous and harmful chemicals get added to it.
c). Soil pollution
reduce in the quality of soil is considered as soil pollution.