Pollution - Types and Sources — Flashcards

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Pollution is any activity that violates the original character of nature and leads to its degradation. It is caused by improper management of resources or careless human activity.

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A pollutant is a substance that causes pollution. Examples include carbon dioxide and carbon monoxide. Pollutants may be biodegradable like domestic garbage or non-biodegradable like glass and plastic…

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The main types are air pollution, water pollution, soil pollution, radiation pollution, and noise pollution. These affect life, health, and natural systems in different ways.

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Air that supports life on Earth has 78% nitrogen, 21% oxygen, and 1% other gases. This balance is important for living organisms and natural processes.

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Air pollution occurs when large amounts of gases and tiny particles are released into the air and disturb the ecological balance. It can harm people, animals, plants, and the atmosphere.

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Primary air pollutants are pollutants that are directly released into the air. Examples include smoke, dust, ash, sulphur oxide, nitrogen oxide, and radioactive compounds in SPM.

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Secondary air pollutants are formed due to chemical interactions between atmospheric components and primary pollutants. Smog and ozone are examples.

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SPM stands for Suspended Particulate Matter. It includes smoke, dust, ash, sulphur oxide, nitrogen oxide, and radioactive compounds. It is a primary air pollutant.