write a article on the topic of pollution it's types ,causesand prevention
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What is Pollution?
“Pollution is the introduction of substances (or energy) that cause adverse changes in the environment and living entities .”
Pollution need not always be caused by chemical substances such as particulates (like smoke and dust). Forms of energy such as sound, heat or light can also cause pollution. These substances that cause pollution are called pollutants.
Pollution, even in minuscule amounts, impacts the ecological balance. Pollutants can make their way up the food chain and eventually find their way inside the human body. Read on to explore the types of pollution and their implications.
Types of Pollution
As stated before, there are different types of pollution, which are either caused by natural events (like forest fires) or by man-made activities (like cars, factories, nuclear wastes, etc.) These are further classified into the following types of pollution:
Air Pollution
Water Pollution
Soil Pollution
Noise Pollution
Besides these 4 types of pollution, other types exist such as light pollution, thermal pollution and radioactive pollution. The latter is much rarer than other types, but it is the deadliest.
The harmful pollutants responsible for polluting the environment are:
Nitrogen oxide
Sulphur oxide
Mercury
Particulate matter
Chlorofluorocarbon
Volatile organic compound
The different types of pollutants are:
Primary Pollutants: These are the pollutants that are emitted directly from the sources such as volcanic eruptions, combustion of fossil fuel, etc. These include nitrogen oxide, sulphur oxide, etc.
Secondary Pollutants: These are the pollutants that are not directly emitted from the sources but are formed when primary pollutants react in the atmosphere. For eg., ozone.