Question

"smog a very different kind of air pollution ."write a note on it​

Answer 1

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Answer 2

Answer:

smog a very different kind of air pollution

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Smog is a serious problem in most big urban areas. The emissions from vehicles and industries as well as the combustion of wood and coal together with the buildup of certain weather conditions are the main causal agents of smog. The terminology refers to a mixture of liquid and solid fog and smoke particles. It is usually seen as yellowish or blackish fog which suspends in the atmosphere or forms a ceiling in the air. It happens when fume, emissions, and particulates (nitrogen and sulfur oxides and volatile organic compounds) react in the presence of sunlight to form ground-level ozone.

The gaseous emissions are the main elements that form smog when acted upon by the sun’s ultraviolet light together with particulate matter and volatile organic compounds. Dense urban areas suffer more from smog because of huge numbers of traffic, industries and combustion of different types of fuel. Smog has serious negative effects on people, plants, and animals. Below are few causes, effects and solutions to smog pollution.

smog-in-the-morning

Wikipedia defines smog as,

“Smog is a type of air pollutant. The word “smog” was coined in the early 20th century as a portmanteau of the words smoke and fog to refer to smoky fog, its opacity, and odour. This kind of visible air pollution is composed of nitrogen oxides, sulfur oxides, ozone, smoke or particulates among others (less visible pollutants include carbon monoxide, CFCs and radioactive sources). Human-made smog is derived from coal emissions, vehicular emissions, industrial emissions, forest and agricultural fires and photochemical reactions of these emissions.”

Main Causes of Smog

Smog-forming pollutants from numerous sources such as factories, consumer products or vehicles are the typical causative factors of smog. In most urban areas, more than 50% of smog is formed in consequence of vehicular emissions. Mostly, the occurrences of smog are associated with the relationship between weather patterns and heavy motor vehicle traffic, industrial and other consumer product emissions. Consumer products include solvents, paints, plastic packaging and sprays.

Smog is of two types: photochemical smog – commonly formed in urban areas and originates from elevated levels of hydrocarbon vapors and nitrogen oxides in the presence of sunlight, and sulfur smog – formed when there is an increased level of sulfur oxides in the atmosphere. Below are the main causes of smog.

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