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Smog, or smoke fog, is a type of intense air pollution. The word "smog" was coined in the early 20th century, and is a portmanteau of the words smoke and fog to refer to smoky fog due to its opacity, and odor.
What is Smog? Smog is air pollution that reduces visibility. The word “smog” was coined in the early 20th century, and is a contraction (portmanteau) of the words smoke and fog to refer to smoky fog due to its opacity, and odour.
Jul 13, 2024 · Smog, community-wide polluted air. Although the term is derived from the words smoke and fog, it is often used to describe the pall of automotive or industrial origin that lies over many cities, and its composition is variable. At least two distinct types of smog are recognized: sulfurous smog and photochemical smog.
Oct 19, 2023 · Smog is air pollution that reduces visibility. The term "smog" was first used in the early 1900s to describe a mix of smoke and fog. The smoke usually came from burning coal. Smog was common in industrial areas, and remains a familiar sight in some cities today. Today, most of the smog we see is photochemical smog.
Aug 24, 2021 · Smog is a mixture of air pollutants— nitrogen oxides and volatile organic compounds —that combine with sunlight to form ozone. Ozone can be beneficial or harmful depending on its location.
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 as a consequence of vehicular emissions.
Jun 25, 2024 · Household combustion devices, motor vehicles, industrial facilities and forest fires are common sources of air pollution. Pollutants of major public health concern include particulate matter, carbon monoxide, ozone, nitrogen dioxide and sulfur dioxide.
What is smog and how can it be prevented? - BBC Science Focus Magazine.
Oct 31, 2023 · Smog (sometimes referred to as ground-level ozone) occurs when emissions from combusting fossil fuels react with sunlight. Soot—a type of particulate matter—is made up of tiny particles of...
Mar 3, 2019 · The formation of smog is hazardous to your health especially if you live in a big sunny city. Find out now how smog is formed and how you can protect yourself. The sun gives us life. But it also can cause lung cancer and heart attacks as it is a primary factor in creating smog. Learn more about this hazard.
