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 [1] to refer to smoky fog due to its opacity, and odour. [2]

Oct 22, 2024 · A combination of liquid and solid fog and smoke particles is described by the smog. Typically, it appears as a ceiling or suspended layer of yellowish or blackish fog that hangs in the air.

Aug 20, 2024 · Smog is a term used to describe a mixture of pollutants, primarily consisting of smoke, fog, and chemical fumes, that lingers in the air. It is often associated with urban areas and is characterized by a hazy appearance and an unpleasant smell.

Feb 20, 2025 · Photochemical smog, which is also known as “Los Angeles smog,” occurs most prominently in urban areas that have large numbers of automobiles, and it requires neither smoke nor fog.

Fog and smog are also distinct because they have different impacts with fog primarily affecting people's visibility while smog has a major effect on people's health. The main impact of fog is that it results in reducing visibility.

Oct 1, 2024 · 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.

It is usually seen as yellowish or blackish fog, which remains suspended in the atmosphere or forms a ceiling in the air. It happens when fumes, emissions, and particulates (nitrogen and sulfur oxides and volatile organic compounds) react in the presence of …

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.

Sep 28, 2023 · Smog is the term used to describe the mixture of smoke and fog. It is a type of intense air pollution. The term smog is not old; it was coined in the early 19th century to refer to smoky fog due to its opacity and odour in London.

Smog 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.