Tag: air pollution - effects and control

Smog is a portmanteau of the words smoke and fog, describing a type of intense air pollution.

Silicosis is an occupational lung disease caused by inhalation of crystalline silica dust, which is common in pottery and mining industries.

Smog is formed when fog is mixed with smoke. The presence of unburnt hydrocarbons in air when mixed with condensed water vapour forms a thick layer called smog. It lowers the visibility during winters and is an indication of air pollution.

Smoke released from various sources may get mixed with dust particles and small drops of fog to produce what is called smog.

Photochemical smog is formed when nitrogen oxides and volatile organic compounds react in the presence of sunlight.

Cement factory workers are exposed to dust containing silica and other minerals, leading to respiratory conditions often referred to as cytosilicosis or similar dust-related lung diseases.

Reducing smog, also known as sulfurous smog or London smog, is characterized by high concentrations of sulfur dioxide and particulate matter.

Smog contains harmful particulates and gases that irritate the respiratory tract, leading to breathing difficulties and other lung-related issues.

Physical pollutants include heat, sound, and radiation. Soot is a particulate matter, which is classified as a chemical or physical particulate pollutant, but in many contexts, it is distinguished from pure physical energy pollutants.