Who Has Coined The Word Smog? In 1905, the English term smog was coined by Dr. Henry Antoine Des Voeux in his paper, “Fog and Smoke” for a meeting of the Public Health Congress in London[1]. When was the term smog first used? The term “smog” was first used in the early 1900s to describe
How Thick Is The Asian Brown Cloud? Viewed from satellite photos, the cloud appears as a giant brown stain hanging in the air over much of South Asia and the Indian Ocean every year between January and March, possibly also during earlier and later months. Can the Asian Brown Cloud be seen from space? Viewed
What Are The Different Types Of Smog? At least two distinct types of smog are recognized: sulfurous smog and photochemical smog. Sulfurous smog, which is also called “London smog,” results from a high concentration of sulfur oxides in the air and is caused by the use of sulfur-bearing fossil fuels, particularly coal. What are the
What Type Of Chemical Reaction Is Smog? Smog is formed when sunlight interacts with hydrocarbons and nitrogen oxides released into the air by cars and power plants. A highly reactive compound of oxygen and hydrogen called a hydroxyl radical kick starts that reaction. Sinha’s paper focuses on this hydroxyl radical, known as OH. What is
What Are Characteristics Of Urban Areas With High Levels Of Photochemical Smog? Photochemical smog, which is also known as “Los Angeles smog,” occurs most prominently in urban areas that have large numbers of automobiles. It requires neither smoke nor fog. This type of smog has its origin in the nitrogen oxides and hydrocarbon vapours emitted
What Are The Harmful Effects Of Photochemical Smog? It corrode metals, stones, rubber and painted surface. It causes serious health problems to senior citizens, children and people with heart and lung problems which lead to emphysema, bronchitis, asthma. What are the harmful effects of photochemical smog and how can they be controlled? At higher concentrations,
What Are The Two Types Of Smog? At least two distinct types of smog are recognized: sulfurous smog and photochemical smog. Sulfurous smog, which is also called “London smog,” results from a high concentration of sulfur oxides in the air and is caused by the use of sulfur-bearing fossil fuels, particularly coal. What is the
What Is A Major Contributor To Smog? Air pollution emitted from transportation contributes to smog, and to poor air quality, which has negative impacts on the health and welfare of U.S. citizens. Pollutants that contribute to poor air quality include particulate matter (PM), nitrogen oxides (NOx), and volatile organic compounds (VOCs). What are the three
What Is Smog In Simple Words? 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 cities today. Today, most of
What Is Smog Made Of? Nitrogen oxides come from car exhaust, coal power plants, and factory emissions. VOCs are released from gasoline, paints, and many cleaning solvents. When sunlight hits these chemicals, they form airborne particles and ground-level ozone—or smog. What is the mixture of smog? Smog is a form of air pollution. The word