Causes of air pollution

Below are the introductions of major pollutants from industry, domestic and transportation. View air pollution glossary

Historically, the major air pollution problems in industrialized countries and rapidly developing countries is the release of high levels of fumes and sulfur dioxide from the combustion of sulfur-containing fuels such as domestic and industrial coal It was. Today, the main threat to clean air is now caused by traffic emissions. Gasoline and diesel engines emit various pollutants such as carbon monoxide (CO), nitrogen oxide (NOx), volatile organic compounds (VOC), and particulate matter (PM10). its big. In addition, pollutants from these sources are not only problematic near these sources but can also be transported over long distances.

The photochemical reaction between nitrogen dioxide (NO 2) and VOC normally released from road vehicles by sunlight leads to the formation of ozone. Ozone is a secondary pollutant and tends to affect rural areas far away from the original discharge site due to long-distance transport.

In addition to the worst case scenario, industrial and domestic pollution sources and their impact on air quality are stable or tend to improve over time. However, traffic pollution problems around the world are getting worse

Due to the potential impact they have on human health, welfare and the natural environment, the environmental concentration of these pollutants is continuously measured in rural and urban areas throughout the UK.

Today, humans are exposed to various air pollution. Therefore, it is affected by pollutants in the atmosphere. There are many reasons for air pollution. One of the main causes of air pollution is car traffic. Fuel is used in cars, buses, trucks, motorcycles, scooters, rickshaws. Combustion of automobile fuel results in the emission of toxic compounds including toxic gases and particulate matter. Harmful gases that are part of the exhaust gas include hydrocarbons, nitrogen oxides, carbon monoxide and sulfur dioxide.

In order to clarify the cause of air pollution, it is important to study the type of air pollutants in detail. Air pollutants can be caused by secondary and primary pollution sources. If the process directly leads to pollution, this is the main cause. For example, sulfur dioxide emitted from factories is the main cause of air pollution. Reactions and interactions between the main sources form secondary pollutants. For example, mixing of major contaminants forms smoke as secondary pollutants

In order to understand the cause of air pollution, it can be divided into several departments. Main pollution sources or indirect pollution sources are mainly air pollutants. Contaminants produced directly by this process are sometimes referred to as major pollutants. Combustion of fossil fuels: Sulfur dioxide from combustion of fossil fuels such as coal and oil and other plant inflammables is one of the main causes of air pollution. Contamination from vehicles such as trucks, jeeps, cars, trains, airplanes, etc. can cause great pollution. We rely on them to meet the needs of our daily basic transportation. However, since dangerous gases may contaminate the environment, excessive use may adversely affect the environment.