nitrogénoxidemisszió

Nitrogénoxidemisszió refers to the release of nitrogen oxides into the atmosphere. These are a group of gases composed of nitrogen and oxygen, commonly referred to as NOX. The most prevalent forms are nitric oxide (NO) and nitrogen dioxide (NO2). These emissions are primarily generated from anthropogenic sources, with the combustion of fossil fuels being the dominant contributor. Major sources include vehicle exhausts from cars, trucks, and buses, as well as emissions from power plants and industrial boilers. Natural sources also exist, such as lightning and microbial activity in soils, but their contribution is generally less significant in areas with high human activity.

Nitrogénoxidemisszió plays a significant role in environmental issues. In the atmosphere, NOX contributes to the formation of ground-level ozone, a major component of smog, which can have detrimental effects on human respiratory health and damage vegetation. Furthermore, NOX is a precursor to acid rain when it reacts with water, oxygen, and other chemicals in the atmosphere, leading to acidification of lakes, rivers, and soils. It also contributes to the formation of particulate matter, which can exacerbate respiratory and cardiovascular problems. Regulations and technological advancements, such as catalytic converters in vehicles and flue-gas desulfurization in power plants, aim to reduce these emissions.