Air Pollution

Ammonia is a common air pollutant emitted from agricultural activities, particularly livestock farming, and can contribute to poor air quality and environmental problems such as eutrophication.

Nitrogen dioxide is a common air pollutant emitted from household activities that involve burning fossil fuels, such as cooking and heating, and can contribute to indoor and outdoor air pollution.

Sulfur dioxide is a common air pollutant emitted from industrial processes that involve burning sulfur-containing fuels or processing sulfur-containing materials, such as metal smelting and refining.

Coal combustion is the primary source of air pollution in power plants, releasing pollutants such as sulfur dioxide, nitrogen oxides, and particulate matter.

Sulfur dioxide is the primary pollutant responsible for acid rain, which occurs when sulfur dioxide and nitrogen oxides react with water vapor in the atmosphere.

Flue gas desulfurization is the primary technology used to control sulfur dioxide emissions from power plants, which involves removing sulfur dioxide from the flue gases using a sorbent such as limestone or lime.

Selective catalytic reduction is the primary technology used to control nitrogen oxide emissions from power plants, which involves reducing nitrogen oxides to nitrogen and water vapor using a catalyst.

Electrostatic precipitators are the primary technology used to control particulate matter emissions from power plants, which involve using an electric field to charge and collect particulate matter from the flue gases.

Electrostatic precipitators are used to collect particulate matter from flue gases, which are solid particles such as ash and dust that are released during the combustion process.

Activated carbon injection is the primary technology used to control mercury emissions from power plants, which involves injecting activated carbon into the flue gases to adsorb mercury.

Selective catalytic reduction is a technology used to remove nitrogen oxides from flue gases in power plants by converting them into nitrogen and water vapor using a catalyst.

Diesel-powered trucks emit significant amounts of particulate matter, nitrogen oxides, and other pollutants, contributing to air pollution in urban environments.

Vehicle exhaust emissions, particularly from cars, trucks, and buses, are the main source of air pollution from transportation, releasing pollutants such as carbon monoxide, nitrogen oxides, and hydrocarbons.

Sulfur dioxide is primarily emitted by industrial activities and power plants, not by vehicles.

Photochemical smog is formed when sunlight reacts with nitrogen oxides and hydrocarbons emitted by vehicles, leading to the production of ozone and other pollutants.