What is nitrogen oxide pollution


Nitrogen oxides (NOx) are a group of compounds composed of nitrogen and oxygen, including nitric oxide (NO) and nitrogen dioxide (NO2). In addition to its own harmful effects, NOx is also an important precursor to pollutants such as ozone and PM2.5, and is one of the key challenges in air pollution control.

Sources of NOx

The main sources of NOx include natural and anthropogenic sources. Natural sources mainly include lightning, soil microbial activity and volcanic eruptions. However, anthropogenic sources are the main cause of increased NOx concentrations in the atmosphere. These sources include:

Transportation: emissions from vehicles such as cars, trucks, airplanes, and ships contain significant amounts of NOx.

Industrial Emissions: Thermal power plants, chemical plants, steel mills, and other industrial facilities produce NOx when they burn fossil fuels or undergo chemical reactions.

Agricultural activities: Nitrogen oxides are also released from farmland and animal feedlots that use nitrogen fertilizers.


Hazards of nitrogen oxides

Nitrogen oxides are very harmful to human health and the environment. The following are its main hazards:

Hazards to human health: NOx can irritate the respiratory tract, causing symptoms such as coughing, difficulty breathing and chest pain. Long-term exposure to high levels of NOx also increases the risk of heart disease and lung cancer.

Hazards to the environment: NOx is one of the main causes of acid rain, which can damage forests, lakes and crops. In addition, NOx reacts with other compounds in the atmosphere to form photochemical smog and ozone, all of which can have a serious impact on air quality.

How to Reduce NOx Emissions

To reduce the emission of nitrogen oxides, we need to monitor the concentration of nitrogen oxides first, Fosensor recommends using Nitrogen dioxide sensor FS01901 to monitor the concentration of nitrogen oxides, and through the monitored concentration to formulate a program to reduce nitrogen oxides emissions, we need to start from the following aspects under normal circumstances:

Improve the energy structure: vigorously develop clean energy, such as wind energy, solar energy and hydroelectric energy, to reduce the dependence on fossil fuels. At the same time, improve the efficiency of energy utilization and reduce energy consumption.

Strengthen traffic management: Promote the use of low-carbon travel modes such as public transportation, cycling and walking, and reduce the use of private cars. At the same time, encourage the use of new energy vehicles, such as electric vehicles and hydrogen fuel cell vehicles.

Industrial emission reduction: Strengthen industrial pollution control, adopt advanced cleaner production technologies and equipment, and reduce the concentration of nitrogen oxides emitted by industries. At the same time, increase penalties for illegal emissions and raise the environmental awareness of enterprises.

Agricultural emissions reduction: rational application of nitrogen fertilizer, improve the efficiency of nitrogen fertilizer utilization. Promote eco-agriculture and organic agriculture and other environmentally friendly agricultural models to reduce environmental pollution from agricultural activities.

Enhance public awareness of environmental protection: Strengthen environmental protection publicity and education to raise public awareness of the hazards of nitrogen oxides and environmental protection. Encourage the public to actively participate in environmental protection actions, such as green travel and garbage classification.


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