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Nitrogen Dioxide (NO2) – Effects And Solutions

Knowing how nitrogen dioxide (NO2) harms the environment and your health may save your life. Let's look at some bad effects and solutions to deal with them.

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Nitrogen dioxide is now widely utilized in industrial fields, particularly in the food processing industry. However, it has a negative impact on the environment, as well as on human health and life.

Let’s figure out some detrimental effects of this toxic gas and find out useful solutions to deal with it.

What Is Nitrogen Dioxide (NO2)?

Nitrogen dioxide (NO2) is a chemical gas soluble in water. Coming with a reddish-brown color under high temperatures, it is one of the numerous nitrogen oxides (NO) and has a strong oxidant. Manufacturers use it as an intermediary in producing nitric acid and fertilizers.

This gas is formed through the combustion of nitric oxide in burning processes. This procedure can be diesel, fuel, gasoline, wood-burning, or garbage treatment. It is considered a gaseous air pollutant and can be lethal if people inhale in large amounts.

Industrial emissions contain NO2
Industrial emissions contain NO2

Sources Of Nitrogen Dioxide (NO2) 

What causes nitrogen oxide? NO2 emissions primarily come from human activities such as burning coal, oil, gas, or diesel at high temperatures. 

The emissions from vehicles and industries are typical sources of this toxic gas. It can also be found in refining petroleum and metals processes.

NO2 indoor emissions were generated during the combustion process with oil stoves and gas-fired appliances. Coal, wood, and gas are the main fuel sources to operate this equipment. This gas is also produced by combustion devices that are not correctly aired or fitted in-house.

Nitrogen oxides could be produced through natural sources like lightning or volcanic action. Volcanoes release significant amounts of nitrogen into the atmosphere. It happens when a soil block is submerged or pulled down underneath the earth’s crust.

Effects Of Nitrogen Dioxide 

Is no2 bad for you? Yes. This toxic gas is harmful to both human health and the environment.

Health Effects

The health effects of nitrogen dioxide can be a range of adverse problems on the respiratory system, especially the lungs. Coughing, difficulty breathing, low blood pressure, and nausea are the most prevalent symptoms of NO2 short-term effects.

Nitrogen dioxide health effects in the long-term may aggravate respiratory diseases. These illnesses include asthma, bronchitis, or chronic lung illnesses. People have to suffer some attacks related to irritation and inflammation of the respiratory tract. Prolonged pains can be life-threatening.

People with asthma have to suffer from the respiratory system’s inflammation and pain. Nitrogen dioxide exposure can exacerbate or intensify asthma symptoms. It’s even more harmful, especially for those who smoke or are exposed to NO2 through tobacco smoke.

NO2 exposure causes irreversible damages to the lungs and raises the risk of cardiovascular disease. Moreover, it may reduce the birth rate and negatively affect infants’ nervous systems. It also increases the likelihood of early mortality.

NO2 ppm safe levels are one to three ppm for recommended airborne exposure. Long-term exposure to this toxic gas can lead to different Dyson NO2 levels. 

Environment Effects

NO2 contributes to environmental pollution and ecosystem damage. Acid rain is one of the sources of NO2 that harms the environment. This gas is converted to nitric acid in the atmosphere, which then sinks into the soil as acid rain, causing the acidification of habitats.

The substance is also the main pollutant implicated in tropospheric ozone generation. It happens when sunlight stimulates its photolysis. It also contributes to the formation of fog and damages the environment.

Air and water also become polluted due to the excess NO2. Nitrogen dioxide toxicity will poison the nutrient source of aquatic plants such as seaweed or coral. 

The ecosystem will be deteriorated in terms of species reproductive capacity due to NO2 pollution. Nitrogen dioxide building up in the bodies of animals or plants for a long time will force their bodies to die. 

NO2 from wood smoke
NO2 from wood smoke

How To Keep Your Home From Nitrogen Dioxide?

How to remove nitrogen dioxide from the air? One of the main ways is regularly releasing the combustion of indoor equipment to the outside. Besides, you should schedule annual maintenance to ensure that these devices are in good operating order.

Keeping your home clean also helps to reduce NO2 exposure. Regular cleaning utensils and home appliances are essential, especially stoves or gas-fired equipment. It can help to remove nitrogen dioxide from gas stoves and other devices.

Heating systems that emit a lot of NO2 inside should be placed where there is enough circulation. It can help to avoid toxic levels of this gas forming. Therefore, you should often keep the ventilation systems open. Ensure your gas stoves are certified to be a safe size for indoor use.

Saving energy at home is a useful way to prevent indoor pollutants. You should turn  combustion devices off to limit nitrogen dioxide emissions.

Fuel in vehicle engines is also a source of this gas in the home. Therefore, it is advisable to use public transport or cycle instead of driving. Furthermore, the fuel cap should be tightened to avoid spilling or leaking fuel.

NO2 from vehicle smoke
NO2 from vehicle smoke


Nitrogen dioxide is a toxic gas, harmful to the environment and human health. Exposure to it can cause many problems with the human respiratory and cardiovascular system. 

Through this article, I believe that you can get an overview of nitrogen dioxide pollution and poisoning. You can take the measures above to avoid exposure to this gas. Thank you for taking the time to read this article. See you soon in the next post!


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