Nitrogen dioxide poisoning

Editor-In-Chief: Prab R Tumpati, MD
Obesity, Sleep & Internal medicine
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W8MD medical weight loss NYC and sleep center NYC

Nitrogen dioxide poisoning
Synonyms	N/A
Pronounce	N/A
Specialty	N/A
Symptoms	Cough, shortness of breath, chest pain, pulmonary edema
Complications	Chronic lung disease, bronchiolitis obliterans
Onset	Immediate or delayed
Duration	Variable
Types	N/A
Causes	Inhalation of nitrogen dioxide
Risks	Industrial exposure, agricultural exposure, indoor air pollution
Diagnosis	Clinical assessment, chest X-ray, pulmonary function test
Differential diagnosis	Asthma, chronic obstructive pulmonary disease, pneumonia
Prevention	Use of protective equipment, ventilation
Treatment	Oxygen therapy, bronchodilators, corticosteroids
Medication	N/A
Prognosis	Variable, depends on exposure level and duration
Frequency	Rare
Deaths	N/A

Tropospheric nitrogen dioxide column observed by Aura OMI

Nitrogen dioxide poisoning

Nitrogen Dioxide Poisoning is a form of toxic injury caused by the inhalation of nitrogen dioxide (NO2), a toxic, reddish-brown gas with a characteristic sharp, biting odor. Nitrogen dioxide is a significant air pollutant responsible for the formation of smog, acid rain, and is a byproduct of combustion processes in vehicles and power plants. Exposure to high levels of NO2 can lead to serious health issues, particularly affecting the respiratory system.

Causes

Nitrogen dioxide poisoning can occur in both indoor and outdoor environments. Major sources include:

• Combustion of fossil fuels in vehicles, power plants, and industrial processes
• Use of gas stoves, heaters, and kerosene heaters without proper ventilation
• Agricultural and industrial exposure to high levels of NO2 from the use of explosives or welding

Symptoms

The symptoms of nitrogen dioxide poisoning vary depending on the duration and intensity of exposure. Short-term exposure can lead to:

• Irritation of the eyes, nose, throat, and respiratory tract
• Cough, shortness of breath, and chest pain
• Increased risk of respiratory infections

Long-term exposure may result in more severe conditions such as:

• Chronic bronchitis
• Pulmonary edema
• Asthma exacerbation
• Increased susceptibility to infections

Diagnosis

Diagnosis of nitrogen dioxide poisoning involves a thorough medical history, including occupational and environmental exposure, and clinical examination. Pulmonary function tests and blood tests may be conducted to assess the extent of lung damage and to rule out other conditions.

Treatment

Treatment for nitrogen dioxide poisoning primarily focuses on removing the individual from the source of exposure and providing supportive care. In cases of severe exposure:

• Oxygen therapy may be necessary to help alleviate hypoxia.
• Bronchodilators and corticosteroids may be prescribed to reduce inflammation and ease breathing.
• In cases of pulmonary edema, more intensive treatments such as mechanical ventilation may be required.

Prevention

Preventing nitrogen dioxide poisoning involves controlling emissions and reducing exposure. Strategies include:

• Using electric or induction stoves and heaters instead of gas-powered equipment.
• Ensuring proper ventilation in areas where combustion appliances are used.
• Monitoring air quality reports and limiting outdoor activities when NO2 levels are high.
• Advocating for and supporting policies that reduce emissions from vehicles and industrial sources.

See Also

• Air pollution
• Occupational safety and health
• Environmental health
• Respiratory disease

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