research studies on NO2

Research on nitrogen dioxide (NO₂) examines how this pollutant, mainly from vehicle emissions and industrial activities, impacts health and the environment. Studies show that higher NO₂ levels can irritate the lungs, worsen respiratory diseases like asthma, and reduce lung function, especially in children and vulnerable populations. Long-term exposure is linked to increased risk of respiratory infections and chronic diseases. NO₂ also contributes to the formation of ground-level ozone and particulate matter, which further harm air quality. These findings highlight the importance of monitoring and regulating NO₂ emissions to protect public health and maintain clean air.