nitrogen oxides (NOx)

Nitrogen oxides (NOx) are a group of gas pollutants that include nitric oxide (NO) and nitrogen dioxide (NO2). They primarily form when fossil fuels are burned at high temperatures, such as in vehicles and power plants. NOx contributes to air pollution, creating smog and acid rain, which can harm human health and the environment. Exposure to NOx can lead to respiratory problems and exacerbate conditions like asthma. Reducing NOx emissions is essential for improving air quality and protecting public health, and various regulations aim to limit their release into the atmosphere.