Inhalation of which substance may lead to chronic airway resistance?

Inhalation of sulfur dioxide can lead to chronic airway resistance primarily due to its irritating effects on the respiratory system. Sulfur dioxide is a colorless gas with a strong, pungent odor, produced from the burning of fossil fuels and other industrial processes. When inhaled, it can cause inflammation and irritation in the airways, which may lead to the development of chronic conditions such as asthma or chronic obstructive pulmonary disease (COPD).

Repeated exposure to sulfur dioxide can aggravate existing respiratory diseases, making it more difficult for individuals to breathe and increasing airway resistance over time. This inflammation can result in structural changes in the airways, contributing to chronic bronchitis or other long-term respiratory issues.

Understanding the mechanisms of different air pollutants helps highlight the particular risks associated with sulfur dioxide and its role in inducing chronic respiratory problems, thus highlighting its significant impact on air quality and public health.