What effect do particulates have on the respiratory system?

Particulates in the air are tiny solid or liquid substances suspended in the atmosphere, and when inhaled, they can cause significant harm to the respiratory system. The correct choice highlights that these particulates can lead to respiratory problems, such as chronic bronchitis, asthma attacks, and decreased lung function.

Moreover, long-term exposure to particulate matter has been linked to an increased risk of developing lung cancer. This is due to the fact that many of these particles can carry toxic substances that, when absorbed by lung tissue, can initiate cellular changes leading to cancer.

In contrast, enhanced lung capacity or improved air quality would not be associated with particulates, as they are generally pollutants. The idea that they contribute to immune system health also does not align with scientific findings, which typically show that harmful particulates have adverse effects on health. Overall, the evidence clearly indicates that particulates are a health risk, particularly concerning the respiratory system.