Particulate matter is particularly harmful to which group of individuals?

Particulate matter is particularly harmful to people with respiratory issues due to the way these individuals' bodies react to airborne pollutants. For those who already suffer from conditions such as asthma, chronic obstructive pulmonary disease (COPD), or other respiratory ailments, inhalation of particulate matter can exacerbate their symptoms, leading to increased difficulty in breathing, potential exacerbation of existing conditions, and even hospitalizations. The fine particles can penetrate deep into the lungs and enter the bloodstream, causing inflammation and other serious health effects.

While other groups, such as children under five or healthy adults, can also be affected by particulate matter, individuals with pre-existing respiratory conditions are at a higher risk of significant adverse health outcomes due to their compromised respiratory systems.