PM2.5 particles from wildfire smoke are linked to a range of health problems, including asthma, bronchitis, and heart disease. Studies have shown that exposure to these particles can have lingering effects, sometimes lasting months or even years. Vulnerable populations, such as children, the elderly, and those with pre-existing conditions, are particularly at risk. Prolonged exposure can also contribute to a slowdown in mortality improvement, highlighting the need for effective air quality management.