Human activities, such as burning fossil fuels for transportation, electricity generation, and industrial processes, are the primary cause of air pollution.

Particulate matter, which consists of small particles of solid or liquid matter suspended in the air, is the most harmful air pollutant to human health. It can cause a variety of health problems, including respiratory and cardiovascular disease, and can even lead to premature death.

Air pollution can contribute to emergency room visits by triggering asthma attacks and other respiratory problems, increasing the risk of heart attacks and strokes, and leading to premature birth and low birth weight.

Children, older adults, and people with heart or lung disease are all more vulnerable to the health effects of air pollution.

Reducing our reliance on fossil fuels, investing in renewable energy sources, and improving energy efficiency are all important steps that can be taken to improve air quality.