Air pollution does have a serious impact on human respiratory health. Major air pollutants include particulate matter (PM2.5 and PM10), sulfur dioxide, carbon monoxide, ozone and nitrogen oxides. These pollutants can cause or worsen respiratory diseases such as asthma, chronic obstructive pulmonary disease (COPD) and lung cancer.

Long-term exposure to polluted air, especially fine particulate matter (PM2.5), can lead to decreased lung function, increase the risk of respiratory diseases, and may also affect heart health. Children, the elderly and people with existing health problems are especially vulnerable to the effects of air pollution.

In response to this problem, many countries and regions are taking measures to reduce air pollution, such as implementing stricter emission standards, promoting the use of renewable energy, improving transportation systems to reduce tailpipe emissions, and encouraging the public to take measures to reduce personal exposure to pollution Behaviors in the air, such as reducing outdoor activities when air quality is poor.