Researchers have long linked asthma— a serious and life threatening chronic respiratory disease that affects the quality of life of more than 23 million Americans— with exposure to air pollution. Air pollution can make asthma symptoms worse and trigger asthma attacks.

What type of pollution causes asthma?

Airborne particles

Other forms of air pollution may also trigger your asthma. Small particles in the air can pass through your nose or mouth and get into your lungs. Airborne particles, found in haze, smoke and airborne dust, present serious air quality problems.

Can asthma be caused by environment?

Environmental Factors and Asthma

Environmental factors such as pollution, sulfur dioxide, nitrogen oxide, ozone, cold temperatures, and high humidity are all known to trigger asthma in susceptible individuals. In fact, asthma symptoms and hospital admissions are greatly increased during periods of heavy air pollution.