: Air pollution can be caused by a variety of factors, many of which have dire consequences for our health. For instance, the recent series of wildfires across the country has led to unhealthy air quality that can trigger allergies, asthma, and other respiratory problems. Moreover, emissions from factories and cars, as well as the burning of fossil fuels like oil or coal, are also major contributors to air pollution. Even seemingly harmless household activities can release pollutants into the air we breathe. See omnystudio.com/listener for privacy information.