Key facts
- Wildfire smoke is reversing over a decade of US smog reduction progress.
- The study attributes this reversal to larger and more frequent wildfires.
- The EPA is responsible for setting and enforcing air quality standards.
A recent study has revealed that smoke emanating from larger wildfires is significantly impacting air quality in the United States. This phenomenon is reportedly reversing more than a decade's worth of improvements in reducing smog. The findings suggest that the increasing scale and frequency of wildfires are posing a substantial challenge to efforts aimed at achieving cleaner air across the nation. The Environmental Protection Agency (EPA) has been working to set and enforce air quality standards, but the pervasive effects of wildfire smoke present a new hurdle.
Smog is a type of air pollution that reduces visibility and can cause respiratory problems. It is often a combination of smoke and fog, or industrial emissions and vehicle exhaust. Wildfires release large amounts of smoke containing particulate matter, carbon monoxide, and other harmful pollutants into the atmosphere, which can travel long distances and degrade air quality. The EPA sets national air quality standards and oversees state and local efforts to implement these standards, aiming to protect public health and the environment from air pollution.