EPA has programs and activities aimed at ensuring the nation can attain and maintain safe outdoor and indoor air quality. To accomplish this, EPA sets regulatory standards, develops voluntary programs, provides guidance, and shares technical knowledge.  However, climate change is complicating a number of these efforts, thereby threatening public health.

Outdoor air quality

Outdoor air quality: Warming temperatures complicate efforts of many communities to attain and maintain ground-level ozone air quality standards. More frequent and extreme droughts may result in additional wildfires. Each of these climate impacts can adversely affect public health.

Indoor air quality

Indoor air quality: More frequent and intense storms increase the likelihood that flooding and/or conditions favorable to molds may occur. These conditions have the ability to increase or worsen public health.