Community Air Monitoring

Monitoring air quality plays a key role in supporting actions to understand current air quality, as well as reduce harmful emissions and exposure to air pollution.

In support of the Community Air Protection Program (CAPP or AB 617), a statewide program to reduce pollution exposure in communities most impacted by air pollution, the San Diego County Air Pollution Control District (SDAPCD) Community Air Monitoring Team operates additional air quality monitors in two San Diego communities heavily burdened by air pollution, the Port-adjacent, Portside Community and the U.S. - Mexico Border adjacent International Border Community. Hourly air quality readings taken in these two communities are available on the Community Real-time Air Quality page.
County-wide, regional monitoring network readings can be found on the Regional Real-time Air Quality map.

As part of SDAPCD's response to odors impacting South Bay residents, the Community Monitoring team monitors Hydrogen Sulfide (H2S) in the International Border Community. Hydrogen sulfide (H2S) is a colorless gas with a pungent odor that resembles a “rotten egg” smell. Hourly Hydrogen Sulfide (H2S) readings are available on the Tijuana River Valley Air Monitoring webpage. 

CM network data vs. Regional network data