Part of the San Joaquin Valley Air Pollution Control District, this diverse region faces persistent air pollution challenges from agriculture, transportation, industrial facilities, and pesticide use. Many residents experience health impacts like asthma and cardiovascular disease at rates above state averages, with children and older adults particularly vulnerable.

The county has teamed up with Aclima and the California Air Resources Board (CARB) to launch a community air monitoring project guiding future actions as a part of SMMI. Using Aclima’s advanced sensors, the project collects detailed, block-by-block data on air quality throughout the community. This provides residents with clear information about local pollution and helps guide actions to improve air quality, focusing on the areas and people most affected. 

In April of 2025, residents and stakeholders gathered to discuss these ongoing air quality concerns and work toward healthier, more equitable neighborhoods.