South Merced is a vibrant and diverse community located in the southern part of the City of Merced, within Merced County and the San Joaquin Valley Air Pollution Control District. Home to a predominantly BIPOC population, South Merced reflects a rich mix of cultures and backgrounds.

The community faces significant air quality challenges, with high levels of fine particulate matter, diesel pollution, ozone, and exposure to pesticides, largely due to nearby industrial zones, highways, and agricultural activity. These pollution burdens contribute to elevated rates of asthma and cardiovascular disease, particularly impacting children and low-income families.

The district 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 2025, residents, local organizations, and project partners came together to discuss air quality concerns, help shape the Community Air Monitoring Plan, and explore solutions for a healthier and more equitable future in South Merced.