(1) Determine key linkages among human health, sociodemographics, and environmental exposure for residents of Kettleman City, CA. (2) Characterize presence and concentrations of environmental exposure through collection and analysis of both environmental, i.e. household water and ambient air, and biological samples, i.e. blood, from households and residents respectively. (3) Apply this community-based participatory science as a model for other affected communities to better inform socio-environmental decision-making and policy.