Lead Contamination

California Department of Public Health Childhood Lead Information

  • The City of Santa Ana is working with the County’s Health Care Agency and their selected contractor Azure Community Development to offer a lead testing and abatement program available to 25 of Santa Ana’s households. More information about this new program is coming soon.
  • California’s Progress in Preventing and Managing Childhood Lead Exposure – The California Department of Public Health has prepared this update using data from 2020. Page 16 and 17 of this document references Santa Ana Zip Codes (92701, 92703, and 92707) in Table 5. a Percent of Children with a Blood Lead Level (BLL) of 4.5 µg/dL or Greater, by ZIP Code, 2020 https://www.cdph.ca.gov/Programs/CCDPHP/DEODC/CLPPB/CDPH%20Document%20Library/CLPPBReport2022.pdf

UCI Studies conducted in Santa Ana

Please refer to the the studies below to get a better understanding on lead soil and other lead-related contamination in Santa Ana.

  • November 15, 2022: Social and spatial distribution of soil lead concentrations in the City of Santa, California: Implications for health inequities.
  • September 2022: Use of historical mapping to understand sources of soil-lead contamination: Case study of Santa Ana,
  • July 11, 2022: Maps tie Santa Ana’s contaminated soil to car pollution 100 years ago.
  • June 28, 2022: Based on archival documents such as maps and newspapers, two potential sources of lead from past years seem likely — lead-based paint and leaded gasoline with the gasoline far more prevalent in Santa Ana.
  • June 22, 2022: Two recent studies conducted by researchers at the UCI have shown a strong correlation between lead concentrations in the soil and historical vehicle emissions, specifically in urban, disadvantaged neighborhoods across Santa Ana.
  • June 10, 2022: Use of Radioisotope Ratios of Lead for the Identification of Historical Sources of Soil Lead Contamination in Santa Ana, California.


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