The Data Explorer displays data on health outcomes and environmental exposures in California. You can search for a topic and interact with the data through visualizations like maps, charts, time trends and tables.
User Guide
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Topics
learn more about the health and environmental topics
Topics and data available on the data explorer
Topics | Measures | Geographies | Categories | Years | Source |
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Air Quality | Concentrations and regulatory exceedances of ozone and particulate matter (PM2.5) | County | Annual average concentration, exceedance days | 2010-2022 | U.S. Environmental Protection Agency |
Asthma | Emergency department visits and hospitalizations, prevalence, deaths, and insurers | County, Zip Code | Age, Race/Ethnicity, Sex | 2000-2022 | California Department of Health Care Access and Information |
Birth Defects | Number of cases | County | Age, Race/Ethnicity, Sex | 2000-2018 | California Department of Public Health's Genetic Screening Program |
Cancer | Number of Cases | County | Age, Sex | 1999-2018 | California Cancer Registry |
Carbon Monoxide (CO) Poisoning | Emergency department visits and hospitalizations | County | Age, Race/Ethnicity, Sex | 2000-2020 | California Department of Health Care Access and Information |
Childhood Lead Poisoning | Number of children with elevated blood lead levels | County | Age | 2007-2021 | California Department of Public Health Childhood Lead Poisoning Prevention Branch |
Chronic Obstructive Pulmonary Disease (COPD) | Emergency Department visits and hospitalizations | County | Age, Race/Ethnicity, Sex | 2000-2022 | California Department of Health Care Access and Information |
Heat-Related Illnesses and Deaths | Emergency department visits and hospitalizations | County | Age, Race/Ethnicity, Sex | 2000-2022 | California Department of Health Care Access and Information |
Heart Attacks | Emergency department visits and hospitalizations | County | Age, Race/Ethnicity, Sex | 2000-2022 | California Department of Health Care Access and Information |
Maternal and Infant Health | Number of cases of preterm birth, low birth weight, and other maternal and infant health outcomes | County, Census Tracts | Race/Ethnicity | 1997-2018 | Birth Statistical Mater Files and Birth Cohort Files from the State of California, Department of Public Health, Office of Vital Statistics |