California Air Resources Board

Air Monitoring Data Websites

AQview: Community Air Quality Viewer: Air quality data maps and trends from government and community-led air monitoring. 

PurpleAir Air Sensor Map: Hyper-local community-collected particle pollution (PM 2.5) data.

EPA Fire and Smoke Map: Provides active fire locations and air quality index (AQI) from multiple sensor types.

Cumulative Health and Exposure Screening Tools

CalEnviroScreen 4.0 | OEHHA: Environmental Health Screening Tool helps identify disproportionately burdened communities.

CalEnviroScreen 10th Anniversary (arcgis.com): History of the groundbreaking Environmental Justice mapping tool.

Healthy Place Index (HPI) (healthyplacesindex.org): Maps data on social conditions that drive health like education, job opportunities, clean air and water.

EJScreen: Environmental Justice Screening and Mapping Tool: U.S. EPA Environmental Justice mapping tool combines environmental and demographic indicators.

Air Pollution Emission Inventory Tools

CARB Pollution Mapping Tool | California Air Resources Board: Air pollution emissions data for criteria air pollutants toxic air contaminants, and greenhouse gases from large facilities.

Community Air Monitoring Systems and Information

Pollution and Prejudice (arcgis.com): Redlining and environmental injustice in California.

Brightline Making Strides in Air Quality Equity — Brightline Defense: A youth-partnered initiative in San Francisco.

SJVAir:  Operated by non-profit organizations, providing a network of low-cost air quality monitors with real-time PM2.5 data.

Air Rangers - Air Quality Monitoring: Groundwork's Air Rangers program (Richmond, CA) provides Purple Air Sensors at no cost to over 20 residents.