Hexavalent Chromium Findings

On Thursday 8/28 LA Fire Health Study reported airborne hexavalent chromium nanoparticles—carcinogenic particles small enough to travel 6 miles, infiltrate homes, and accumulate in the body over time—at levels higher than EPA indoor air safety thresholds. It’s important to understand that while hexavalent chromium is a known carcinogen, the risk comes mainly from long-term, repeated exposure. Its harmful effects accumulate in the body over time, rather than from a single brief encounter. This means that reducing everyday exposure is critical to lowering long-term health risks. Access the data brief, the recording for the event, and key findings from the recording here.