"Researchers have known since at least 2008 that wildfires can create chromium-6, but a new study, published in the journal Environmental Science and Technology in November, is the first to report details such as how long it might persist in groundwater."
"Chromium-6 can linger in groundwater at unsafe levels for up to two years post-wildfire, according to the research. Lead author Chelsea Obeidy... worked with Polizzotto on the study as a Ph.D. student."
Chromium-3, a harmless trace element found in soil, can transform into toxic chromium-6 due to wildfires. The heat and oxygen from fires change its chemical composition, making it a carcinogen linked to various health issues. Chromium-6 can become airborne or contaminate groundwater, posing risks to firefighters and residents. Research indicates that chromium-6 can remain in groundwater at unsafe levels for up to two years after a wildfire. A recent study provides new insights into the persistence of this toxic element post-fire.
Read at High Country News
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