Legacy PFOS AFFF

Manufactured by 3M since the 1960s, and sold under the "Light Water" brand in the U.S., this foam contains PFOS and perfluorohexane sulfonate (PFHxS). Although it has not been manufactured since 2002, it remains the primary contaminant found at impacted sites due to its long shelf life. Their use throughout military facilities, airports, and firefighting training grounds contributed to widespread contamination of the soil and water. The accumulation of these toxic substances led to continuous exposure of firefighters who constantly used these products in their daily operations and interventions.
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