Environmental

In Washington, 'emerging contaminants' such as PFAS (per- and polyfluoroalkyl substances) are increasingly being discovered near:

AOnly industrial chemical plants
BMilitary bases, airports, and fire training facilities where PFAS-containing firefighting foam was used✓ Correct
CUrban residential neighborhoods only
DOrganic farming operations

Explanation

PFAS contamination ('forever chemicals') in Washington is primarily associated with areas where AFFF (aqueous film-forming foam) firefighting foam was used — including military bases (like JBLM near Tacoma), airports, and fire training facilities.

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